CN117155281B - New energy power generation monitoring system and method - Google Patents
New energy power generation monitoring system and method Download PDFInfo
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- CN117155281B CN117155281B CN202311437905.0A CN202311437905A CN117155281B CN 117155281 B CN117155281 B CN 117155281B CN 202311437905 A CN202311437905 A CN 202311437905A CN 117155281 B CN117155281 B CN 117155281B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 45
- 238000010248 power generation Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 30
- 230000007613 environmental effect Effects 0.000 claims abstract description 18
- 238000012937 correction Methods 0.000 claims description 54
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 230000005855 radiation Effects 0.000 abstract description 14
- 230000002354 daily effect Effects 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- General Physics & Mathematics (AREA)
- Sustainable Energy (AREA)
- Automation & Control Theory (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to the technical field of photovoltaic power generation, in particular to a new energy power generation monitoring system and a method, wherein the system comprises the following steps: the photovoltaic panels are arranged at a preset inclination angle; the inclination angle adjusting unit is used for adjusting the inclination angle of the photovoltaic panel; the power generation monitoring unit is used for monitoring environmental data and operation data of the photovoltaic panel in real time; and the processing control unit is used for acquiring the operation data and the environment data, determining the optimal inclination angle of the photovoltaic panel according to the operation data and the environment data, and controlling the inclination angle adjusting unit to adjust according to the optimal inclination angle. According to the invention, the optimal inclination angle of the photovoltaic panel is determined according to the monitoring data, and the inclination angle adjusting unit is controlled according to the optimal inclination angle to adjust the inclination angle of the photovoltaic panel, so that the direct radiation receiving amount of the photovoltaic panel is improved, and the power generation efficiency of the photovoltaic panel is further improved.
Description
Technical Field
The invention relates to the technical field of new energy power generation, in particular to a new energy power generation monitoring system and a new energy power generation monitoring method.
Background
The inclination angle of the photovoltaic power station is the included angle between the surface of the photovoltaic module and the ground surface horizontal plane. When designing a power station, generally referring to historical data of cumulative radiation quantity all the year round under different inclination angles, the angle with the highest radiation quantity is selected as the optimal inclination angle design. Because the earth is in revolution motion around the sun, the direct solar radiation point always reciprocates between the north and south return lines of the earth in one revolution period. Therefore, the total amount of radiation received by the surface plane of the photovoltaic module is different under different inclination angles, and the inclination angle with the largest total amount of received annual radiation is called the optimal inclination angle.
When the angle with the highest cumulative radiation amount all the year round is used as the optimal inclination angle, the photovoltaic module is fixedly arranged at the optimal inclination angle after the optimal inclination angle is determined, dynamic adjustment cannot be carried out, and the direct radiation amount received by the photovoltaic module is reduced due to different incident angles of sunlight on the photovoltaic module every day, so that the generating capacity of the photovoltaic module is affected.
Therefore, how to dynamically adjust the inclination angle based on the setting of the photovoltaic module at the preset angle, so as to improve the receiving amount of the photovoltaic module to the direct radiation of sunlight is a new trend of technical development.
Disclosure of Invention
In view of this, the invention provides a new energy power generation monitoring system and method, which mainly aims to solve the problem of how to dynamically adjust the inclination angle of a photovoltaic module to improve the power generation capacity.
In one aspect, the invention provides a new energy power generation monitoring system, which comprises a control device and a plurality of photovoltaic plates, wherein the photovoltaic plates are arranged in a preset area at a preset inclination angle, and the control device is electrically connected with the photovoltaic plates; wherein the control device includes:
the inclination angle adjusting unit is used for adjusting the inclination angle of the photovoltaic panel;
the power generation monitoring unit is used for monitoring environmental data and operation data of the photovoltaic panel in real time;
the processing control unit is used for acquiring the operation data and the environment data, determining the optimal inclination angle of the photovoltaic panel according to the operation data and the environment data, and controlling the inclination angle adjusting unit to adjust according to the optimal inclination angle;
the processing control unit is also used for acquiring historical output power data and inclination angle data of the photovoltaic panel and establishing an output power-inclination angle relation curve according to the historical output power data and the inclination angle data;
wherein the operation data includes: the operation temperature, the actual output power and the theoretical output power of the photovoltaic panel; the environmental data includes: real-time wind speed, environment temperature, total daily sunshine duration and real-time daily sunshine duration;
when the processing control unit determines the optimal inclination angle of the photovoltaic panel according to the operation data and the environment data, acquiring the actual output power Aa and the theoretical output power Ab of the photovoltaic panel, and calculating to obtain an operation power ratio A, wherein A=aa/Ab;
presetting a lowest running power ratio Ac, wherein Ac=0.8Ab;
when A is more than or equal to Ac, judging that the photovoltaic panel is in normal operation;
and when A is smaller than Ac, judging that the photovoltaic panel operates abnormally.
In some embodiments of the present application, the processing control unit is further configured to obtain an operating temperature Ba and a real-time wind speed C of the photovoltaic panel after determining that the photovoltaic panel is abnormal;
presetting a first preset wind speed value C1, a second preset wind speed value C2, a third preset wind speed value C3 and a fourth preset wind speed value C4, wherein C1 is more than C2 and more than C3 is more than C4; presetting a first preset adjustment coefficient c1, a second preset adjustment coefficient c2, a third preset adjustment coefficient c3 and a fourth preset adjustment coefficient c4, wherein c1 is more than 0.9 and less than c2 and less than 1 and less than c3 and less than c4 and less than 1.1;
when C is more than or equal to C1, a first preset adjustment coefficient C1 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C1;
when C1 is more than or equal to C2, a second preset adjustment coefficient C2 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba C2;
when C2 is more than or equal to C3, a third preset adjustment coefficient C3 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C3;
when C3 is more than or equal to C4, a fourth preset adjustment coefficient C4 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba.c4.
In some embodiments of the present application, the processing control unit is further configured to adjust the operating temperature Ba of the photovoltaic panel by selecting an ith adjustment coefficient ci, i=1, 2,3,4, obtain the adjusted operating temperature ba×ci, obtain the ambient temperature Bc, calculate an operating temperature difference B between the adjusted operating temperature ba×ci of the photovoltaic panel and the ambient temperature Bc, and b=ba×ci-Bc;
presetting a first preset temperature difference B1, a second preset temperature difference B2, a third preset temperature difference B3 and a fourth preset temperature difference B4, wherein B1 is more than B2 and more than B3 is more than B4; presetting a first preset adjustment coefficient b1, a second preset adjustment coefficient b2, a third preset adjustment coefficient b3 and a fourth preset adjustment coefficient b4, wherein 1.1 is more than b1, b2 is more than 1, b3 is more than b4 is more than 0.9;
when B is more than or equal to B1, a first preset adjustment coefficient B1 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B1;
when B1 is more than B and equal to or greater than B2, a second preset adjustment coefficient B2 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B2;
when B2 is more than B3, selecting a third preset adjustment coefficient B3 to adjust the actual output power Aa, wherein the adjusted actual output power is Aa x B3;
when B3 is larger than or equal to B4, a fourth preset adjustment coefficient B4 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B4.
In some embodiments of the present application, the processing control unit is further configured to, after the ith adjustment coefficient bi is selected to adjust the actual output power Aa, i=1, 2,3,4, obtain the adjusted actual output power aa×bi, obtain, according to the output power-tilt angle relationship curve, a historical tilt angle Xz corresponding to the adjusted actual output power aa×bi;
presetting a preset adjustment angle of the photovoltaic panel as Xa, wherein the optimal inclination angle is X, the preset inclination angle is Xb, and Xa= |Xz-Xb|;
presetting a first preset output power as A1, a second preset output power as A2, a third preset output power as A3 and a fourth preset output power as A4, wherein A1 is more than A2 is more than A3 is more than A4; presetting a first preset correction coefficient a1, a second preset correction coefficient a2, a third preset correction coefficient a3 and a fourth preset correction coefficient a4, wherein a1 is more than 0.8 and a2 is more than 1 and a3 is more than 1 and a4 is more than 1.2;
when Aa is greater than or equal to A1, a first preset correction coefficient A1 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is Xa 1;
when A1 is larger than Aa and larger than or equal to A2, a second preset correction coefficient A2 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A2;
when A2 & gtAa & gtbi & gtA 3, selecting a third preset correction coefficient A3 to correct the preset adjustment angle Xa, wherein the corrected preset adjustment angle Xa & gta 3;
when A3 > Aa is greater than or equal to A4, a fourth preset correction coefficient A4 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A4.
In some embodiments of the present application, the processing control unit is further configured to, after selecting the i-th correction coefficient ai to correct the preset adjustment angle Xa, i=1, 2,3,4, obtain the corrected preset adjustment angle xa×ai, obtain the total solar duration Ha of the day and the real-time solar duration Hb of the day, and calculate to obtain a solar duration difference H0, where h0=hb-Ha/2;
when H0 is more than or equal to 0, the optimal inclination angle X of the photovoltaic panel after adjustment is X=Xb-Xa ai;
when H0 < 0, the optimal inclination angle X of the photovoltaic panel after adjustment is x=xb+xa×ai.
In another aspect, the invention provides a new energy power generation monitoring method, which adopts the new energy power generation monitoring system, comprising the following steps:
monitoring environmental data and operation data of the photovoltaic panel in real time;
acquiring the operation data and the environment data, and determining an optimal inclination angle of the photovoltaic panel according to the operation data and the environment data so as to control the inclination angle adjusting unit to adjust according to the optimal inclination angle;
acquiring historical output power data and inclination angle data of the photovoltaic panel, and establishing an output power-inclination angle relation curve according to the historical output power data and the inclination angle data;
wherein the operation data includes: the operation temperature, the actual output power and the theoretical output power of the photovoltaic panel; the environmental data includes: real-time wind speed, environment temperature, total daily sunshine duration and real-time daily sunshine duration;
when determining the optimal inclination angle of the photovoltaic board according to the operation data and the environment data, acquiring the actual output power Aa and the theoretical output power Ab of the photovoltaic board, and calculating to obtain an operation power ratio A, wherein A=aa/Ab;
presetting a lowest running power ratio Ac, wherein Ac=0.8Ab;
when A is more than or equal to Ac, judging that the photovoltaic panel is in normal operation;
and when A is smaller than Ac, judging that the photovoltaic panel operates abnormally.
In some embodiments of the present application, when it is determined that the photovoltaic panel is abnormal, an operating temperature Ba and a real-time wind speed C of the photovoltaic panel are obtained;
presetting a first preset wind speed value C1, a second preset wind speed value C2, a third preset wind speed value C3 and a fourth preset wind speed value C4, wherein C1 is more than C2 and more than C3 is more than C4; presetting a first preset adjustment coefficient c1, a second preset adjustment coefficient c2, a third preset adjustment coefficient c3 and a fourth preset adjustment coefficient c4, wherein c1 is more than 0.9 and less than c2 and less than 1 and less than c3 and less than c4 and less than 1.1;
when C is more than or equal to C1, a first preset adjustment coefficient C1 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C1;
when C1 is more than or equal to C2, a second preset adjustment coefficient C2 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba C2;
when C2 is more than or equal to C3, a third preset adjustment coefficient C3 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C3;
when C3 is more than or equal to C4, a fourth preset adjustment coefficient C4 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba.c4.
In some embodiments of the present application, after the ith adjustment coefficient ci is selected to adjust the operating temperature Ba of the photovoltaic panel, i=1, 2,3,4, and the adjusted operating temperature is ba×ci, the ambient temperature Bc is obtained, and the operating temperature difference B between the adjusted operating temperature ba×ci of the photovoltaic panel and the ambient temperature Bc is calculated, where b=ba×ci-Bc;
presetting a first preset temperature difference B1, a second preset temperature difference B2, a third preset temperature difference B3 and a fourth preset temperature difference B4, wherein B1 is more than B2 and more than B3 is more than B4; presetting a first preset adjustment coefficient b1, a second preset adjustment coefficient b2, a third preset adjustment coefficient b3 and a fourth preset adjustment coefficient b4, wherein 1.1 is more than b1, b2 is more than 1, b3 is more than b4 is more than 0.9;
when B is more than or equal to B1, a first preset adjustment coefficient B1 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B1;
when B1 is more than B and equal to or greater than B2, a second preset adjustment coefficient B2 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B2;
when B2 is more than B3, selecting a third preset adjustment coefficient B3 to adjust the actual output power Aa, wherein the adjusted actual output power is Aa x B3;
when B3 is larger than or equal to B4, a fourth preset adjustment coefficient B4 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B4.
In some embodiments of the present application, after the i-th adjustment coefficient bi is selected to adjust the actual output power Aa, i=1, 2,3,4, and the adjusted actual output power is aa×bi, the historical tilt angle Xz corresponding to the adjusted actual output power aa×bi is obtained according to the output power-tilt angle relation curve;
presetting a preset adjustment angle of the photovoltaic panel as Xa, wherein the optimal inclination angle is X, the preset inclination angle is Xb, and Xa= |Xz-Xb|;
presetting a first preset output power as A1, a second preset output power as A2, a third preset output power as A3 and a fourth preset output power as A4, wherein A1 is more than A2 is more than A3 is more than A4; presetting a first preset correction coefficient a1, a second preset correction coefficient a2, a third preset correction coefficient a3 and a fourth preset correction coefficient a4, wherein a1 is more than 0.8 and a2 is more than 1 and a3 is more than 1 and a4 is more than 1.2;
when Aa is greater than or equal to A1, a first preset correction coefficient A1 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is Xa 1;
when A1 is larger than Aa and larger than or equal to A2, a second preset correction coefficient A2 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A2;
when A2 & gtAa & gtbi & gtA 3, selecting a third preset correction coefficient A3 to correct the preset adjustment angle Xa, wherein the corrected preset adjustment angle Xa & gta 3;
when A3 > Aa is greater than or equal to A4, a fourth preset correction coefficient A4 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A4.
In some embodiments of the present application, after the i-th correction coefficient ai is selected to correct the preset adjustment angle Xa, i=1, 2,3,4, and the corrected preset adjustment angle Xa is obtained, the total solar duration Ha of the day and the real-time solar duration Hb of the day are obtained, and a solar duration difference H0 is calculated, where h0=hb-Ha/2;
when H0 is more than or equal to 0, the optimal inclination angle X of the photovoltaic panel after adjustment is X=Xb-Xa ai;
when H0 < 0, the optimal inclination angle X of the photovoltaic panel after adjustment is x=xb+xa×ai.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the inclination angle of the photovoltaic panel is adjusted by the inclination angle adjusting unit, the environmental data and the operation data of the photovoltaic panel are monitored in real time by the power generation monitoring unit, the monitoring data of the power generation monitoring unit are obtained by the processing control unit, the optimal inclination angle of the photovoltaic panel is determined according to the monitoring data, and the processing control unit also controls the inclination angle adjusting unit to adjust the inclination angle of the photovoltaic panel according to the optimal inclination angle, so that the direct radiation receiving amount of the photovoltaic panel is improved, and the power generation efficiency of the photovoltaic panel is further improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. In the drawings:
FIG. 1 is a functional block diagram of a new energy power generation monitoring system provided by an embodiment of the present invention;
fig. 2 is a flowchart of a new energy power generation monitoring method according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1, the embodiment provides a new energy power generation monitoring system, the device includes a control device and a plurality of photovoltaic panels, the photovoltaic panels are arranged in a preset area at a preset inclination angle, and the control device is electrically connected with the photovoltaic panels; wherein the control device includes:
the inclination angle adjusting unit is used for adjusting the inclination angle of the photovoltaic panel;
the power generation monitoring unit is used for monitoring environmental data and operation data of the photovoltaic panel in real time;
the processing control unit is used for acquiring operation data and environment data, determining the optimal inclination angle of the photovoltaic panel according to the operation data and the environment data, and controlling the inclination angle adjusting unit to adjust according to the optimal inclination angle;
the processing control unit is also used for acquiring historical output power data and inclination angle data of the photovoltaic panel and establishing an output power-inclination angle relation curve according to the historical output power data and the inclination angle data;
wherein the operation data includes: operating temperature, actual output power and theoretical output power of the photovoltaic panel; the environmental data includes: real-time wind speed, ambient temperature, total daily time and real-time daily time.
It can be understood that in this embodiment, the operation data and the environmental data of the photovoltaic panel are obtained through real-time monitoring by the control device, the optimal inclination angle of the photovoltaic panel is determined according to the operation data and the environmental data of the photovoltaic panel, and the inclination angle adjusting unit is controlled to adjust the photovoltaic panel according to the optimal inclination angle, so as to improve the direct radiation amount received by the photovoltaic panel every day, and further improve the generated energy.
Specifically, the control device in this embodiment may be a computer system, or any device capable of performing a monitoring control function, which is not particularly limited.
In a specific embodiment of the present application, when the processing control unit determines the optimal inclination angle of the photovoltaic panel according to the operation data and the environmental data, the actual output power Aa and the theoretical output power Ab of the photovoltaic panel are obtained, the operation power ratio a is calculated, and a=aa/Ab;
presetting a lowest running power ratio Ac, wherein Ac=0.8Ab;
when A is more than or equal to Ac, judging that the photovoltaic panel is in normal operation;
and when A is less than Ac, judging that the photovoltaic panel operates abnormally.
It can be understood that in this embodiment, by determining whether the ratio between the actual output power and the theoretical output power of the photovoltaic panel is within the preset range, if the output power of the photovoltaic panel is reduced, it is indicated that the photovoltaic panel is abnormal in operation, the power generation capability thereof is reduced, and adjustment is required to increase the power generation rate.
In a specific embodiment of the present application, the processing control unit is further configured to obtain an operating temperature Ba and a real-time wind speed C of the photovoltaic panel after determining that the photovoltaic panel is abnormal;
presetting a first preset wind speed value C1, a second preset wind speed value C2, a third preset wind speed value C3 and a fourth preset wind speed value C4, wherein C1 is more than C2 and more than C3 is more than C4; presetting a first preset adjustment coefficient c1, a second preset adjustment coefficient c2, a third preset adjustment coefficient c3 and a fourth preset adjustment coefficient c4, wherein c1 is more than 0.9 and less than c2 and less than 1 and less than c3 and less than c4 and less than 1.1;
when C is more than or equal to C1, a first preset adjustment coefficient C1 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C1;
when C1 is more than C and is more than or equal to C2, a second preset adjustment coefficient C2 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C2;
when C2 is more than or equal to C3, a third preset adjustment coefficient C3 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C3;
when C3 is more than or equal to C4, a fourth preset adjustment coefficient C4 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba.c4.
It can be understood that in this embodiment, by acquiring the real-time wind speed and the operating temperature of the photovoltaic panel, and selecting the corresponding adjustment coefficient according to the real-time wind speed to adjust the operating temperature of the photovoltaic panel, the high temperature phenomenon of the photovoltaic panel is aggravated because the photovoltaic panel generates heat in the operating process and the real-time wind speed is too low to be unfavorable for the heat dissipation of the photovoltaic panel.
In a specific embodiment of the present application, the processing control unit is further configured to adjust the operating temperature Ba of the photovoltaic panel by selecting the ith adjustment coefficient ci, i=1, 2,3,4, obtain the adjusted operating temperature ba×ci, obtain the ambient temperature Bc, calculate an operating temperature difference B between the adjusted operating temperature ba×ci of the photovoltaic panel and the ambient temperature Bc, and b=ba×ci-Bc;
presetting a first preset temperature difference B1, a second preset temperature difference B2, a third preset temperature difference B3 and a fourth preset temperature difference B4, wherein B1 is more than B2 and more than B3 is more than B4; presetting a first preset adjustment coefficient b1, a second preset adjustment coefficient b2, a third preset adjustment coefficient b3 and a fourth preset adjustment coefficient b4, wherein 1.1 is more than b1, b2 is more than 1, b3 is more than b4 is more than 0.9;
when B is more than or equal to B1, a first preset adjustment coefficient B1 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B1;
when B1 is more than B and equal to or greater than B2, a second preset adjustment coefficient B2 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B2;
when B2 is more than B3, selecting a third preset adjustment coefficient B3 to adjust the actual output power Aa, wherein the adjusted actual output power is Aa x B3;
when B3 is larger than or equal to B4, a fourth preset adjustment coefficient B4 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B4.
It can be understood that, because the temperature difference between the photovoltaic panel and the environment is too small, the heat dissipation of the photovoltaic panel is unfavorable for causing the abnormal operation of the photovoltaic panel so as to reduce the power generation efficiency, in this embodiment, the operation temperature difference between the operation temperature and the environment temperature of the photovoltaic panel after adjustment is obtained, and the actual output power of the photovoltaic panel is adjusted by selecting the corresponding adjustment coefficient according to the operation temperature difference.
In a specific embodiment of the present application, the processing control unit is further configured to, after selecting an ith adjustment coefficient bi to adjust the actual output power Aa, obtain an adjusted actual output power Aa by using i=1, 2,3,4, obtain a historical tilt angle Xz corresponding to the adjusted actual output power Aa by using Aa;
presetting a preset adjustment angle of the photovoltaic panel as Xa, wherein the optimal inclination angle is X, the preset inclination angle is Xb, and Xa= |Xz-Xb|;
presetting a first preset output power as A1, a second preset output power as A2, a third preset output power as A3 and a fourth preset output power as A4, wherein A1 is more than A2 is more than A3 is more than A4; presetting a first preset correction coefficient a1, a second preset correction coefficient a2, a third preset correction coefficient a3 and a fourth preset correction coefficient a4, wherein a1 is more than 0.8 and a2 is more than 1 and a3 is more than 1 and a4 is more than 1.2;
when Aa is greater than or equal to A1, a first preset correction coefficient A1 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is Xa 1;
when A1 is larger than Aa and larger than or equal to A2, a second preset correction coefficient A2 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A2;
when A2 & gtAa & gtbi & gtA 3, selecting a third preset correction coefficient A3 to correct the preset adjustment angle Xa, wherein the corrected preset adjustment angle Xa & gta 3;
when A3 > Aa is greater than or equal to A4, a fourth preset correction coefficient A4 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A4.
It can be understood that in this embodiment, the preset adjustment angle is determined by acquiring the historical inclination angle, and the corresponding adjustment coefficient is selected according to the adjusted actual output power to adjust the preset adjustment angle, so as to ensure the operation efficiency of the adaptive photovoltaic panel.
In a specific embodiment of the present application, the processing control unit is further configured to correct the preset adjustment angle Xa by selecting the ith correction coefficient ai, i=1, 2,3,4, obtain the corrected preset adjustment angle xa×ai, obtain the total solar duration Ha of the day and the real-time solar duration Hb of the day, and calculate to obtain a solar duration difference H0, where h0=hb-Ha/2;
when H0 is more than or equal to 0, the optimal inclination angle X of the photovoltaic panel after adjustment is X=Xb-Xa ai;
when H0 < 0, the optimal inclination angle X of the photovoltaic panel after adjustment is x=xb+xa×ai.
It can be understood that, because the incident angles of sunlight in one day are different, when the sunlight is in front of the noon of one day, the incident angle is smaller, the direct radiation receiving amount can be improved only by increasing the inclined angle, and when the sunlight is in front of the noon of one day, the incident angle is increased, and the direct radiation receiving amount can be improved only by decreasing the inclined angle.
Referring to fig. 2, in another aspect, the present invention provides a new energy power generation monitoring method, which is implemented by using the new energy power generation monitoring system in the above embodiment, and includes the following steps:
step S100: monitoring environmental data and operation data of the photovoltaic panel in real time;
step S200: acquiring the operation data and the environment data, and determining an optimal inclination angle of the photovoltaic panel according to the operation data and the environment data so as to control the inclination angle adjusting unit to adjust according to the optimal inclination angle;
step S300: acquiring historical output power data and inclination angle data of the photovoltaic panel, and establishing an output power-inclination angle relation curve according to the historical output power data and the inclination angle data;
wherein the operation data includes: the operation temperature, the actual output power and the theoretical output power of the photovoltaic panel; the environmental data includes: real-time wind speed, environment temperature, total daily sunshine duration and real-time daily sunshine duration;
step S400: when determining the optimal inclination angle of the photovoltaic board according to the operation data and the environment data, acquiring the actual output power Aa and the theoretical output power Ab of the photovoltaic board, and calculating to obtain an operation power ratio A, wherein A=aa/Ab;
presetting a lowest running power ratio Ac, wherein Ac=0.8Ab;
when A is more than or equal to Ac, judging that the photovoltaic panel is in normal operation;
and when A is smaller than Ac, judging that the photovoltaic panel operates abnormally.
In a specific embodiment of the present application, after determining that the photovoltaic panel is abnormal, acquiring an operating temperature Ba and a real-time wind speed C of the photovoltaic panel;
presetting a first preset wind speed value C1, a second preset wind speed value C2, a third preset wind speed value C3 and a fourth preset wind speed value C4, wherein C1 is more than C2 and more than C3 is more than C4; presetting a first preset adjustment coefficient c1, a second preset adjustment coefficient c2, a third preset adjustment coefficient c3 and a fourth preset adjustment coefficient c4, wherein c1 is more than 0.9 and less than c2 and less than 1 and less than c3 and less than c4 and less than 1.1;
when C is more than or equal to C1, a first preset adjustment coefficient C1 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C1;
when C1 is more than or equal to C2, a second preset adjustment coefficient C2 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba C2;
when C2 is more than or equal to C3, a third preset adjustment coefficient C3 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C3;
when C3 is more than or equal to C4, a fourth preset adjustment coefficient C4 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba.c4.
In a specific embodiment of the present application, after the ith adjustment coefficient ci is selected to adjust the operating temperature Ba of the photovoltaic panel, i=1, 2,3,4, and the adjusted operating temperature is ba×ci, the ambient temperature Bc is obtained, and the operating temperature difference B between the adjusted operating temperature ba×ci of the photovoltaic panel and the ambient temperature Bc is calculated, where b=ba×ci-Bc;
presetting a first preset temperature difference B1, a second preset temperature difference B2, a third preset temperature difference B3 and a fourth preset temperature difference B4, wherein B1 is more than B2 and more than B3 is more than B4; presetting a first preset adjustment coefficient b1, a second preset adjustment coefficient b2, a third preset adjustment coefficient b3 and a fourth preset adjustment coefficient b4, wherein 1.1 is more than b1, b2 is more than 1, b3 is more than b4 is more than 0.9;
when B is more than or equal to B1, a first preset adjustment coefficient B1 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B1;
when B1 is more than B and equal to or greater than B2, a second preset adjustment coefficient B2 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B2;
when B2 is more than B3, selecting a third preset adjustment coefficient B3 to adjust the actual output power Aa, wherein the adjusted actual output power is Aa x B3;
when B3 is larger than or equal to B4, a fourth preset adjustment coefficient B4 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B4.
In a specific embodiment of the present application, after the i-th adjustment coefficient bi is selected to adjust the actual output power Aa, i=1, 2,3,4, and the adjusted actual output power is aa×bi, the historical tilt angle Xz corresponding to the adjusted actual output power aa×bi is obtained according to the output power-tilt angle relation curve;
presetting a preset adjustment angle of the photovoltaic panel as Xa, wherein the optimal inclination angle is X, the preset inclination angle is Xb, and Xa= |Xz-Xb|;
presetting a first preset output power as A1, a second preset output power as A2, a third preset output power as A3 and a fourth preset output power as A4, wherein A1 is more than A2 is more than A3 is more than A4; presetting a first preset correction coefficient a1, a second preset correction coefficient a2, a third preset correction coefficient a3 and a fourth preset correction coefficient a4, wherein a1 is more than 0.8 and a2 is more than 1 and a3 is more than 1 and a4 is more than 1.2;
when Aa is greater than or equal to A1, a first preset correction coefficient A1 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is Xa 1;
when A1 is larger than Aa and larger than or equal to A2, a second preset correction coefficient A2 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A2;
when A2 & gtAa & gtbi & gtA 3, selecting a third preset correction coefficient A3 to correct the preset adjustment angle Xa, wherein the corrected preset adjustment angle Xa & gta 3;
when A3 > Aa is greater than or equal to A4, a fourth preset correction coefficient A4 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A4.
In a specific embodiment of the present application, after the i-th correction coefficient ai is selected to correct the preset adjustment angle Xa, i=1, 2,3,4, and the corrected preset adjustment angle Xa is obtained, the total solar duration Ha of the day and the real-time solar duration Hb of the day are obtained, and the solar duration difference H0 is calculated, where h0=hb-Ha/2;
when H0 is more than or equal to 0, the optimal inclination angle X of the photovoltaic panel after adjustment is X=Xb-Xa ai;
when H0 < 0, the optimal inclination angle X of the photovoltaic panel after adjustment is x=xb+xa×ai.
It can be understood that in this embodiment, the inclination angle of the photovoltaic panel is adjusted by the inclination angle adjusting unit, the environmental data and the operation data of the photovoltaic panel are monitored in real time by the power generation monitoring unit, the monitoring data of the power generation monitoring unit are obtained by the processing control unit, the optimal inclination angle of the photovoltaic panel is determined according to the monitoring data, and the processing control unit also controls the inclination angle adjusting unit to adjust the inclination angle of the photovoltaic panel according to the optimal inclination angle, so as to improve the direct radiation receiving amount of the photovoltaic panel, and further improve the power generation efficiency of the photovoltaic panel.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (8)
1. The new energy power generation monitoring system is characterized by comprising a control device and a plurality of photovoltaic plates, wherein the photovoltaic plates are arranged in a preset area at a preset inclination angle, and the control device is electrically connected with the photovoltaic plates; wherein the control device includes:
the inclination angle adjusting unit is used for adjusting the inclination angle of the photovoltaic panel;
the power generation monitoring unit is used for monitoring environmental data and operation data of the photovoltaic panel in real time;
the processing control unit is used for acquiring the operation data and the environment data, determining the optimal inclination angle of the photovoltaic panel according to the operation data and the environment data, and controlling the inclination angle adjusting unit to adjust according to the optimal inclination angle;
the processing control unit is also used for acquiring historical output power data and inclination angle data of the photovoltaic panel and establishing an output power-inclination angle relation curve according to the historical output power data and the inclination angle data;
wherein the operation data includes: the operation temperature, the actual output power and the theoretical output power of the photovoltaic panel; the environmental data includes: real-time wind speed, environment temperature, total daily sunshine duration and real-time daily sunshine duration;
when the processing control unit determines the optimal inclination angle of the photovoltaic panel according to the operation data and the environment data, acquiring the actual output power Aa and the theoretical output power Ab of the photovoltaic panel, and calculating to obtain an operation power ratio A, wherein A=aa/Ab;
presetting a lowest running power ratio Ac, wherein Ac=0.8Ab;
when A is more than or equal to Ac, judging that the photovoltaic panel is in normal operation;
when A is smaller than Ac, judging that the photovoltaic panel operates abnormally;
the processing control unit is also used for acquiring the operating temperature Ba and the real-time wind speed C of the photovoltaic panel after judging that the photovoltaic panel is abnormal;
presetting a first preset wind speed value C1, a second preset wind speed value C2, a third preset wind speed value C3 and a fourth preset wind speed value C4, wherein C1 is more than C2 and more than C3 is more than C4; presetting a first preset adjustment coefficient c1, a second preset adjustment coefficient c2, a third preset adjustment coefficient c3 and a fourth preset adjustment coefficient c4, wherein c1 is more than 0.9 and less than c2 and less than 1 and less than c3 and less than c4 and less than 1.1;
when C is more than or equal to C1, a first preset adjustment coefficient C1 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C1;
when C1 is more than or equal to C2, a second preset adjustment coefficient C2 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba C2;
when C2 is more than or equal to C3, a third preset adjustment coefficient C3 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C3;
when C3 is more than or equal to C4, a fourth preset adjustment coefficient C4 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba.c4.
2. The new energy power generation monitoring system according to claim 1, wherein the processing control unit is further configured to adjust the operating temperature Ba of the photovoltaic panel by selecting an ith adjustment coefficient ci, i=1, 2,3,4, obtain an adjusted operating temperature ba×ci, obtain an ambient temperature Bc, and calculate an operating temperature difference B between the adjusted operating temperature ba×ci and the ambient temperature Bc of the photovoltaic panel, where b=ba×ci-Bc;
presetting a first preset temperature difference B1, a second preset temperature difference B2, a third preset temperature difference B3 and a fourth preset temperature difference B4, wherein B1 is more than B2 and more than B3 is more than B4; presetting a first preset adjustment coefficient b1, a second preset adjustment coefficient b2, a third preset adjustment coefficient b3 and a fourth preset adjustment coefficient b4, wherein 1.1 is more than b1, b2 is more than 1, b3 is more than b4 is more than 0.9;
when B is more than or equal to B1, a first preset adjustment coefficient B1 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B1;
when B1 is more than B and equal to or greater than B2, a second preset adjustment coefficient B2 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B2;
when B2 is more than B3, selecting a third preset adjustment coefficient B3 to adjust the actual output power Aa, wherein the adjusted actual output power is Aa x B3;
when B3 is larger than or equal to B4, a fourth preset adjustment coefficient B4 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B4.
3. The new energy power generation monitoring system according to claim 2, wherein the processing control unit is further configured to, after selecting an ith adjustment coefficient bi to adjust the actual output power Aa, obtain an adjusted actual output power Aa by i=1, 2,3,4, obtain a historical inclination angle Xz corresponding to the adjusted actual output power Aa by using the output power-inclination angle relation curve;
presetting a preset adjustment angle of the photovoltaic panel as Xa, wherein the optimal inclination angle is X, the preset inclination angle is Xb, and Xa= |Xz-Xb|;
presetting a first preset output power as A1, a second preset output power as A2, a third preset output power as A3 and a fourth preset output power as A4, wherein A1 is more than A2 is more than A3 is more than A4; presetting a first preset correction coefficient a1, a second preset correction coefficient a2, a third preset correction coefficient a3 and a fourth preset correction coefficient a4, wherein a1 is more than 0.8 and a2 is more than 1 and a3 is more than 1 and a4 is more than 1.2;
when Aa is greater than or equal to A1, a first preset correction coefficient A1 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is Xa 1;
when A1 is larger than Aa and larger than or equal to A2, a second preset correction coefficient A2 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A2;
when A2 & gtAa & gtbi & gtA 3, selecting a third preset correction coefficient A3 to correct the preset adjustment angle Xa, wherein the corrected preset adjustment angle Xa & gta 3;
when A3 > Aa is greater than or equal to A4, a fourth preset correction coefficient A4 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A4.
4. The new energy power generation monitoring system according to claim 3, wherein the processing control unit is further configured to correct the preset adjustment angle Xa by selecting an ith correction coefficient ai, i=1, 2,3,4, obtain the corrected preset adjustment angle xa×ai, obtain the total solar duration Ha of the day and the real-time solar duration Hb of the day, and calculate a solar duration difference H0, where h0=hb-Ha/2;
when H0 is more than or equal to 0, the optimal inclination angle X of the photovoltaic panel after adjustment is X=Xb-Xa ai;
when H0 < 0, the optimal inclination angle X of the photovoltaic panel after adjustment is x=xb+xa×ai.
5. A new energy power generation monitoring method, characterized in that the new energy power generation monitoring system according to any one of claims 1 to 4 is adopted, comprising:
monitoring environmental data and operation data of the photovoltaic panel in real time;
acquiring the operation data and the environment data, and determining an optimal inclination angle of the photovoltaic panel according to the operation data and the environment data so as to control the inclination angle adjusting unit to adjust according to the optimal inclination angle;
acquiring historical output power data and inclination angle data of the photovoltaic panel, and establishing an output power-inclination angle relation curve according to the historical output power data and the inclination angle data;
wherein the operation data includes: the operation temperature, the actual output power and the theoretical output power of the photovoltaic panel; the environmental data includes: real-time wind speed, environment temperature, total daily sunshine duration and real-time daily sunshine duration;
when determining the optimal inclination angle of the photovoltaic board according to the operation data and the environment data, acquiring the actual output power Aa and the theoretical output power Ab of the photovoltaic board, and calculating to obtain an operation power ratio A, wherein A=aa/Ab;
presetting a lowest running power ratio Ac, wherein Ac=0.8Ab;
when A is more than or equal to Ac, judging that the photovoltaic panel is in normal operation;
when A is smaller than Ac, judging that the photovoltaic panel operates abnormally;
when the photovoltaic panel is judged to be abnormal, acquiring the operating temperature Ba and the real-time wind speed C of the photovoltaic panel;
presetting a first preset wind speed value C1, a second preset wind speed value C2, a third preset wind speed value C3 and a fourth preset wind speed value C4, wherein C1 is more than C2 and more than C3 is more than C4; presetting a first preset adjustment coefficient c1, a second preset adjustment coefficient c2, a third preset adjustment coefficient c3 and a fourth preset adjustment coefficient c4, wherein c1 is more than 0.9 and less than c2 and less than 1 and less than c3 and less than c4 and less than 1.1;
when C is more than or equal to C1, a first preset adjustment coefficient C1 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C1;
when C1 is more than or equal to C2, a second preset adjustment coefficient C2 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba C2;
when C2 is more than or equal to C3, a third preset adjustment coefficient C3 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba x C3;
when C3 is more than or equal to C4, a fourth preset adjustment coefficient C4 is selected to adjust the operating temperature Ba of the photovoltaic panel, and the adjusted operating temperature is Ba.c4.
6. The method for monitoring new energy power generation according to claim 5, wherein, after the ith adjustment coefficient ci is selected to adjust the operating temperature Ba of the photovoltaic panel, i=1, 2,3,4, and the adjusted operating temperature Ba is obtained, the ambient temperature Bc is obtained, and the operating temperature difference B between the adjusted operating temperature ba×ci of the photovoltaic panel and the ambient temperature Bc is calculated, and b=ba×ci-Bc;
presetting a first preset temperature difference B1, a second preset temperature difference B2, a third preset temperature difference B3 and a fourth preset temperature difference B4, wherein B1 is more than B2 and more than B3 is more than B4; presetting a first preset adjustment coefficient b1, a second preset adjustment coefficient b2, a third preset adjustment coefficient b3 and a fourth preset adjustment coefficient b4, wherein 1.1 is more than b1, b2 is more than 1, b3 is more than b4 is more than 0.9;
when B is more than or equal to B1, a first preset adjustment coefficient B1 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B1;
when B1 is more than B and equal to or greater than B2, a second preset adjustment coefficient B2 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B2;
when B2 is more than B3, selecting a third preset adjustment coefficient B3 to adjust the actual output power Aa, wherein the adjusted actual output power is Aa x B3;
when B3 is larger than or equal to B4, a fourth preset adjustment coefficient B4 is selected to adjust the actual output power Aa, and the adjusted actual output power is Aa x B4.
7. The method for monitoring power generation of new energy according to claim 6, wherein, after the i-th adjustment coefficient bi is selected to adjust the actual output power Aa, i=1, 2,3,4, the adjusted actual output power is obtained as Aa x bi, and then the historical tilt angle Xz corresponding to the adjusted actual output power Aa x bi is obtained according to the output power-tilt angle relation curve;
presetting a preset adjustment angle of the photovoltaic panel as Xa, wherein the optimal inclination angle is X, the preset inclination angle is Xb, and Xa= |Xz-Xb|;
presetting a first preset output power as A1, a second preset output power as A2, a third preset output power as A3 and a fourth preset output power as A4, wherein A1 is more than A2 is more than A3 is more than A4; presetting a first preset correction coefficient a1, a second preset correction coefficient a2, a third preset correction coefficient a3 and a fourth preset correction coefficient a4, wherein a1 is more than 0.8 and a2 is more than 1 and a3 is more than 1 and a4 is more than 1.2;
when Aa is greater than or equal to A1, a first preset correction coefficient A1 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is Xa 1;
when A1 is larger than Aa and larger than or equal to A2, a second preset correction coefficient A2 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A2;
when A2 & gtAa & gtbi & gtA 3, selecting a third preset correction coefficient A3 to correct the preset adjustment angle Xa, wherein the corrected preset adjustment angle Xa & gta 3;
when A3 > Aa is greater than or equal to A4, a fourth preset correction coefficient A4 is selected to correct the preset adjustment angle Xa, and the corrected preset adjustment angle Xa is equal to A4.
8. The method for monitoring new energy power generation according to claim 7, wherein, after the i-th correction coefficient ai is selected to correct the preset adjustment angle Xa, i=1, 2,3,4, and the corrected preset adjustment angle Xa is obtained, the total solar duration Ha of the day and the real-time solar duration Hb of the day are obtained, and a solar duration difference H0 is calculated, and h0=hb-Ha/2;
when H0 is more than or equal to 0, the optimal inclination angle X of the photovoltaic panel after adjustment is X=Xb-Xa ai;
when H0 < 0, the optimal inclination angle X of the photovoltaic panel after adjustment is x=xb+xa×ai.
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| CN116107350A (en) * | 2022-11-25 | 2023-05-12 | 华能新疆吉木萨尔新能源有限公司 | Efficient photovoltaic power generation system |
| CN116317884A (en) * | 2022-12-19 | 2023-06-23 | 广州广日股份有限公司研究院 | Control method for photovoltaic power generation, photovoltaic power generation equipment and elevator system |
| CN116073747A (en) * | 2022-12-21 | 2023-05-05 | 华能国际电力股份有限公司河北清洁能源分公司 | Wind-photovoltaic-resistant support tracking method and system |
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Denomination of invention: A new energy generation monitoring system and method Granted publication date: 20240202 Pledgee: Bank of China Limited Xi'an High tech Development Zone Sub branch Pledgor: Xi'an Guanglin Huizhi Energy Technology Co.,Ltd. Registration number: Y2024980033686 |
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