Performance test method and system for new energy primary frequency modulation device

Abstract

The present invention belongs to the technical field of primary frequency modulation device performance testing, and provides a new energy primary frequency modulation device performance testing method and system. By means of a simulation environment, the frequency and active power of the new energy primary frequency modulation device adjustment instruction in the new energy power generation equipment are tested and judged, which can meet the purpose of prior detection. If it is detected that the performance of the tested equipment is poor, effective prevention measures can be taken in advance, and reliable data is provided for procurement; at the same time, when testing and judging, the power contribution rate and the electric power contribution rate are determined by the obtained frequency and active power; and the average contribution rate during the primary frequency modulation crossing the dead zone action is obtained by the weighted average of the power contribution rate and the electric power contribution rate; according to the power contribution rate, the electric power contribution rate and the weighted average contribution rate, the qualification judgment of the new energy frequency modulation event is carried out, the power and active output factors are comprehensively considered, and the accuracy and comprehensiveness of the performance judgment are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of primary frequency modulation device performance testing, and in particular, relates to a new energy primary frequency modulation device performance testing method and system. Background Art

[0002] Conventional non-grid-based new energy power generation units are different from traditional thermal power units. They do not have inertial response and auxiliary frequency regulation capabilities. Their large-scale access will reduce the inertia of the power system, weaken the frequency regulation capability of the power grid, and bring uncertainties to the safe and stable operation of the power system. Under the guidance of relevant standards, each new energy station has carried out a frequency regulation performance transformation. The main technical path is to collect the grid frequency at the station end by installing a primary frequency regulation device, calculate and analyze the adjustment value of the active output of the whole field, and control the wind turbine or photovoltaic inverter to change the active output value, thereby playing a role in regulating the grid frequency.

[0003] The inventors found that the traditional method for conducting performance testing of new energy primary frequency modulation devices is to simulate the frequency change of the power grid by applying a simulated voltage value of frequency change to its test board or acquisition channel after the primary frequency modulation device is put into use on site, and at the same time, collect voltage and current values ​​at the grid connection point of the new energy station or the high-voltage side of the step-up transformer to calculate the active output change of the new energy station, thereby calculating and evaluating the performance of the new energy primary frequency modulation device. The above-mentioned traditional method belongs to in-process detection. If it is detected that the performance of the tested equipment is poor and does not meet the requirements of relevant standards, it is difficult to take effective preventive measures against it, resulting in the difficulty in mastering the performance quality of the new energy primary frequency modulation device, which has caused great management pressure on the new energy station and the power grid company that purchased the device; and when judging the performance of the primary frequency modulation device, the method of judging the size of the power contribution rate and the electric power contribution rate respectively is adopted. If any indicator is not met, it is deemed to be an unqualified action. This method considers the power and active output factors independently without comprehensive consideration, resulting in incomplete performance judgment accuracy, affecting the judgment accuracy. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a new energy primary frequency modulation device performance testing method and system, which tests and judges the frequency and active power of the adjustment instructions of the new energy primary frequency modulation device to be tested in the new energy power generation equipment in a simulation environment, which can meet the purpose of prior detection; at the same time, according to the power contribution rate, power contribution rate and weighted average contribution rate, the qualification of the new energy frequency modulation event is judged, and the power and active output factors are comprehensively considered, thereby improving the accuracy and comprehensiveness of performance judgment.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In a first aspect, the present invention provides a method for testing the performance of a new energy primary frequency modulation device, comprising:

[0007] Obtaining the regulation command signal of the primary frequency regulation device of the new energy source to be tested;

[0008] The adjustment command signal is transmitted to a preset semi-physical simulator to obtain the frequency and active power of the new energy power generation equipment in the simulation environment;

[0009] The power contribution rate and the electric power contribution rate are determined by the obtained frequency and active power; and the average contribution rate during the period of frequency modulation crossing the dead zone is obtained by the weighted average of the power contribution rate and the electric power contribution rate;

[0010] The eligibility of renewable energy frequency modulation events is judged based on the electricity contribution rate, power contribution rate and weighted average contribution rate.

[0011] Furthermore, the power contribution rate is equal to the ratio of the actual contribution power to the theoretical integrated power; the power contribution rate is equal to the ratio of the actual maximum active output to the theoretical maximum active output during the period of primary frequency regulation crossing the dead zone.

[0012] Furthermore, the actual contribution power is the primary frequency modulation contribution power:

[0013] ;

[0014] in, For the crew The primary frequency modulation contribution power; The system frequency exceeds the unit The moment of dead zone of a frequency modulation action; Enter the unit for system frequency The moment of dead zone of a frequency modulation action; for Time crew The actual generated active power.

[0015] Furthermore, when a frequency regulation event process simultaneously satisfies the conditions that the electricity contribution rate, the power contribution rate, and the weighted average contribution rate are all not less than the corresponding preset values, it is judged as a qualified new energy frequency regulation event; otherwise, it is judged as an unqualified new energy frequency regulation event.

[0016] Furthermore, the weighted average contribution rate is:

[0017] ;

[0018] in, △Q % is the primary frequency regulation power contribution rate; △P % is the primary frequency regulation power contribution rate; and is the weight value; and is the error adjustment factor.

[0019] Furthermore, the test signal is sent to the new energy primary frequency modulation device to be tested at the new energy station side through wireless remote transmission; the adjustment command signal is obtained according to the test signal and the new energy primary frequency modulation device to be tested; the adjustment command signal is transmitted to a preset semi-physical simulator to obtain the frequency and active power of the new energy power generation equipment in the simulation environment.

[0020] Furthermore, when the test signal is sent remotely by wireless, the data is encrypted by the preset longitudinal encryption device, and the encrypted data is remotely transmitted to the preset longitudinal decryption device on the new energy station side via the preset router for technical decryption. The decrypted data is sent to the new energy primary frequency modulation device via the data switch by the synchronous vector measurement device preset on the station side; the analog voltage quantity is replaced by a communication message, and the frequency combination of the test signal itself does not change.

[0021] In a second aspect, the present invention also provides a new energy primary frequency modulation device performance test system, comprising:

[0022] The data acquisition module is configured to: obtain a regulation command signal of a primary frequency modulation device of a new energy source to be tested;

[0023] The simulation module is configured to: transmit the adjustment command signal to a preset semi-physical simulator to obtain the frequency and active power of the new energy power generation equipment in the simulation environment;

[0024] The contribution value module is configured to: determine the power contribution rate and the electric power contribution rate by the obtained frequency and active power; and obtain the average contribution rate during the period of frequency modulation crossing the dead zone by the weighted average of the power contribution rate and the electric power contribution rate;

[0025] The judgment module is configured to make a qualification judgment on the frequency modulation event of the renewable energy according to the power contribution rate, the electricity contribution rate and the weighted average contribution rate.

[0026] In a third aspect, the present invention further provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein when the processor executes the program, the steps of the performance test method of the new energy primary frequency modulation device described in the first aspect are implemented.

[0027] In a fourth aspect, the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps of the new energy primary frequency modulation device performance test method described in the first aspect are implemented.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In the present invention, with the help of a simulation environment, the frequency and active power of the adjustment instructions of the primary frequency modulation device of the new energy to be tested are tested and judged in the new energy power generation equipment, which can meet the purpose of prior detection. For example, when it is detected that the performance of the tested equipment is poor, effective prevention measures can be taken in advance, providing reliable data for procurement; at the same time, when testing and judging, the power contribution rate and the electric power contribution rate are determined by the obtained frequency and active power; and the average contribution rate during the primary frequency modulation action across the dead zone is obtained by the weighted average of the power contribution rate and the electric power contribution rate; according to the power contribution rate, the electric power contribution rate and the weighted average contribution rate, the qualification of the new energy frequency modulation event is judged, the power and active output factors are comprehensively considered, and the accuracy and comprehensiveness of the performance judgment are improved.

[0030] 2. Through the design of the technical solution of the present invention, one-stop work of network access testing, application testing, and master station access can be achieved, and the performance test of the new energy primary frequency modulation device and the master station access work cycle can be shortened from seven days to three hours at the fastest.

[0031] 3. The present invention is combined with a semi-physical simulation platform to carry out grid-connected test projects such as a frequency modulation dead zone test, a frequency step disturbance test, a simulated power grid frequency disturbance test, and an automatic power generation control system control coordination test.

[0032] 4. The present invention is connected to the dispatching data network to remotely realize the remote online performance test of the new energy primary frequency modulation device. It is no longer necessary for test personnel to conduct on-site additional tests, which avoids the natural resource limitations during the on-site testing process to the greatest extent. For example, insufficient on-site testing conditions due to weak wind resources or weak light, etc., greatly saving the management costs of the testing unit and the cooperating testing unit.

[0033] 5. The present invention can support power grid dispatching organizations to more conveniently carry out the performance assessment of new energy primary frequency regulation, avoid the inspected units from temporarily modifying the device setting parameters to meet performance requirements, and improve the level of active support management of regional power grid frequency.

[0034] 6. After the traditional new energy primary frequency regulation performance test is completed on-site, the new energy station needs to communicate with the new energy primary frequency regulation master station for point-to-point debugging before the new energy primary frequency regulation capability of the station can be included in the professional management of the regional power grid dispatching organization; however, through the present invention, the new energy station will no longer need to communicate with the new energy primary frequency regulation master station for point-to-point debugging, and can be directly connected to the new energy primary frequency regulation master station after the test is passed, which greatly shortens the management time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings in the specification that constitute a part of this embodiment are used to provide a further understanding of this embodiment. The schematic embodiments of this embodiment and their descriptions are used to explain this embodiment and do not constitute improper limitations on this embodiment.

[0036] Figure 1 This is a system architecture diagram of Embodiment 1 of the present invention;

[0037] Figure 2 This is a key flow chart of the test method of Example 1 of the present invention;

[0038] Figure 3 This is a system architecture diagram of Embodiment 2 of the present invention;

[0039] Figure 4 This is a key flow chart of the testing method of Example 3 of the present invention. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0042] Embodiment 1:

[0043] This embodiment provides a performance test method for a new energy primary frequency regulation device, which belongs to a pre-test. Through this test method, the performance of the new energy primary frequency regulation device can be evaluated before it is connected to the grid and used, which can effectively improve the professional management level of primary frequency regulation of new energy sites and prevent unqualified products from entering the market.

[0044] In order to implement the method, this embodiment also provides a new energy primary frequency modulation device performance test system, such as Figure 1 As shown, it mainly includes the master station system, basic hardware platform and semi-physical simulator.

[0045] The master station system mainly includes the master and substation communication function modules, the primary frequency modulation online monitoring and index calculation module, and the primary frequency modulation display and statistical analysis interface. The master and substation communication function modules include sub-process 1, sub-process 2, sub-process 3 and sub-process 4 sub-processes. Sub-process 1 is used to query the active primary frequency modulation preparation status of the substation, sub-process 2 is used to send the frequency adjustment test file, sub-process 3 is used to send the primary frequency modulation test command, and sub-process 4 is used to execute the active primary frequency modulation test command.

[0046] The main function of the primary frequency regulation online monitoring and index calculation module is to calculate the power contribution rate and electricity contribution rate of the semi-physical simulator during the actual primary frequency regulation after the new energy primary frequency regulation device starts to operate, as well as the primary frequency regulation weighted average contribution rate calculation method based on the power contribution rate and electricity contribution rate. The specific calculation formula is:

[0047] The integral of actual active power over time is the actual contribution power, and the ratio of actual active power to theoretical integral power is the power contribution rate:

[0048] ;

[0049] in, For the crew The primary frequency modulation contribution power; The system frequency exceeds the unit The moment of dead zone of a frequency modulation action; Enter the unit for system frequency The moment of dead zone of a frequency modulation action; for Time crew Actual active power generated; It is the active power before the unit frequency crosses the dead zone.

[0050] ;

[0051] in, △Q % is the primary frequency regulation power contribution rate; △QE The actual power contribution for a frequency modulation, optional power contribution for a frequency modulation ; △QS The theoretical integral power of a frequency regulation; optional, power contribution rate of wind farms and photovoltaic power stations △Q If % is less than 90%, the action is unqualified.

[0052] During the period when the primary frequency modulation crosses the dead zone, the ratio of the actual maximum active output to the theoretical maximum active output is the power contribution rate:

[0053] ;

[0054] in, △P % is the primary frequency regulation power contribution rate; △P E It is the actual maximum active output of primary frequency regulation; △P S The maximum active power output of primary frequency regulation theory; for wind farms and photovoltaic power stations, the power contribution rate is △ P If % is less than 70%, the action is unqualified.

[0055] In this embodiment, the power and active output factors are comprehensively considered to improve the comprehensiveness and accuracy of performance judgment. Specifically, during the period when the primary frequency modulation crosses the dead zone, the average contribution rate is obtained by solving the weighted average of the power contribution rate and the power contribution rate of the new energy unit:

[0056] ;

[0057] in, △A % is the weighted average contribution rate of primary frequency modulation; △Q % is the primary frequency regulation power contribution rate; △P %Contribution rate of primary frequency regulation power; and is the weight value, optional, =56%, =44%. Optional: for wind farms and photovoltaic power stations, the weighted average contribution rate Less than 80% means the action is unqualified.

[0058] A frequency regulation event process must simultaneously meet the requirements of a power contribution rate of no less than 90%, an electricity contribution rate of no less than 70%, and a weighted average contribution rate of no less than 80% to be considered a qualified new energy frequency regulation event.

[0059] In actual testing, when the semi-physical simulator is used to determine the quality of the electricity contribution rate, power contribution rate and weighted average contribution rate, there is a certain error between the data obtained in the simulation environment and the data obtained in the actual field test. In order to avoid this error, when calculating the electricity contribution rate, power contribution rate and weighted average contribution rate, an error adjustment coefficient is added to make the electricity contribution rate, power contribution rate and weighted average contribution rate obtained in the simulation environment as close as possible to the data obtained in the field environment. Optional:

[0060] ;

[0061] ;

[0062] ;

[0063] in, and The error adjustment coefficient can be determined and updated through historical data. For example, the error adjustment coefficient is equal to the ratio of the measured value in the actual environment to the measured value in the simulation environment. When calculating, the average of the measured values ​​in multiple actual environments and the average of the measured values ​​in multiple simulation environments are used to determine and update the error adjustment coefficient to ensure the accuracy of the error adjustment coefficient.

[0064] The primary frequency regulation display and statistical analysis interface mainly includes two parts: new energy primary frequency regulation assessment, and primary frequency regulation active online test statistics and analysis. Among them, the new energy primary frequency regulation assessment part includes unit operation monitoring function, curve query, single statistics, monthly statistics, frequency regulation event list and parameter setting, etc.; the frequency regulation active online test statistics and analysis part includes operation monitoring, unit dynamic monitoring and active test interface, curve query, assessment statistics-single statistics, assessment statistics-monthly statistics, substation configuration and parameter setting-frequency regulation parameters, etc.

[0065] The single machine of this embodiment can carry out type test items such as device appearance and human-machine interface inspection of the primary frequency modulation device, data storage, fixed value modification, recording and file transfer functions, time synchronization, client and server functions, signal testing, primary frequency modulation frequency accuracy test, primary frequency modulation anti-disturbance performance verification test, primary frequency modulation single short-circuit fault avoidance function, primary frequency modulation online monitoring operation logic test, primary frequency modulation function locking test, primary frequency modulation and synchronous vector measurement device information interaction test.

[0066] The hardware platform mainly includes a new energy primary frequency modulation master station simulation system, a new energy primary frequency modulation station-end simulation system, a broadband measurement processing unit, a broadband measurement device, and a new energy primary frequency modulation device.

[0067] The semi-physical simulator mainly includes workstations, racks, processor cards, I / O interface cards, inter-rack communication cards IRC (Inter-Rack Communication Card), workstation interface cards WIF (WorkstationInterface Card), optical isolation cards OIC (Optical Isolation System), etc. The processor cards include 3PC (Triple Processor Card) and GPC (Giga Processor Card).

[0068] The processing power of the processor card has gradually increased from 3PC card (with ADSP21064 as the core processor) to GPC card (with IBM PPC750GX as the core processor). Among them, the computing speed of the GPC card reaches Gigabit. The processor card is the most critical hardware of the real-time digital simulator RTDS (Real-time Digital Simulator). The function of the workstation interface card is to process the data exchange between the RTDS simulation device and the workstation; the workstation interface card WIF is based on the M68020 processor. The inter-cabinet communication card IRC is mainly responsible for processing the data exchange between cabinets. The optical isolation OIC card provides 16 analog input and output channels and 32-bit digital input and output channels, which are the channels that RTDS must pass through for exchanging with the outside world.

[0069] In this embodiment, Figure 1 As shown, the main control process of the system includes the control instruction issuing process and the signal feedback process. Among them, when the control instruction issuing process is executed, the remote test module of the new energy primary frequency modulation master station simulation system issues a test curve, and the test signal in the test curve is first sent to the broadband measurement processing unit, and then forwarded to the new energy primary frequency modulation device, which calculates and processes it, and then sends the active adjustment instruction to the semi-physical simulator for execution, thereby completing a complete control instruction issuing process; when the signal feedback process is executed, the semi-physical simulator sends the result after the instruction is executed to the broadband measurement device, and the broadband measurement device encrypts the signal format and forwards it to the broadband measurement processing unit for data validity analysis. After the analysis is passed, the broadband measurement processing unit forwards the data to the new energy primary frequency modulation station-side simulation system, and synchronously feeds back to the new energy primary frequency modulation master station simulation system.

[0070] Based on the new energy primary frequency modulation device performance test system, the new energy primary frequency modulation device performance test method in this embodiment can also carry out remote online testing of new energy primary frequency modulation, replacing the traditional on-site testing method of applying a simulated voltage value of frequency change on the primary frequency modulation device test board or acquisition channel to simulate the frequency change of the power grid.

[0071] Optionally, the remote online test of the primary frequency modulation of new energy sources uses a wide area measurement system (WAMS) to encrypt the test signal on site through a longitudinal encryption device. The encrypted data is remotely transmitted to the longitudinal decryption device on the new energy station side via a router for technical decryption. The decrypted data is sent to the new energy primary frequency modulation device via a data switch by a synchronous vector measurement device (Phasor Measurement Unit, PMU) on the station side. The analog voltage quantity is replaced by a communication message, and the frequency combination of the test signal itself is not changed. In order to enable the test system and the primary frequency modulation device on the station side to accurately identify the primary frequency modulation remote test instructions, the communication protocol data frame in this embodiment uses the following format:

[0072] The data frame format is specifically 2 bytes of binary synchronization command code + 16 bytes of binary device address code + 4 bytes of binary device clock status code + 2 bytes of binary test instruction code + 6 bytes of binary test instruction value code + 2 bytes of binary check code. The specific meaning is shown in Table 1.

[0073] Table 1 Frame byte definition

[0074]

[0075] like Figure 2 As shown in the figure, the remote online test of new energy primary frequency regulation mainly relies on the performance test master station system of new energy primary frequency regulation device, vertical encryption and decryption device, dispatching data network, new energy field station primary frequency regulation device and new energy power generation equipment; energy power generation equipment refers to wind turbines or photovoltaic inverters. Remote online testing mainly includes the control command issuance process and signal feedback process.

[0076] When the control instruction issuance process is executed, the remote test module of the new energy primary frequency modulation master station simulation system sends a test signal, which is forwarded to the dispatching data network WAMS system. The test signal is then encrypted by the longitudinal encryption device according to the defined data frame format, and then transmitted to the remote new energy primary frequency modulation device through the synchronous vector measurement device (PMU). After the new energy primary frequency modulation device calculates and processes, it will give the active adjustment instruction to the new energy power generation equipment for execution, thus completing a complete control instruction issuance process. When the signal feedback process is executed, the synchronous vector measurement device (PMU) collects the key information generated at the grid connection point of the new energy station or the high-voltage side of the step-up transformer after the execution of the new energy power generation equipment instruction, such as frequency and active power, and transmits it to the WAMS system through the dispatching data network. The WAMS system then gives the feedback signal to the new energy primary frequency modulation master station simulation system, thus completing a complete signal feedback process.

[0077] Embodiment 2:

[0078] like Figure 3 As shown, this embodiment provides a new energy primary frequency modulation device performance test system. Different from Embodiment 1, the hardware platform in this embodiment includes a new energy primary frequency modulation master station simulation system, a new energy primary frequency modulation station-end simulation system, a broadband measurement processing unit, a broadband measurement device, a new energy primary frequency modulation device, and an integrated controller.

[0079] The main function of the integrated controller is to perform multi-protocol analysis on the test instructions issued by the new energy primary frequency modulation master station simulation system; it can test different types of new energy primary frequency modulation devices. After adding the integrated controller, the main control flow of the hardware platform becomes:

[0080] When the control instruction issuing process is executed, the remote test module of the new energy primary frequency regulation master station simulation system issues a test curve. The test signal in the test curve is first analyzed by the integrated controller, and then the control instruction is forwarded to the new energy primary frequency regulation device. After calculation and processing by the new energy primary frequency regulation device, the active adjustment instruction is given to the semi-physical simulator for execution, thereby completing a complete control instruction issuing process; when the signal feedback process is executed, the semi-physical simulator sends the result after the instruction execution to the broadband measurement device. The broadband measurement device encrypts the signal format and forwards it to the broadband measurement processing unit for data validity analysis. After the analysis is passed, the broadband measurement processing unit forwards the data to the new energy primary frequency regulation station-end simulation system, and synchronously feeds back to the new energy primary frequency regulation master station simulation system.

[0081] Embodiment 3:

[0082] like Figure 4 As shown, this embodiment provides a method for testing the performance of a new energy primary frequency modulation device. Different from Embodiment 1, the key path of the method in this embodiment is:

[0083] The online test is realized by relying on the main station system for the performance test of the new energy primary frequency regulation device, the integrated controller, the new energy station primary frequency regulation device and the new energy power generation equipment. The remote online test control command issuance process and signal feedback process are changed as follows:

[0084] When the control instruction issuance process is executed, the remote test module of the new energy primary frequency regulation master station simulation system sends a test signal, and the test signal is directly transmitted to the integrated controller of the remote new energy site through the dispatching data network. The integrated controller parses the command message and transmits the data to the new energy primary frequency regulation device. After calculation and processing by the new energy primary frequency regulation device, the active power regulation instruction is given to the new energy power generation equipment for execution, thus completing a complete control instruction issuance process; when the signal feedback process is executed, the synchronous vector measurement device (PMU) collects the key information generated at the grid connection point of the new energy site or the high-voltage side of the step-up transformer after the execution of the new energy power generation equipment instruction, and transmits it to the WAMS system through the dispatching data network. The WAMS system then gives the feedback signal to the new energy primary frequency regulation master station simulation system, thus completing a complete signal feedback process.

[0085] From the description of the modified process in this embodiment, it can be seen that the main change is that the control instructions are no longer issued through the WAMS system, but the integrated controller at the new energy station directly communicates with the new energy primary frequency regulation master station simulation system.

[0086] Embodiment 4:

[0087] This embodiment provides a new energy primary frequency modulation device performance test system, including:

[0088] The data acquisition module is configured to: obtain a regulation command signal of a primary frequency modulation device of a new energy source to be tested;

[0089] The simulation module is configured to: transmit the adjustment command signal to a preset semi-physical simulator to obtain the frequency and active power of the new energy power generation equipment in the simulation environment;

[0090] The contribution value module is configured to: determine the power contribution rate and the electric power contribution rate by the obtained frequency and active power; and obtain the average contribution rate during the period of frequency modulation crossing the dead zone by the weighted average of the power contribution rate and the electric power contribution rate;

[0091] The judgment module is configured to make a qualification judgment on the frequency modulation event of the renewable energy according to the power contribution rate, the electricity contribution rate and the weighted average contribution rate.

[0092] The working method of the system is the same as the performance test method of the new energy primary frequency modulation device in Example 1, and will not be repeated here.

[0093] Embodiment 5:

[0094] This embodiment provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor. When the processor executes the program, the steps of the new energy primary frequency modulation device performance test method described in Example 1 are implemented.

[0095] Embodiment 6:

[0096] This embodiment provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps of the new energy primary frequency modulation device performance testing method described in Example 1 are implemented.

[0097] The above description is only a preferred embodiment of the present embodiment and is not intended to limit the present embodiment. For those skilled in the art, the present embodiment may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment shall be included in the protection scope of the present embodiment.

Claims

1. A performance test method for a new energy primary frequency modulation device, characterized in that: include: Obtaining the regulation command signal of the primary frequency regulation device of the new energy source to be tested; The adjustment command signal is transmitted to a preset semi-physical simulator to obtain the frequency and active power of the new energy power generation equipment in the simulation environment; The power contribution rate and the electric power contribution rate are determined by the obtained frequency and active power; and the average contribution rate during the period of frequency modulation crossing the dead zone is obtained by the weighted average of the power contribution rate and the electric power contribution rate; According to the electricity contribution rate, power contribution rate and weighted average contribution rate, the qualification of the new energy frequency modulation event is judged; The semi-physical simulator is used to determine the quality of the electricity contribution rate, power contribution rate and weighted average contribution rate. When calculating the electricity contribution rate, power contribution rate and weighted average contribution rate, an error adjustment coefficient is added. The error adjustment coefficient is determined and updated through historical data. When calculating, the average of the measured values ​​in several actual environments and the average of the measured values ​​in several simulation environments are used to determine and update the error adjustment coefficient. The weighted average contribution rate is: ； in, △Q % is the primary frequency regulation power contribution rate; △P % is the primary frequency regulation power contribution rate; and is the weight value; and is the error adjustment coefficient; The test signal is sent to the new energy primary frequency modulation device to be tested at the new energy station side by wireless remote transmission; the adjustment command signal is obtained according to the test signal and the new energy primary frequency modulation device to be tested; the adjustment command signal is transmitted to the preset semi-physical simulator to obtain the frequency and active power of the new energy power generation equipment in the simulation environment; When the test signal is sent remotely by wireless, the data is encrypted through the preset longitudinal encryption device. The encrypted data is remotely transmitted to the preset longitudinal decryption device on the new energy station side via the preset router for technical decryption. The decrypted data is sent to the new energy primary frequency modulation device via the data switch by the synchronous vector measurement device preset on the station side. The analog voltage quantity is replaced by a communication message, and the frequency combination of the test signal itself does not change.

2. The performance test method of the new energy primary frequency modulation device according to claim 1, characterized in that: The power contribution rate is equal to the ratio of the actual contribution power to the theoretical integrated power; the power contribution rate is equal to the ratio of the actual maximum active output to the theoretical maximum active output during the period when the primary frequency regulation crosses the dead zone.

3. The performance test method of the new energy primary frequency modulation device according to claim 2, characterized in that: The actual contribution power is the primary frequency modulation contribution power: ； in, For the crew The primary frequency modulation contribution power; The system frequency exceeds the unit The moment of dead zone of a frequency modulation action; Enter the unit for system frequency The moment of dead zone of a frequency modulation action; for Time crew The actual generated active power.

4. The performance test method of the new energy primary frequency modulation device according to claim 1, characterized in that: When a frequency modulation event process simultaneously satisfies the conditions that the electricity contribution rate, power contribution rate, and weighted average contribution rate are all not less than the corresponding preset values, it is judged as a qualified new energy frequency modulation event; otherwise, it is judged as an unqualified new energy frequency modulation event.

5. New energy primary frequency modulation device performance test system, characterized in that: include: The data acquisition module is configured to: obtain a regulation command signal of a primary frequency modulation device of a new energy source to be tested; The simulation module is configured to: transmit the adjustment command signal to a preset semi-physical simulator to obtain the frequency and active power of the new energy power generation equipment in the simulation environment; The contribution value module is configured to: determine the power contribution rate and the electric power contribution rate by the obtained frequency and active power; and obtain the average contribution rate during the period of frequency modulation crossing the dead zone by the weighted average of the power contribution rate and the electric power contribution rate; The judgment module is configured to: judge the eligibility of the new energy frequency modulation event according to the power contribution rate, the electricity contribution rate and the weighted average contribution rate; The semi-physical simulator is used to determine the quality of the electricity contribution rate, power contribution rate and weighted average contribution rate. When calculating the electricity contribution rate, power contribution rate and weighted average contribution rate, an error adjustment coefficient is added. The error adjustment coefficient is determined and updated through historical data. When calculating, the average of the measured values ​​in several actual environments and the average of the measured values ​​in several simulation environments are used to determine and update the error adjustment coefficient. The weighted average contribution rate is: ； in, △Q % is the primary frequency regulation power contribution rate; △P % is the primary frequency regulation power contribution rate; and is the weight value; and is the error adjustment coefficient; The test signal is sent to the new energy primary frequency modulation device to be tested at the new energy station side by wireless remote transmission; the adjustment command signal is obtained according to the test signal and the new energy primary frequency modulation device to be tested; the adjustment command signal is transmitted to the preset semi-physical simulator to obtain the frequency and active power of the new energy power generation equipment in the simulation environment; When the test signal is sent remotely by wireless, the data is encrypted through the preset longitudinal encryption device. The encrypted data is remotely transmitted to the preset longitudinal decryption device on the new energy station side via the preset router for technical decryption. The decrypted data is sent to the new energy primary frequency modulation device via the data switch by the synchronous vector measurement device preset on the station side. The analog voltage quantity is replaced by a communication message, and the frequency combination of the test signal itself does not change.

6. The new energy primary frequency modulation device performance test system as claimed in claim 5, characterized in that: The power contribution rate is equal to the ratio of the actual contribution power to the theoretical integrated power; the power contribution rate is equal to the ratio of the actual maximum active output to the theoretical maximum active output during the period when the primary frequency regulation crosses the dead zone.

7. The new energy primary frequency modulation device performance test system as claimed in claim 6, characterized in that: The actual contribution power is the primary frequency modulation contribution power: ； in, For the crew The primary frequency modulation contribution power; The system frequency exceeds the unit The moment of dead zone of a frequency modulation action; Enter the unit for system frequency The moment of dead zone of a frequency modulation action; for Time crew The actual generated active power.

8. The new energy primary frequency modulation device performance test system as claimed in claim 5, characterized in that: When a frequency modulation event process simultaneously satisfies the conditions that the electricity contribution rate, power contribution rate, and weighted average contribution rate are all not less than the corresponding preset values, it is judged as a qualified new energy frequency modulation event; otherwise, it is judged as an unqualified new energy frequency modulation event.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, characterized in that: When the processor executes the program, the steps of the new energy primary frequency regulation device performance testing method as described in any one of claims 1-4 are implemented.

10. A computer program product, characterized in that The computer program product includes a computer program, and when the computer program is executed by a processor, the steps of the new energy primary frequency regulation device performance testing method as described in any one of claims 1 to 4 are implemented.

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