CN110736871A - photovoltaic array power analyzer, power analysis system and power analysis method - Google Patents
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- 238000010248 power generation Methods 0.000 claims description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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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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- 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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Abstract
The invention discloses photovoltaic array power analyzers, a power analysis system and a power analysis method, wherein each power analyzer comprises a host, a wireless irradiance sampling transmission module, a wireless temperature sampling transmission module, a wireless voltage sampling transmission module and a wireless current transmission module which are wirelessly connected with the host, the wireless irradiance sampling transmission module is used for acquiring surface irradiation of a photovoltaic array, the wireless temperature sampling transmission module is used for acquiring temperature signals, the wireless voltage sampling transmission module is used for acquiring voltage signals and the wireless current transmission module is used for acquiring current signals, the host is also provided with a component temperature coefficient input module used for inputting a power temperature coefficient, and the host calculates the power of the photovoltaic array.
Description
Technical Field
The invention relates to the field of comprehensive measurement of various physical quantities, in particular to photovoltaic array power analyzers, power analysis systems and power analysis methods.
Background
With the continuous development of new energy industry, the requirements for power testing and attenuation calculation of photovoltaic module arrays become more and more important for power station construction and maintenance.
The photovoltaic module and a traditional generator are not types, and are types of static power generation equipment, the power generation power and the electrical performance parameters of the photovoltaic module are completely dependent on the processing technology of used materials, the module power is greatly influenced by various external environmental factors, the electrical performance is changed along with the lapse of time, the change is attenuation, the power is used as an important parameter of a photovoltaic power station, and the photovoltaic module needs to be tested in multiple links such as equipment production, engineering construction and the like.
The standard power of a common photovoltaic module array can be calculated only by measuring four physical quantities and inputting variables, the photovoltaic module has a floor area of , the measuring range of a testing device is limited, the photovoltaic module array can be tested only near a junction box or a distributed inverter, all the components connected below the junction box or the inverter are considered to be equal to the component array near the junction box or the distributed inverter, the light receiving surface is at the same angle of , and the back surface heat dissipation condition is the same.
Because no power test equipment aiming at the combiner box is available in the market at present, the power of the whole combiner box is tested by adopting multiple physical quantities to measure and record the power and then the result is obtained by later-stage calculation, the whole process is not only troublesome and unsafe and needs to be operated by multiple persons, and definite uncorrelated errors exist in each physical quantity test because the test sampling frequency of different instruments is different from samples.
Disclosure of Invention
In view of the above, there are photovoltaic array power analyzers and photovoltaic array power analysis schemes that are needed, and that can remotely test and transmit test data, and implement synchronous calculation of photovoltaic array power, and have more application scenarios after changing the calculation formula and measuring physical quantities, and the technical scheme is as follows:
, the invention provides photovoltaic array power analyzers for analyzing power of a photovoltaic array, the power analyzers comprising a host, a wireless irradiance sampling transmission module, a wireless temperature sampling transmission module, a wireless voltage sampling transmission module and a wireless streaming transmission module, wherein the wireless irradiance sampling transmission module, the wireless temperature sampling transmission module, the wireless voltage sampling transmission module and the wireless streaming transmission module are all wirelessly connected with the host;
the wireless irradiance sampling transmission module is connected with an irradiation measurement unit arranged on the photovoltaic array backboard, the wireless temperature sampling transmission module is connected with a temperature probe arranged on the photovoltaic array backboard, the wireless voltage sampling transmission module is connected with a voltage measurement unit arranged on an output circuit of the photovoltaic array, and the wireless current transmission module is connected with a current measurement unit arranged on the output circuit of the photovoltaic array;
the photovoltaic array power generation system is characterized in that a component temperature coefficient input module is further arranged on the host, and the power of the photovoltaic array is obtained according to a surface irradiation value collected by the wireless irradiance sampling transmission module, a temperature value collected by the wireless temperature sampling transmission module, a voltage value collected by the wireless voltage sampling transmission module, a current value collected by the wireless current transmission module and a temperature coefficient input by the component temperature coefficient input module.
Preferably , the host is a Zigbee coordinator, and the wireless irradiance sampling transmission module, the wireless temperature sampling transmission module, the wireless voltage sampling transmission module and the wireless streaming transmission module wirelessly communicate with the host through Zigbee.
Preferably , the wireless irradiance sampling transmission module, the wireless temperature sampling transmission module, the wireless voltage sampling transmission module and the wireless stream transmission module are in wireless communication with the host computer through WiFi or Bluetooth.
, the power analyzer further comprises a display unit electrically connected to the host for displaying the photovoltaic array power results processed by the host, and/or
The host is also used for wirelessly communicating with or more mobile terminals to send the processed photovoltaic array power results to the mobile terminals.
, the voltage measuring unit is connected in parallel to the output circuit of the photovoltaic array, and the current measuring unit is connected in series to the output circuit of the photovoltaic array.
In another aspect, the present invention provides a photovoltaic array power analysis system for analyzing power of a photovoltaic array, the power analysis system comprising an irradiance measurement unit disposed on the photovoltaic array backing sheet, a temperature probe disposed on the photovoltaic array backing sheet, a voltage measurement unit disposed on an output circuit of the photovoltaic array, a current measurement unit disposed on the output circuit of the photovoltaic array, and a photovoltaic array power analyzer as described above.
, the power analysis system further includes or more mobile terminals, the host computer wirelessly communicates with the mobile terminals to send the processed photovoltaic array power results to the mobile terminals.
In a further aspect, the invention provides photovoltaic array power analysis methods, comprising the steps of:
respectively collecting output voltage, current, surface irradiation and backboard temperature information of the photovoltaic array by using each measuring unit;
each measuring unit is in wireless communication connection with a coordinator, the coordinator receives the output voltage, the output current, the surface irradiation and the backboard temperature information, and a power temperature coefficient is set on the coordinator;
the coordinator calculates the power converted from the photovoltaic array to the standard state according to the output voltage, the current, the surface irradiation, the backboard temperature information and the power temperature coefficient by the following formula:
, each measuring unit comprises an irradiation measuring unit arranged on the photovoltaic array backboard, a temperature probe arranged on the photovoltaic array backboard, a voltage measuring unit arranged on an output circuit of the photovoltaic array and a current measuring unit arranged on the output circuit of the photovoltaic array, and the coordinator is in wireless communication connection with each measuring unit through Zigbee, WiFi or Bluetooth.
Optionally, the coordinator sends the converted photovoltaic array power in the standard state to the display unit in a wired manner, or sends the converted photovoltaic array power to the remote client in a wireless manner.
The invention has the following advantages:
a. all the physical quantity measurement is realized through wireless transmission, the irradiation and the temperature are measured and sampled aiming at a certain specific group of string objects, and the limitation of the distance between the irradiation and the combiner box or the group of string inverters by test equipment is not considered;
b. the test limit of a host circuit is not considered, and by adopting the zigbee communication technology, the operation program of the host can test a plurality of objects in a large-area range through modification and reselection or increase of the wireless sampling module, and the test is not limited to the recursion of the power test and the standard power of the photovoltaic module;
c. the test point position can be expanded as required, 256 kinds of measurement equipment can be supported to be on line at the maximum, and the expansion performance is very good;
d. programmability, can freely set an operation formula after sampling the physical quantity, and directly monitor an operation result.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a photovoltaic array power analyzer provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a photovoltaic array power analysis system provided by an embodiment of the invention;
FIG. 3 is a flow chart of a photovoltaic array power analysis method provided by an embodiment of the invention;
FIG. 4 is a flow chart of data processing in a photovoltaic array power analysis process provided by an embodiment of the present invention;
fig. 5 is a flowchart of a process of a wireless sampling transmission module in a power analyzer according to an embodiment of the present invention;
fig. 6 is a flowchart of a procedure of a coordinator in a power analyzer according to an embodiment of the present invention.
Wherein the reference numerals include: the system comprises a host, a 2-wireless voltage sampling and transmitting module, a 3-wireless current transmitting module, a 4-wireless irradiance sampling and transmitting module, a 5-wireless temperature sampling and transmitting module, a 6-voltage measuring unit, a 7-current measuring unit, an 8-irradiation measuring unit, a 9-temperature probe, a 10-display unit and a 11-mobile terminal.
Detailed Description
For those skilled in the art to better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a partial embodiment of of the present invention, rather than a complete embodiment.
Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, product, or device that comprises a series of steps or elements is not necessarily limited to the expressly listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, product, or device.
In embodiments of the invention, photovoltaic array power analyzers are provided for analyzing the power of a photovoltaic array, as shown in fig. 1, the power analyzers comprise a host 1, a wireless irradiance sampling transmission module 4, a wireless temperature sampling transmission module 5, a wireless voltage sampling transmission module 2 and a wireless current transmission module 3, wherein the wireless irradiance sampling transmission module 4, the wireless temperature sampling transmission module 5, the wireless voltage sampling transmission module 2 and the wireless current transmission module 3 are all wirelessly connected with the host 1, in the embodiment of the invention, a 2.4G communication CC2530 chip based on ieee802.15.4 is adopted, an ADC external interface of the CC2530 is used for performing analog-to-digital conversion on a measured physical quantity, an irradiation sensor of germany GMC is used for amplifying an irradiation signal by about 25 times through a signal amplifier and transmitting the irradiation signal to an ADC port of the CC2530, a voltage signal is directly connected to the ADC port of the CC2530 by a series resistance voltage dividing circuit, a precise direct current clamp Fluck 1010 is selected for converting a current signal into a voltage signal which is directly transmitted to the ADC port of the CC2530, a digital chip (digital B) chip (18B) is a digital bit number) which is a high-55, and has the characteristics of high anti-interference and high temperature measurement capability, and no need of a high-19-2-55 digital temperature measurement range, and no external temperature measurement.
The wireless irradiance sampling and transmitting module 4 is connected with an irradiation measuring unit 8 arranged on the photovoltaic array backboard, the wireless temperature sampling and transmitting module 5 is connected with a temperature probe 9 arranged on the photovoltaic array backboard, the wireless voltage sampling and transmitting module 2 is connected with a voltage measuring unit 6 arranged on an output circuit of the photovoltaic array, and the wireless current transmitting module 3 is connected with a current measuring unit 7 arranged on the output circuit of the photovoltaic array; as shown in fig. 2, the voltage measuring unit 6 is connected in parallel to the output circuit of the photovoltaic array, and the current measuring unit 7 is connected in series to the output circuit of the photovoltaic array.
In the embodiment of the invention, assuming that the flow of the voltage measuring unit 6 is 0-3.3V, the current measuring unit 7, the irradiation measuring unit 8 and the temperature probe 9 respectively convert and amplify the corresponding physical quantities to 0-3.3V voltage values so as to increase the measurement accuracy. And then the data is converted into corresponding 'ID + measurement data' through a wireless irradiance sampling transmission module 4, a wireless temperature sampling transmission module 5, a wireless voltage sampling transmission module 2 and a wireless current transmission module 3, and the corresponding 'ID + measurement data' is wirelessly transmitted to a host 1, as shown in fig. 4, wherein the ID is the ID of the wireless sampling transmission module, the host 1 can identify the type of the corresponding sampling transmission module according to the ID, and then identify whether the measurement data following the ID is a surface irradiation value, a temperature value, a voltage value or a current value, as shown in fig. 6, the data types are judged one by one, and then the corresponding data are processed and then summarized for power calculation. As shown in fig. 5, each wireless sampling transmission module joins the network after initialization, and if it is successfully joined, it sends system data, and if it is in idle state, it starts to detect data, process and send data, and feeds back whether it is successfully sent, if it is, it returns to idle state, and if it is, it returns to detect data.
The photovoltaic array power generation system is characterized in that a component temperature coefficient input module is further arranged on the host 1, the host 1 obtains the power of the photovoltaic array according to a surface irradiation value collected by the wireless irradiance sampling transmission module 4, a temperature value collected by the wireless temperature sampling transmission module 5, a voltage value collected by the wireless voltage sampling transmission module 2, a current value collected by the wireless current transmission module 3 and a temperature coefficient input by the component temperature coefficient input module, and the power is specifically calculated through the following formula:
In preferred embodiments of the present invention, the host 1 is a Zigbee coordinator, the Wireless irradiance sampling transmission module 4, the Wireless temperature sampling transmission module 5, the Wireless voltage sampling transmission module 2 and the Wireless stream transmission module 3 are in Wireless communication with the host 1 via Zigbee, Zigbee is a standard that defines series communication protocols required for short-distance, low-rate transmission rate Wireless communication such as Wireless Personal Area Network (WPAN), and divides the protocol model into two star types, namely, a physical layer and a media access control layer, to implement the protocol model, 915, which is based on Zigbee, uses an operating frequency band of 868MHz, MHz and 2.4ghz, and a maximum data transmission rate of 250Kbps, which is inexpensive, and is used by fixed, portable or mobile devices, and is implemented by using a Wireless connection technology with low complexity, low cost, low power consumption, low rate, which defines a Wireless connection technology that is used in a Personal Area Network, and uses a peer-to-peer access protocol supported protocol as a topology supporting mechanism for simultaneous access to peer-peer communication between the Personal Area Network and the Wireless communication.
In less preferred embodiments of the present invention, the wireless irradiance sampling transmission module 4, the wireless temperature sampling transmission module 5, the wireless voltage sampling transmission module 2 and the wireless streaming transmission module 3 communicate wirelessly with the host 1 via WiFi or bluetooth.
As shown in fig. 1, in embodiments of the present invention, the power analyzer further includes a display unit 10 electrically connected to the host 1 for displaying the photovoltaic array power result processed by the host 1, and/or
As shown in fig. 2, the host 1 is further configured to wirelessly communicate with or more mobile terminals 11, so as to transmit the processed photovoltaic array power result to the mobile terminals 11.
In embodiments of the present invention, photovoltaic array power analysis systems are provided for analyzing the power of a photovoltaic array, as shown in fig. 2, the power analysis systems include an irradiation measurement unit 8 disposed on the photovoltaic array backsheet, a temperature probe 9 disposed on the photovoltaic array backsheet, a voltage measurement unit 6 disposed on an output circuit of the photovoltaic array, a current measurement unit 7 disposed on the output circuit of the photovoltaic array, and the photovoltaic array power analyzer, whose structure is referred to the above embodiments, and is not described herein again.
, the power analysis system further includes or more mobile terminals 11 (only mobile terminals 11 are illustrated in fig. 2), and the host 1 wirelessly communicates with the mobile terminals 11 to send the processed photovoltaic array power result to the mobile terminals.
In embodiments of the present invention, there are provided photovoltaic array power analysis methods, as shown in FIG. 3, comprising the steps of:
s1, respectively collecting output voltage, current, surface irradiation and backboard temperature information of the photovoltaic array by using each measuring unit;
and S2, wirelessly communicating each measuring unit with a coordinator, receiving the output voltage, the output current, the surface irradiation and the backboard temperature information by the coordinator, and setting a power temperature coefficient on the coordinator, wherein the specific information wireless transmission mode refers to the above embodiment and FIGS. 4-6, and is not described herein again.
S3, the coordinator calculates the power converted by the photovoltaic array to the standard state according to the output voltage, the current, the surface irradiation, the backboard temperature information and the power temperature coefficient through the following formula:
, each measuring unit comprises an irradiation measuring unit arranged on the photovoltaic array backboard, a temperature probe arranged on the photovoltaic array backboard, a voltage measuring unit arranged on an output circuit of the photovoltaic array and a current measuring unit arranged on the output circuit of the photovoltaic array, and the coordinator is in wireless communication connection with each measuring unit through Zigbee, WiFi or Bluetooth, wherein the Zigbee wireless communication mode is the preferred scheme.
After step S3, the following step S4 is also included: and the coordinator sends the converted photovoltaic array power in the standard state to a display unit in a wired mode or sends the converted photovoltaic array power to a remote client in a wireless mode.
The invention relates to photovoltaic array power analyzers, a power analysis system and a power analysis method, wherein each power analyzer comprises a host, a wireless irradiance sampling transmission module, a wireless temperature sampling transmission module, a wireless voltage sampling transmission module and a wireless current transmission module which are wirelessly connected with the host, the wireless irradiance sampling transmission module is used for acquiring surface irradiation of a photovoltaic array, the wireless temperature sampling transmission module is used for acquiring temperature signals, the wireless voltage sampling transmission module is used for acquiring voltage signals and the wireless current transmission module is used for acquiring current signals, the host is also provided with a component temperature coefficient input module used for inputting a power temperature coefficient, and the host calculates the power of the photovoltaic array.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes that can be directly or indirectly applied to other related technical fields using the contents of the present specification and the accompanying drawings are included in the scope of the present invention.
Claims (10)
- photovoltaic array power analyzer for analyzing power of a photovoltaic array, comprising a host (1), a wireless irradiance sampling transmission module (4), a wireless temperature sampling transmission module (5), a wireless voltage sampling transmission module (2) and a wireless current transmission module (3), wherein the wireless irradiance sampling transmission module (4), the wireless temperature sampling transmission module (5), the wireless voltage sampling transmission module (2) and the wireless current transmission module (3) are all wirelessly connected with the host (1);the wireless irradiance sampling and transmitting module (4) is connected with an irradiation measuring unit (8) arranged on the photovoltaic array backboard, the wireless temperature sampling and transmitting module (5) is connected with a temperature probe (9) arranged on the photovoltaic array backboard, the wireless voltage sampling and transmitting module (2) is connected with a voltage measuring unit (6) arranged on an output circuit of the photovoltaic array, and the wireless current transmitting module (3) is connected with a current measuring unit (7) arranged on the output circuit of the photovoltaic array;the photovoltaic array power generation system is characterized in that a component temperature coefficient input module is further arranged on the host (1), the host (1) obtains the power of the photovoltaic array according to a surface irradiation value collected by the wireless irradiance sampling transmission module (4), a temperature value collected by the wireless temperature sampling transmission module (5), a voltage value collected by the wireless voltage sampling transmission module (2), a current value collected by the wireless current transmission module (3) and a temperature coefficient input by the component temperature coefficient input module.
- 2. The photovoltaic array power analyzer of claim 1, wherein the host (1) is a Zigbee coordinator, and the wireless irradiance sampling transmission module (4), the wireless temperature sampling transmission module (5), the wireless voltage sampling transmission module (2) and the wireless current transmission module (3) are in wireless communication with the host (1) through Zigbee.
- 3. Photovoltaic array power analyzer according to claim 1, characterized in that wireless communication between the wireless irradiance sampling transmission module (4), wireless temperature sampling transmission module (5), wireless voltage sampling transmission module (2) and wireless current transmission module (3) and the host computer (1) is via WiFi or bluetooth wireless.
- 4. The photovoltaic array power analyzer of claim 1, further comprising a display unit (10) electrically connected to the host (1) for displaying the photovoltaic array power results processed by the host (1) and/orThe host (1) is also used for wirelessly communicating with or more mobile terminals (11) to send the processed photovoltaic array power results to the mobile terminals (11).
- 5. The photovoltaic array power analyzer according to claim 1, wherein the voltage measuring unit (6) is connected in parallel to an output circuit of the photovoltaic array, and the current measuring unit (7) is connected in series to the output circuit of the photovoltaic array.
- photovoltaic array power analysis system for analyzing the power of a photovoltaic array, characterized in that the power analysis system comprises an irradiation measurement unit (8) arranged on the photovoltaic array backsheet, a temperature probe (9) arranged on the photovoltaic array backsheet, a voltage measurement unit (6) arranged on the output circuit of the photovoltaic array, a current measurement unit (7) arranged on the output circuit of the photovoltaic array and a photovoltaic array power analyzer according to any of claims 1-5.
- 7. The photovoltaic array power analysis system of claim 6, further comprising one or more mobile terminals, the host (1) wirelessly communicating with the mobile terminals to send the processed photovoltaic array power results to the mobile terminals.
- 8, A method for analyzing power of a photovoltaic array, comprising the steps of:respectively collecting output voltage, current, surface irradiation and backboard temperature information of the photovoltaic array by using each measuring unit;each measuring unit is in wireless communication connection with a coordinator, the coordinator receives the output voltage, the output current, the surface irradiation and the backboard temperature information, and a power temperature coefficient is set on the coordinator;the coordinator calculates the power converted from the photovoltaic array to the standard state according to the output voltage, the current, the surface irradiation, the backboard temperature information and the power temperature coefficient by the following formula:wherein, PSTCFor converting to the photovoltaic array power under the standard state, U is the photovoltaic array output voltage, I is the photovoltaic array output current, IrrFor surface irradiation of photovoltaic arrays, T2Is the photovoltaic array backplane temperature, T1Is the standard state temperature and gamma is the power temperature coefficient.
- 9. The photovoltaic array power analysis method of claim 8, wherein the individual measurement units comprise an irradiance measurement unit disposed on the photovoltaic array backsheet, a temperature probe disposed on the photovoltaic array backsheet, a voltage measurement unit disposed on an output circuit of the photovoltaic array, and a current measurement unit disposed on the output circuit of the photovoltaic array; the coordinator is in wireless communication connection with each measuring unit through Zigbee, WiFi or Bluetooth.
- 10. The photovoltaic array power analysis method of claim 8, wherein the coordinator sends the converted photovoltaic array power to the display unit in a wired manner or sends the converted photovoltaic array power to a remote client in a wireless manner.
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| ES2848899A1 (en) * | 2020-02-12 | 2021-08-12 | Alvarez Eduardo Marcos | METHOD OF MEASUREMENT AND ANALYSIS OF THE PHOTOVOLTAIC SOLAR FIELD AND THE DEVICES USED (Machine-translation by Google Translate, not legally binding) |
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| CN104579166A (en) * | 2015-02-10 | 2015-04-29 | 河海大学常州校区 | Distributed photovoltaic power station monitoring system and fault diagnosis method thereof |
| CN106597151A (en) * | 2016-12-02 | 2017-04-26 | 中国电力科学研究院 | Method and system for testing photovoltaic plant already-operating inverter tracking efficiency |
| CN108803769A (en) * | 2017-04-27 | 2018-11-13 | 安徽华网电力设计有限公司 | The maximum power output control method and system of photovoltaic array |
| CN211577265U (en) * | 2019-10-18 | 2020-09-25 | 苏州热工研究院有限公司 | Photovoltaic array power analyzer and power analysis system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2848899A1 (en) * | 2020-02-12 | 2021-08-12 | Alvarez Eduardo Marcos | METHOD OF MEASUREMENT AND ANALYSIS OF THE PHOTOVOLTAIC SOLAR FIELD AND THE DEVICES USED (Machine-translation by Google Translate, not legally binding) |
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