CN110956414A - Wind power plant operation monitoring panel and energy efficiency evaluation system and method - Google Patents
Wind power plant operation monitoring panel and energy efficiency evaluation system and method Download PDFInfo
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Abstract
The invention relates to a wind power plant operation monitoring disc and energy efficiency evaluation system. The invention further provides a wind power plant operation monitoring and energy efficiency evaluation method. The monitoring system provided by the invention collects data of a wind turbine generator (box type transformer), a booster station, a wind measuring tower and an in-field power transmission and transformation line in a sub-module manner. Based on the collected real-time operation data, the wind power plant operation monitoring device realizes the wind power plant operation monitoring through the functions of the resource analysis module, the electric quantity analysis module and the energy efficiency analysis module in the system.
Description
Technical Field
The invention relates to a wind power plant operation monitoring system and a monitoring method.
Background
Wind energy is becoming more and more dominant in energy strategies due to its clean, renewable nature. In recent years, the wind power is slowly accelerated after being developed for a long time at a high speed, and the development of the wind power enters a new stage of being converted from a 'bold type' to a 'fine' development. Under the background of high inventory, the wind power industry focuses more on improving the overall operation energy efficiency of a wind power plant. Most of the existing wind power plant monitoring systems only aim at a fan, indexes in the system are shallow, and data cannot reflect real energy efficiency, so that the system cannot monitor the overall operation energy efficiency of the wind power plant.
In order to improve the overall operation energy efficiency of the wind power plant, it is particularly important to establish a wind power plant operation monitoring system covering a fan, a box-type transformer, a power transmission line in the plant and a booster station.
Disclosure of Invention
The purpose of the invention is: a wind power plant operation monitoring system covering a wind turbine generator, a wind measuring tower, a box type transformer, a power transmission and transformation line in a plant and a booster station is established. Another object of the present invention is to provide a disk monitoring method using the above disk monitoring system.
In order to achieve the above object, one technical solution of the present invention is to provide a wind farm operation monitoring and energy efficiency evaluation system, which is characterized by comprising a fan data acquisition server, a booster station data acquisition server, a wind measuring tower data acquisition server and an in-field power line data acquisition server, wherein the fan data acquisition server, the booster station data acquisition server, the wind measuring tower data acquisition server and the in-field power line data acquisition server upload acquired data to a first switch through an ethernet, the first switch is connected with a data forwarding server through a forward isolation network device, the data forwarding server uploads the data to the internet through a first firewall device, the second switch sequentially acquires data from the internet through a second reverse isolation network device and a second firewall device, the second switch issues the acquired data to a data access front server through the ethernet, Real-time database server, historical database server and operation supervision dish server, wherein:
acquiring second-level fan real-time operation data in a wind power plant to a fan data acquisition server;
acquiring second-level real-time data of the booster station to a booster station data acquisition server;
acquiring second-level real-time data of each layer height of the anemometer tower to a anemometer tower data acquisition server;
acquiring second-level real-time information of the transmission and transformation line in the site to a transmission line data acquisition server in the site;
the forward isolation network device can only flow from the exchanger to the data forwarding server by controlling data flow.
Preferably, the second-level fan real-time operation data is acquired to the fan data acquisition server through a Modbus protocol; second-level real-time data of the booster station are acquired to the booster station data acquisition server through a 104 protocol; second-level real-time data of each layer height of the anemometer tower are collected to the anemometer tower data collection server through a Modbus protocol; and the second-level real-time information of the power transmission and transformation line in the field is acquired to the power transmission line data acquisition server in the field through an RS232 protocol.
The invention also provides a wind power plant operation monitoring and energy efficiency evaluation method, which is characterized in that the system comprises the following steps:
step 1, a fan data acquisition server, a booster station data acquisition server, an anemometer tower data acquisition server and an in-field power transmission line data acquisition server transmit acquired second-level fan data, second-level booster station data, second-level in-field power transmission line data and second-level anemometer tower data to a data forwarding server through an Ethernet, a first switch and a forward isolation device, and define the second-level fan data, the second-level booster station data, the second-level in-field power transmission line data and the second-level anemometer tower data as second-level wind field operation data;
the machine position wind speed analysis function and the wind speed power generation amount comparison function in the resource analysis module are completed in the operation monitoring server;
the functions of analyzing the equipment power generation capacity and the ground power generation capacity and analyzing the station power generation capacity and the ground power generation capacity in the power analysis module are completed in the operation monitoring server;
and the comprehensive energy efficiency analysis function of the station and the comprehensive grading function of the wind turbine generator in the energy efficiency analysis module are completed in the operation monitoring server.
Preferably, in step 3, the station wind speed analysis function interpolates the collected wind speed of the wind measuring tower of the whole year to the free incoming wind speed at the hub height of different station points according to the difference of height, temperature and humidity, averages and processes the running wind speed of the fan corresponding to the free incoming wind speed at different moments, fits the average value and the corresponding free incoming wind speed value to obtain a cabin transfer function at each station point, and converts the running wind speed of the fan through the cabin transfer function to be used as the real-time wind speed shown in the station wind speed analysis function.
Preferably, in step 3, the wind speed and power generation amount analysis function is to draw a combined histogram of the real-time wind speed and power generation amount obtained by the station wind speed analysis function and a column broken line for displaying.
Preferably, the station comprehensive energy efficiency analysis function is used for analyzing the proportion of various loss electric quantities of the station in the generated energy, wherein the loss electric quantities comprise the loss electric quantity of the fan in the abnormal state, the power consumption of the power transmission line in the station and the power consumption of the booster station, and the final result is displayed in a bar chart.
Preferably, the calculation method of the electric quantity lost by the fan in the abnormal state is as follows:
in the formula, WiRepresents the i 10 minute loss of electricity, Wi＝Pi/6，PiRepresents the power corresponding to the real-time wind speed of 10 minutes,
Pstandard of meritIs a power value, rho, corresponding to the 10-minute real-time wind speed average value in the standard power curveStandard of meritIs the standard air density, p10Representing the actual air density, p, at the machine site10＝ρStandard of merit×BAVG÷BStandard of merit×T10，BAVGIs the annual average air pressure of the wind field, BStandard of meritIs at standard atmospheric pressure, T10The fan nacelle temperature is the 10 minute average.
Preferably, the comprehensive scoring function of the wind turbine generator is to determine a weight coefficient of a corresponding time state according to the proportions of annual operating power consumption, fault power loss, technical improvement maintenance power loss and power generation capacity of the wind turbine generator, multiply the corresponding coefficient by the corresponding state time, and add all the state times and divide the statistical cycle time to obtain a corresponding comprehensive score of the wind turbine generator.
The monitoring system provided by the invention collects data of a wind turbine generator (box type transformer), a booster station, a wind measuring tower and an in-field power transmission and transformation line in a sub-module manner. Based on the collected real-time operation data, the wind power plant operation monitoring device realizes the wind power plant operation monitoring through the functions of the resource analysis module, the electric quantity analysis module and the energy efficiency analysis module in the system.
Drawings
Fig. 1 is a structural diagram of a wind farm operation monitoring and energy efficiency evaluation system provided by the invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
In the specific embodiment of the invention, as shown in fig. 1, a wind power plant operation monitoring system is composed of a fan data acquisition server 1, a booster station data acquisition server 2, a wind measuring tower data acquisition server 3, an in-plant transmission line data acquisition server 4, an ethernet 5, a first switch 6-1, a second switch 6-2, a forward isolation network device 7, a data forwarding server 8, a first firewall device 9-1, a second firewall device 9-2, an internet 10, a reverse isolation network device 11, a data access front server 12, a real-time database server 13, a historical database server 14 and an operation monitoring server 15.
Second-level data such as second-level fan real-time operation data power, wind speed, torque, vibration and the like in the wind power plant are acquired to a fan data acquisition server 1 through a Modbus protocol. Second-level real-time data of electric quantity, on-off state, fault information and the like of the booster station are acquired to the booster station data acquisition server 2 through a 104 protocol. Real-time wind speed, wind direction, air temperature, air pressure and other second-level real-time data of each layer height of the anemometer tower are collected to the anemometer tower data collection server 3 through a Modbus protocol. The second-level real-time information of the current, the voltage, the line resistance value, the temperature of the wiring position, the resistance value of the wiring position and the like of the transmission and transformation line in the field is collected to the transmission line data collection server 4 in the field through an RS232 protocol. The fan data acquisition server 1, the booster station data acquisition server 2, the anemometer tower data acquisition server 3, the corresponding fan data acquired by the in-field power transmission line data acquisition server 4, the booster station data, the in-field power transmission line data and the anemometer tower data pass through the Ethernet 5, the first switch 6-1, the forward isolation device 7 and the data forwarding server 8. And defining the fan data, booster station data, in-site power transmission line data and anemometer tower data as second-level wind field operation data. The forward direction isolation device 7 can only play a role of safety protection by controlling the data flow to flow from the first switch 6-1 to the data forwarding server 8. All collected second-level wind farm operation data are encrypted and compressed by a data forwarding program in the data forwarding server 8, and then pass through a first firewall device 9-1, the Internet 10, a second firewall device 9-2, a reverse isolation device 11, a second switch 6-2, the Ethernet 5 and a data access front-end server 12. And the second-level wind farm operation data is subjected to decompression and decryption by a data analysis program 12 in the data access front-end server and then is transmitted to a real-time database server 13 and a historical database server 14 through Ethernet. And after the second-level wind farm operation data are sent to the historical database 14, triple backup is carried out to form wind farm operation historical data. After the processing modes of cleaning, averaging and the like of second-level wind farm operation data are carried out in the real-time database server 13, the processed data are transmitted to the operation monitoring server 15 for relevant module function calculation and page visual display.
The machine position wind speed analysis function and the wind speed power generation amount comparison function in the resource analysis module are completed in the operation monitoring server 15.
And the machine position wind speed analysis function is used for carrying out averaging processing on the fan running wind speeds corresponding to the free incoming wind speeds at different moments by interpolating the collected wind speeds of the wind measuring tower of the whole year to the free incoming wind speeds at the hub heights of different machine position points according to different heights, temperatures and humidity, and fitting the average value with the corresponding free incoming wind speed value to obtain the cabin transfer function of each machine position point. And converting the running wind speed of the fan through a cabin transfer function to be used as the real-time wind speed displayed in the machine position wind speed analysis function.
The wind speed and power generation quantity comparison function is used for displaying a columnar broken line combination diagram which is obtained by the machine position wind speed analysis function and is drawn by combining real-time wind speed and power generation quantity.
The functions of analyzing the power generation capacity and the ground power generation capacity of the equipment and analyzing the power generation capacity and the ground power generation capacity of the station in the power analysis module are completed in the operation monitoring server 15.
And the station comprehensive energy efficiency analysis function and the wind turbine generator comprehensive scoring function in the energy efficiency analysis module are completed in the operation monitoring server 15.
The station comprehensive energy efficiency analysis function is used for analyzing the proportion of various loss electric quantities of the station in the generated energy, wherein the loss electric quantities comprise the electric quantity lost by the abnormal state of the fan, the electric consumption of the power transmission line in the station and the electric consumption of the booster station. The final results are shown in bar graph.
The method for calculating the electric quantity lost in the abnormal state of the fan comprises the following steps:
in the formula, WiRepresents the i 10 minute loss of electricity, Wi＝Pi/6，PiRepresents the power corresponding to the real-time wind speed of 10 minutes,
Pstandard of meritIs a power value, rho, corresponding to the 10-minute real-time wind speed average value in the standard power curveStandard of meritIs the standard air density, p10Representing the actual air density, p, of the machine site10＝ρStandard of merit×BAVG÷BStandard of merit×T10，BAVGIs the annual average air pressure of the wind field, BStandard of meritIs at standard atmospheric pressure, T10The fan nacelle temperature is the 10 minute average.
The comprehensive grading function of the wind turbine generator is that a weight coefficient of a corresponding time state is determined according to the proportions of annual operation power consumption, fault power loss, technical improvement maintenance power loss and power generation capacity of the wind turbine generator, the corresponding coefficient is multiplied by corresponding state time, and all the state time is added and divided by statistical cycle time to obtain a corresponding comprehensive score of the wind turbine generator. Wherein the abnormal state power loss adopts the formula mentioned above.
Claims (8)
1. A wind power plant operation monitoring disc and energy efficiency evaluation system is characterized by comprising a fan data acquisition server (1), a booster station data acquisition server (2), a wind measuring tower data acquisition server (3) and an on-site power transmission line data acquisition server (4), wherein the fan data acquisition server (1), the booster station data acquisition server (2), the wind measuring tower data acquisition server (3) and the on-site power transmission line data acquisition server (4) upload acquired data to a first switch (6-1) through an Ethernet (5), the first switch (6-1) is connected with a data forwarding server (8) through a forward isolation network device (7), the data forwarding server (8) uploads the data to the Internet (10) through a first firewall device (9-1), and a second switch (6-2) sequentially passes through a reverse isolation network device (11) and the second firewall device (9-2) from the Internet (10) And acquiring data, and issuing the acquired data to a data access front server (12), a real-time database server (13), a historical database server (14) and an operation monitoring server (15) by a second switch (6-2) through the Ethernet (5), wherein:
acquiring second-level fan real-time operation data in a wind power plant to a fan data acquisition server (1);
second-level real-time data of the booster station are acquired to a booster station data acquisition server (2);
second-level real-time data of each layer height of the anemometer tower are acquired to a anemometer tower data acquisition server (3);
second-level real-time information of the transmission and transformation lines in the field is collected to a transmission line data collection server (4) in the field;
the forward direction isolation network device (7) can only flow from the first switch (6-1) to the data forwarding server (8) through controlling data flow.
2. The wind farm operation monitoring and energy efficiency evaluation system according to claim 1, wherein the second-level fan real-time operation data is acquired to the fan data acquisition server (1) through a Modbus protocol; the second-level real-time data of the booster station is acquired to the booster station data acquisition server (2) through a 104 protocol; second-level real-time data of each layer height of the anemometer tower are collected to the anemometer tower data collection server (3) through a Modbus protocol; and the second-level real-time information of the power transmission and transformation line in the field is collected to the power transmission line data collection server (4) in the field through an RS232 protocol.
3. A wind farm operation supervision and energy efficiency assessment method, characterized in that, with the system of claim 1, the method comprises the following steps:
step 1, a fan data acquisition server (1), a booster station data acquisition server (2), a wind measuring tower data acquisition server (3) and an in-field power transmission line data acquisition server (4) transmit acquired second-level fan data, second-level booster station data, second-level in-field power transmission line data and second-level wind measuring tower data to a data forwarding server (8) through an Ethernet (5), a first switch (6-1) and a forward isolation device (7), and define the second-level fan data, the second-level booster station data, the second-level in-field power transmission line data and the second-level wind measuring tower data as second-level wind field operating data;
step 2, second-level wind farm operation data are encrypted and compressed in a data forwarding server (8) through a data forwarding program, then pass through a first firewall device (9-1), the Internet (10), a second firewall device (9-2), a reverse isolation device (11), a second switch (6) and an Ethernet (5) to a data access front-end server (12), are decompressed and decrypted through a data analysis program in the data access front-end server (12), and are transmitted to a real-time database server (13) and a historical database server (14) through the Ethernet (5);
step 3, triple backup is carried out after second-level wind farm operation data are sent to a historical database (14) to form wind farm operation historical data; the second-level wind field operation data are processed in a real-time database server (13) and then transmitted to an operation monitoring server (15) to be subjected to relevant module function calculation and page visual display, wherein the relevant module function calculation comprises the following steps:
the machine position wind speed analysis function and the wind speed power generation amount comparison function in the resource analysis module are completed in the operation monitoring server (15);
the functions of analyzing the equipment power generation capacity and the ground power generation capacity in the power analysis module and analyzing the station power generation capacity and the ground power generation capacity are completed in the operation monitoring server (15);
and the station comprehensive energy efficiency analysis function and the wind turbine generator comprehensive scoring function in the energy efficiency analysis module are completed in the operation monitoring server (15).
4. A wind farm operation monitoring and energy efficiency assessment method according to claim 3, wherein in step 3, the machine location wind speed analysis function interpolates free incoming wind speeds at different machine location hub heights according to different heights, temperatures and humidities through collected wind speed of a wind tower of the whole year, averages and processes fan operating wind speeds corresponding to the free incoming wind speeds at different times, fits the average value with the corresponding free incoming wind speed value to obtain a cabin transfer function at each machine location, and converts the fan operating wind speeds through the cabin transfer function to be used as real-time wind speeds displayed in the machine location wind speed analysis function.
5. The wind farm operation monitoring and energy efficiency assessment method according to claim 3, wherein in step 3, the wind speed and power generation amount analysis function is to draw a histogram and polyline combination graph for displaying the real-time wind speed and power generation amount obtained by the machine position wind speed analysis function.
6. A wind farm operation monitoring and energy efficiency assessment method according to claim 3, wherein in step 3, the station comprehensive energy efficiency analysis function is to analyze the proportion of various loss electric quantities of the station in the generated energy, wherein the loss electric quantities include the abnormal state loss electric quantity of the wind turbine, the power consumption of the transmission line in the plant and the power consumption of the booster station, and the final result is displayed in a bar chart.
7. The wind power plant operation monitoring and energy efficiency assessment method according to claim 6, wherein the calculation mode of the electric quantity lost by the fan in the abnormal state is as follows:
in the formula, WiRepresents the i 10 minute loss of electricity, Wi＝Pi/6，PiRepresents the power corresponding to the real-time wind speed of 10 minutes,
Pstandard of meritIs a power value, rho, corresponding to the 10-minute real-time wind speed average value in the standard power curveStandard of meritIs the standard air density, p10Representing the actual air density, p, of the machine site10＝ρStandard of merit×BAVG÷BStandard of merit×T10，BAVGIs the annual average air pressure of the wind field, BStandard of meritIs at standard atmospheric pressure, T10The fan nacelle temperature is the 10 minute average.
8. The wind farm operation supervision and energy efficiency assessment method according to claim 6, characterized in that the wind turbine comprehensive scoring function is to determine a weight coefficient of a corresponding time state according to the ratio of the annual unit operation power consumption, the fault power loss, the technical improvement and repair power loss and the power generation amount, multiply the corresponding coefficient by the corresponding state time, and add all the state times and divide the statistical cycle time to obtain a corresponding unit comprehensive score.
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