An optimization method, system, medium and equipment for high and low voltage ride-through test of a wind turbine

Abstract

The present invention discloses an optimization method, system, medium and equipment for high and low voltage ride-through testing of a wind turbine. The method monitors the wind speed of the upwind wind turbine, eliminates time difference calculation and uses the least square method to find the best function match between it and the wind speed of the test unit, thereby predicting whether the wind energy condition of the test unit meets the test conditions of high and low voltage ride-through, and selecting the time node for high and low voltage ride-through testing accordingly, so as to make full use of the wind speed section that meets the test conditions for testing. The present invention avoids the situation that it is impossible to determine whether the wind energy after the high and low voltage starts to meet the test conditions due to the volatility and intermittency of wind energy, which easily leads to test failure, speeds up the test progress and reduces the test cost.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine grid-connected testing, and in particular to an optimization method, system, medium and equipment for wind turbine high and low voltage ride-through testing. Background Art

[0002] High and low voltage ride-through capability refers to the ability of wind turbines or photovoltaic power generation systems to operate continuously and support grid recovery when the grid voltage drops or rises to a certain value; wind turbines with ride-through capability can reduce the number of repeated grid connection during grid failures and reduce the impact on the grid. In recent years, the large-scale access of new energy power to the grid has had an increasing impact on the grid. It is necessary to test the grid connection performance indicators of new energy power stations to ensure the complete and stable operation of the grid.

[0003] However, due to the volatility and intermittency of wind energy, it is impossible to determine whether the wind energy meets the test conditions after the high and low voltages start, which can easily lead to test failures, bring great difficulties to the test work, seriously affect the test progress, and consume a lot of manpower and material resources. Summary of the invention

[0004] The first purpose of the present invention is to solve the deficiencies in the prior art and provide an optimization method for high and low voltage ride-through testing of wind turbines. By monitoring the wind speed of the upwind wind turbine, the least squares method is used to find the optimal function match between it and the wind speed of the test unit, and then predict whether the wind energy conditions of the test unit meet the test conditions for high and low voltage ride-through, and select the time nodes for high and low voltage ride-through testing accordingly, making full use of the wind speed segments that meet the test conditions for testing.

[0005] The second object of the present invention is to provide a wind turbine high and low voltage ride through test system.

[0006] A third object of the present invention is to provide a non-transitory computer-readable medium.

[0007] A fourth object of the present invention is to provide a computing device.

[0008] The first object of the present invention is achieved by the following technical solution: A method for optimizing high and low voltage ride-through tests of a wind turbine, comprising the following steps:

[0009] S1. Obtain the wind speed data of the upwind wind turbine of the test wind turbine in the wind direction, and set the corresponding qualified wind speed range according to the wind speed-power characteristic curves of different wind turbine models and the test requirements of high and low voltage ride-through;

[0010] S2. Perform calculations to eliminate the time difference based on the obtained wind speed data and the qualified wind speed range, and use the least squares method to calculate the best matching function of the wind speeds of the upwind wind turbine and the test wind turbine;

[0011] S3. The wind turbine that has completed networking obtains the wind speed of the wind turbine in the upwind direction in real time through the switch of the test wind turbine, calculates the real-time wind speed of the test wind turbine through the wind speed best matching function and calculates the time difference between the upwind wind turbine and the test wind turbine, and judges whether the wind energy condition of the test wind turbine meets the test conditions of high and low voltage ride-through according to the real-time wind speed of the upwind wind turbine. If it meets the test conditions, a signal that the test conditions are met is issued and the time when the signal is issued is recorded; if it does not meet the test conditions, the timing is stopped;

[0012] S4, calculating the time node for performing high and low voltage ride through test according to the recorded time of sending the signal;

[0013] S5. Perform high and low voltage ride-through tests on the wind turbine according to the time nodes.

[0014] Further, in step S1, the following operations are specifically performed:

[0015] Obtain the historical data of wind speed and direction of the test wind turbine and its surrounding wind turbines, and select the wind speed data of the wind turbine upwind of the test wind turbine based on the wind direction; at the same time, according to the wind speed-power characteristic curves of different wind turbine models and the test requirements of high and low voltage ride-through, set the following qualified wind speed conditions:

[0016] If it is a high power output test, that is, P>0.9Pn, the corresponding qualified wind speed range is V1-V2;

[0017] If it is a low power output test, that is, 0.1Pn≤P≤0.3Pn, the corresponding qualified wind speed range is V3-V4.

[0018] Further, in step S2, the calculation of the time difference is eliminated, and the following operations are specifically performed:

[0019] The wind speed data is processed to eliminate the influence of time difference. The time difference calculation method is as follows:

[0020] If it is a high power output test, that is, P>0.9Pn:

[0021]

[0022] If it is a low power output test, that is, 0.1Pn≤P≤0.3Pn:

[0023]

[0024] Among them, S is the distance between the test fan and the upwind fan, t is the time for the wind to reach the test fan from the upwind fan, the qualified wind speed range corresponding to the high-power output test is V1-V2, and the qualified wind speed range corresponding to the low-power output test is V3-V4.

[0025] Further, in step S2, the least square method is used to find the best matching function of the wind speed between the upwind wind turbine and the test wind turbine, and the following operations are performed specifically:

[0026] The formula for the best matching function of wind speed is:

[0027] y = ax + b;

[0028] Among them, y is the wind speed of the test fan, and x is the wind speed of the upwind fan;

[0029] There is an error E between the wind speed of the test fan and the wind speed of the upwind fan. The calculation formula is:

[0030]

[0031] Among them, i is time, x i is the wind speed data of the upwind wind turbine at time i, y i To test the fan at i+t 到达 Wind speed data at time t arrival is the time it takes for the wind to reach the test wind turbine from the upwind wind turbine;

[0032] Find the partial derivatives of a and b respectively:

[0033]

[0034]

[0035] Solving the partial derivatives of a and b together gives:

[0036]

[0037]

[0038] Further, in step S3, the real-time wind speed of the test wind turbine is calculated by the wind speed best matching function, and the time difference between the upper wind turbine and the test wind turbine is calculated, and the following operations are specifically performed:

[0039] Real-time measurement of wind speed x of upwind wind turbines 上 , using the wind speed best matching function y = ax + b, calculate the wind speed x of the test wind turbine 测 :

[0040] x 测 =ax 上 +b;

[0041] Calculate the time t from the upwind fan to the test fan 机 :

[0042]

[0043] Where S is the distance between the test fan and the upwind fan. x i is the wind speed data of the upwind wind turbine at time i, y i To test the fan at i+t 到达 The wind speed data at the time t is the time it takes for the wind to reach the test wind turbine from the upwind wind turbine.

[0044] Further, in step S3, it is determined whether the wind energy condition of the test wind turbine meets the test conditions of high and low voltage ride through according to the real-time wind speed of the upwind wind turbine, and the following operations are specifically performed:

[0045] Real-time measurement of upwind wind speed x 上 , and compare it with the wind speed of the qualified test condition to determine whether it is within the qualified wind speed range; if it is not within the qualified wind speed range, stop timing; if it is within the qualified wind speed range, start timing and calculate the wind speed x in the upwind direction 上 Duration t within the qualified wind speed range 持续 ; When the test standard requires time t 要求 The real-time wind speed x of the upper fan is displayed. 上 If the wind speed is not within the qualified range of the test, then t 持续 Clear; wait for the wind speed x of the fan in real time 上 After the wind speed is within the qualified range, restart the timing; when the wind speed in the upwind direction is x 上 Duration t within the qualified wind speed range 持续 When the time is greater than the time required by the test standard, t 要求 , send out a signal that meets the test conditions, and record the time as T 满足 .

[0046] Further, in step S4, the following operations are specifically performed:

[0047] Calculate the time to start the test equipment, the time t required for the test equipment to start from the time it has voltage drop or rise 动作 , then the earliest time we start the device is T 启动1 for:

[0048] T 启动1 =T 满足 +(t 到达 -t 要求 -t 动作 );

[0049] If a signal meeting the test conditions is sent at time T 满足 After that, the wind speed has been within the wind speed range required by the test for a duration of t 多 , then the latest time we start the device is T 启动2 for:

[0050] T启动2 =T 满足 +(t 到达 -t 要求 -t 动作 )+t 多 ;

[0051] Where trequired is the time required by the test standard, and tarrival is the time it takes for the wind to reach the test wind turbine from the upwind wind turbine.

[0052] The second object of the present invention is achieved by the following technical solution: a wind turbine high and low voltage ride through test system, comprising:

[0053] Wind measurement module, used to measure the real-time wind speed in the wind direction of the test wind turbine;

[0054] Communication module, used to realize the communication between the control module and the wind measurement module and the communication between the control module and the wind turbine high and low voltage ride-through test equipment;

[0055] The control module is used to receive the data of wind direction and wind speed measured by the test module, and process the data, or calculate the time to start the test equipment, and send a signal that the test conditions are met to the test equipment when the test requirements are met;

[0056] A power module, used to supply power to the wind measurement module, the communication module, the terminal module and the control module;

[0057] The terminal module is used to display the wind speed and direction data of the upwind fan and the test fan in real time, the signal sound and light alarm of the test conditions, and the time to start the test equipment, and can set various test parameters.

[0058] The third object of the present invention is achieved through the following technical solution: a non-temporary computer-readable medium storing instructions, which, when executed by a processor, executes the steps of the above-mentioned optimization method for high and low voltage ride-through testing of wind turbines.

[0059] The fourth purpose of the present invention is achieved through the following technical solution: a computing device, comprising a processor and a memory for storing processor executable programs, when the processor executes the program stored in the memory, the optimization method of the above-mentioned wind turbine high and low voltage ride-through test is implemented.

[0060] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0061] The present invention monitors the wind speed of the upwind wind turbine and uses the least squares method to find the best function match between it and the wind speed of the test unit, thereby predicting whether the wind energy condition of the test unit meets the test conditions of high and low voltage ride-through, and selecting the time node for high and low voltage ride-through test accordingly, making full use of the wind speed section that meets the test conditions for testing, avoiding the situation that the volatility and intermittent nature of wind energy make it impossible to determine whether the wind energy after the start of high and low voltage meets the test conditions, which easily leads to test failure, speeding up the test progress and reducing the test cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 Flow chart of the optimization method for high and low voltage ride through tests of wind turbines.

[0063] Figure 2 This is the structural block diagram of the wind turbine high and low voltage ride through test system.

[0064] Figure 3 This is the terminal module interface diagram of the wind turbine high and low voltage ride through test system. DETAILED DESCRIPTION

[0065] The present invention will be further described below in conjunction with specific embodiments.

[0066] Example 1

[0067] See also Figure 1 As shown, the optimization method for the wind turbine high and low voltage ride-through test provided in this embodiment includes the following steps:

[0068] S1. Obtain the wind speed data of the wind turbine upwind of the test wind turbine in the wind direction. At the same time, according to the wind speed-power characteristic curves of different wind turbine models and the test requirements of high and low voltage ride-through, set the corresponding qualified wind speed range. Specifically, perform the following operations:

[0069] Obtain the historical data of wind speed and direction of the test wind turbine and its surrounding wind turbines, and select the wind speed data of the wind turbine upwind of the test wind turbine based on the wind direction; at the same time, according to the wind speed-power characteristic curves of different wind turbine models and the test requirements of high and low voltage ride-through, set the following qualified wind speed conditions:

[0070] If it is a high power output test, that is, P>0.9Pn, the corresponding qualified wind speed range is V1-V2;

[0071] If it is a low power output test, that is, 0.1Pn≤P≤0.3Pn, the corresponding qualified wind speed range is V3-V4.

[0072] S2. Perform a calculation to eliminate the time difference based on the obtained wind speed data and the qualified wind speed range, and use the least squares method to calculate the best matching function of the wind speed of the upwind wind turbine and the test wind turbine. Specifically, perform the following operations:

[0073] The wind speed data is processed to eliminate the influence of time difference. The time difference calculation method is as follows:

[0074] If it is a high power output test, that is, P>0.9Pn:

[0075]

[0076] If it is a low power output test, that is, 0.1Pn≤P≤0.3Pn:

[0077]

[0078] Among them, S is the distance between the test fan and the upwind fan, t is the time for the wind to reach the test fan from the upwind fan, the qualified wind speed range corresponding to the high-power output test is V1-V2, and the qualified wind speed range corresponding to the low-power output test is V3-V4.

[0079] The least squares method is used to find the best matching function of the wind speed between the upwind wind turbine and the test wind turbine. The best matching function can be obtained through the data of multiple wind turbines, which is more accurate. Here, an upwind wind turbine is used as an example to illustrate the following operations:

[0080] The formula for the best matching function of wind speed is:

[0081] y = ax + b;

[0082] Among them, y is the wind speed of the test fan, and x is the wind speed of the upwind fan;

[0083] There is an error E between the wind speed of the test fan and the wind speed of the upwind fan. The calculation formula is:

[0084]

[0085] Among them, i is time, x i is the wind speed data of the upwind wind turbine at time i, y i To test the fan at i+t 到达 Wind speed data at time t arrival is the time it takes for the wind to reach the test wind turbine from the upwind wind turbine;

[0086] Find the partial derivatives of a and b respectively:

[0087]

[0088]

[0089] Solving the partial derivatives of a and b together gives:

[0090]

[0091]

[0092] S3. The wind turbine that has completed networking obtains the wind speed of the wind turbine in the upwind direction in real time through the switch of the test wind turbine, calculates the real-time wind speed of the test wind turbine through the wind speed best matching function and calculates the time difference between the upwind wind turbine and the test wind turbine, and judges whether the wind energy condition of the test wind turbine meets the test conditions of high and low voltage ride-through according to the real-time wind speed of the upwind wind turbine. If it meets the test conditions, a signal that the test conditions are met is issued and the time when the signal is issued is recorded; if it does not meet the test conditions, the timing is stopped;

[0093] Real-time measurement of wind speed x of upwind wind turbines 上 , using the wind speed best matching function y = ax + b, calculate the wind speed x of the test wind turbine 测 :

[0094] x 测 =ax 上 +b;

[0095] Calculate the time t from the upwind fan to the test fan 机 :

[0096]

[0097] Where S is the distance between the test fan and the upwind fan. x i is the wind speed data of the upwind wind turbine at time i, y i To test the fan at i+t 到达 The wind speed data at the time t is the time it takes for the wind to reach the test wind turbine from the upwind wind turbine.

[0098] According to the real-time wind speed of the test wind turbine, determine whether the wind energy of the test wind turbine meets the test conditions of high and low voltage ride-through, that is, identify whether the wind speed in the upwind direction is within the qualified wind speed range. Specifically, perform the following operations:

[0099] Real-time measurement of upwind wind speed x 上 , and compare it with the wind speed of the qualified test condition to determine whether it is within the qualified wind speed range; if it is not within the qualified wind speed range, stop timing; if it is within the qualified wind speed range, start timing and calculate the wind speed x in the upwind direction 上 Duration t within the qualified wind speed range 持续 ; When the test standard requires time t 要求 The real-time wind speed x of the upper fan is displayed. 上 If the wind speed is not within the qualified range of the test, then t 持续 Clear; wait for the wind speed x of the fan in real time 上 After the wind speed is within the qualified range, restart the timing; when the wind speed in the upwind direction is x上 Duration t within the qualified wind speed range 持续 When the time is greater than the time required by the test standard, t 要求 , send out a signal that meets the test conditions, and record the time as T 满足 .

[0100] S4. Calculate the time node for performing high and low voltage ride through test according to the recorded time of sending the signal, and specifically perform the following operations:

[0101] Calculate the time to start the test equipment, the time t required for the test equipment to start from the time it has voltage drop or rise 动作 , then the earliest time we start the device is T 启动1 for:

[0102] T 启动1 =T 满足 +(t 到达 -t 要求 -t 动作 );

[0103] If a signal meeting the test conditions is sent at time T 满足 After that, the wind speed has been within the wind speed range required by the test for a duration of t 多 , then the latest time we start the device is T 启动2 for:

[0104] T 启动2 =T 满足 +(t 到达 -t 要求 -t 动作 )+t 多 ;

[0105] Among them, t 要求 The time required by the test standard, t 到达 It is the time from when the wind is blowing from the upwind wind turbine to when the wind turbine is tested.

[0106] S5. Perform high and low voltage ride-through tests on the wind turbine according to the time nodes.

[0107] Example 2

[0108] This embodiment discloses a wind turbine high and low voltage ride through test system, including:

[0109] Wind measurement module, used to measure the real-time wind speed in the wind direction of the test wind turbine;

[0110] Communication module, used to realize the communication between the control module and the wind measurement module and the communication between the control module and the wind turbine high and low voltage ride-through test equipment;

[0111] The control module is used to receive the data of wind direction and wind speed measured by the test module, and process the data, or calculate the time to start the test equipment, and send a signal that the test conditions are met to the test equipment when the test requirements are met;

[0112] A power module, used to supply power to the wind measurement module, the communication module, the terminal module and the control module;

[0113] The terminal module is used to display the wind speed and direction data of the upwind fan and the test fan in real time, the signal sound and light alarm of the test conditions, and the time to start the test equipment, and can set various test parameters.

[0114] Example 3

[0115] This embodiment discloses a non-transitory computer-readable medium storing instructions. When the instructions are executed by a processor, the steps of the optimization method for high and low voltage ride-through tests of a wind turbine described in Embodiment 1 are executed.

[0116] The non-temporary computer-readable medium in this embodiment may be a disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), a USB flash drive, a mobile hard disk, or other media.

[0117] Example 4

[0118] This embodiment discloses a computing device, including a processor and a memory for storing a program executable by the processor. When the processor executes the program stored in the memory, the optimization method for high and low voltage ride-through testing of a wind turbine described in Example 1 is implemented.

[0119] The computing device described in this embodiment may be an embedded host, a desktop computer, a laptop computer, a smart phone, a PDA handheld terminal, a tablet computer, a programmable logic controller (PLC), or other terminal devices with a processor function.

[0120] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all changes made according to the shape and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An optimization method for high and low voltage ride-through test of a wind turbine, characterized in that: The following steps are involved: S1. Obtain the wind speed data of the upwind wind turbine of the test wind turbine in the wind direction, and set the corresponding qualified wind speed range according to the wind speed-power characteristic curves of different wind turbine models and the test requirements of high and low voltage ride-through; S2. Perform calculations to eliminate the time difference based on the obtained wind speed data and the qualified wind speed range, and use the least squares method to calculate the best matching function of the wind speeds of the upwind wind turbine and the test wind turbine; S3. The wind turbine that has completed networking obtains the wind speed of the wind turbine in the upwind direction in real time through the switch of the test wind turbine, calculates the real-time wind speed of the test wind turbine through the wind speed best matching function and calculates the time difference between the upwind wind turbine and the test wind turbine, and judges whether the wind energy condition of the test wind turbine meets the test conditions of high and low voltage ride-through according to the real-time wind speed of the upwind wind turbine. If it meets the test conditions, a signal that the test conditions are met is issued and the time when the signal is issued is recorded; if it does not meet the test conditions, the timing is stopped; S4, calculating the time node for performing high and low voltage ride through test according to the recorded time of sending the signal; S5. Perform high and low voltage ride-through tests on the wind turbine according to the time nodes.

2. The optimization method for high and low voltage ride through test of a wind turbine according to claim 1, characterized in that: In step S1, the following operations are specifically performed: Obtain the historical data of wind speed and direction of the test wind turbine and its surrounding wind turbines, and select the wind speed data of the wind turbine upwind of the test wind turbine based on the wind direction; at the same time, according to the wind speed-power characteristic curves of different wind turbine models and the test requirements of high and low voltage ride-through, set the following qualified wind speed conditions: If it is a high power output test, that is, P>0.9Pn, the corresponding qualified wind speed range is V1-V2; If it is a low power output test, that is, 0.1Pn≤P≤0.3Pn, the corresponding qualified wind speed range is V3-V4.

3. The optimization method for high and low voltage ride through test of a wind turbine according to claim 1, characterized in that: In step S2, the calculation of the time difference is eliminated, and the following operations are specifically performed: The wind speed data is processed to eliminate the influence of time difference. The time difference calculation method is as follows: If it is a high power output test, that is, P>0.9Pn: If it is a low power output test, that is, 0.1Pn≤P≤0.3Pn: Where S is the distance between the test fan and the upwind fan, t 到达 It is the time when the wind blows from the upwind wind turbine to the tested wind turbine. The qualified wind speed range for high-power output test is V1-V2, and the qualified wind speed range for low-power output test is V3-V4.

4. The optimization method for high and low voltage ride through test of a wind turbine according to claim 1, characterized in that: In step S2, the least square method is used to find the best matching function of the wind speed between the upwind wind turbine and the test wind turbine, and the following operations are performed specifically: The formula for the best matching function of wind speed is: y = ax + b; Among them, y is the wind speed of the test fan, and x is the wind speed of the upwind fan; There is an error E between the wind speed of the test fan and the wind speed of the upwind fan. The calculation formula is: Among them, i is time, x i is the wind speed data of the upwind wind turbine at time i, y i To test the fan at i+t 到达 Wind speed data at time t 到达 The time from when the wind blows from the upwind direction to when the wind turbine is tested; Find the partial derivatives of a and b respectively: Solving the partial derivatives of a and b together gives:

5. The optimization method for high and low voltage ride through test of a wind turbine according to claim 1, characterized in that: In step S3, the real-time wind speed of the test wind turbine is calculated by the wind speed best matching function, and the time difference between the upper wind turbine and the test wind turbine is calculated. Specifically, the following operations are performed: Real-time measurement of wind speed x of upwind wind turbines 上 , using the wind speed best matching function y = ax + b, calculate the wind speed x of the test wind turbine 测 : x 测 =ax 上 +b; Calculate the time t from the upwind fan to the test fan 机 : Where S is the distance between the test fan and the upwind fan. x i is the wind speed data of the upwind wind turbine at time i, y i To test the fan at i+t 到达 Wind speed data at time t 到达 It is the time from when the wind is blowing from the upwind wind turbine to when the wind turbine is tested.

6. The optimization method for high and low voltage ride through test of a wind turbine according to claim 1, characterized in that: In step S3, it is determined whether the wind energy of the test wind turbine meets the test conditions of high and low voltage ride through according to the real-time wind speed of the upwind wind turbine, and the following operations are specifically performed: Real-time measurement of upwind wind speed x 上 , and compare it with the wind speed of the test qualified condition to determine whether it is within the test qualified wind speed range; If the wind speed is not within the qualified range, the timing is stopped; if the wind speed is within the qualified range, the timing is started and the wind speed x in the upwind direction is calculated. 上 Duration t within the qualified wind speed range 持续 ; When the test standard requires time t 要求 The real-time wind speed x of the upper fan is displayed. 上 If the wind speed is not within the qualified range of the test, then t 持续 Clear; wait for the wind speed x of the fan in real time 上 After the wind speed is within the qualified range, restart the timing; when the wind speed in the upwind direction is x 上 Duration t within the qualified wind speed range 持续 When the time is greater than the time required by the test standard, t 要求 , send out a signal that meets the test conditions, and record the time as T 满足 .

7. The optimization method for high and low voltage ride through test of a wind turbine according to claim 1, characterized in that: In step S4, the following operations are specifically performed: Calculate the time to start the test equipment, the time t required for the test equipment to start from the time it has voltage drop or rise 动作 , then the earliest time we start the device is T 启动1 for: T 启动1 =T 满足 +(t 到达 -t 要求 -t 动作 ); If a signal meeting the test conditions is sent at time T 满足 After that, the wind speed has been within the wind speed range required by the test for a duration of t 多 , then the latest time we start the device is T 启动2 for: T 启动2 =T 满足 +(t 到达 -t 要求 -t 动作 )+t 多 ; Where trequired is the time required by the test standard, and tarrival is the time it takes for the wind to reach the test wind turbine from the upwind wind turbine.

8. A wind turbine high and low voltage ride through test system, characterized in that: include: Wind measurement module, used to measure the real-time wind speed in the wind direction of the test wind turbine; Communication module, used to realize the communication between the control module and the wind measurement module and the communication between the control module and the wind turbine high and low voltage ride-through test equipment; The control module is used to receive the data of wind direction and wind speed measured by the test module, and process the data, or calculate the time to start the test equipment, and send a signal that the test conditions are met to the test equipment when the test requirements are met; A power module, used to supply power to the wind measurement module, the communication module, the terminal module and the control module; The terminal module is used to display the wind speed and direction data of the upwind fan and the test fan in real time, the signal sound and light alarm of the test conditions, and the time to start the test equipment, and can set various test parameters.

9. A non-transitory computer-readable medium storing instructions, characterized in that: When the instruction is executed by the processor, the steps of the optimization method for high and low voltage ride-through testing of a wind turbine according to claims 1-7 are executed.

10. A computing device comprising a processor and a memory for storing a program executable by the processor, characterized in that: When the processor executes the program stored in the memory, the optimization method for the wind turbine high and low voltage ride-through test described in claims 1-7 is implemented.

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