Wind turbine generator system safety function test system and method

Abstract

The application discloses a kind of wind generating set safety function test system and method, belong to wind power generation technical field.The system includes terminal located outside wind generating set, and switch and test control module located inside wind generating set, terminal is connected with switch communication, switch is connected with test control module communication;Terminal sends the control instruction of target safety function test to test control module by switch in the process of wind generating set operation, control instruction is generated based on test input, test input indicates target safety function test identification, target safety function test identification represents target safety function test;Test control module changes the state of function component associated with target safety function test according to the control instruction of target safety function test, to trigger target safety function test.According to the embodiment of the application, the safety risk of staff during safety function test can be reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of wind power generation, and particularly relates to a wind turbine safety function test system and method. BACKGROUND

[0002] With the continuous development of wind power technology, wind turbines are also constantly updated. In order to ensure the safe operation of the wind turbine, it is necessary to test the safety function protection mechanism of the wind turbine at the initial stage of the prototype operation of the wind turbine, and verify whether the safety function protection mechanism can be normally effective.

[0003] The safety function test of the wind turbine needs the staff to manually operate in the wind turbine to trigger the safety function protection mechanism, so as to verify whether the safety function protection mechanism can be effective. For example, the staff needs to knock the vibration sensor in the nacelle of the wind turbine to monitor whether the wind turbine will issue a vibration overrun warning. Since the safety function test needs to be performed during the operation of the wind turbine, when the staff works in the nacelle of the wind turbine, the wind turbine is in an operating state, which brings great risk to the safety of the staff. SUMMARY

[0004] The embodiment of the application provides a wind turbine safety function test system and method, which can reduce the safety risk of the staff in the safety function test process.

[0005] In a first aspect, the embodiment of the application provides a wind turbine safety function test system, which comprises a terminal located outside the wind turbine, a switch and a test control module located in the wind turbine, the terminal is in communication connection with the switch, and the switch is in communication connection with the test control module; the terminal is used for sending a control instruction of a target safety function test to the test control module through the switch during the operation of the wind turbine, the control instruction is generated based on a test input, the test input indicates a target safety function test identifier, and the target safety function test identifier is used to represent the target safety function test; the test control module is configured to be connected with a function component in the wind turbine, and is used for changing the state of the function component associated with the target safety function test according to the control instruction of the target safety function test, so as to trigger the target safety function test.

[0006] According to the first aspect of the implementation, the test control module includes a control unit and an input / output unit. The control unit is connected to the input / output unit, and the input / output unit includes one or more relays connected to functional components. The control unit is used to control the switching state of the relays connected to the functional components associated with the target safety function test according to the control command of the target safety function test, so as to change the state of the functional components associated with the target safety function test.

[0007] According to any of the foregoing embodiments of the first aspect, the functional components include functional execution parts and / or wind turbine generator signal lines.

[0008] According to any of the foregoing embodiments of the first aspect, the target security function test identifier includes target point table address data bits, which store control instructions for the target security function test.

[0009] According to any of the foregoing embodiments of the first aspect, the test control module is located in the nacelle of the wind turbine generator set.

[0010] According to any of the foregoing embodiments of the first aspect, the wind turbine generator set safety function testing system further includes a wind turbine generator set main control module located within the wind turbine generator set, which is communicatively connected to a switch; the wind turbine generator set main control module is used to send the operating parameters of the wind turbine generator set in the target safety function test to the terminal through the switch; the terminal is also used to display the wind turbine generator set status monitoring interface based on the operating parameters.

[0011] According to any of the foregoing embodiments of the first aspect, the wind turbine generator status monitoring interface includes one or more of the following: a data display area, a data list, a control command operation area, a single-channel oscilloscope image, a multi-channel oscilloscope image, and a real-time changing waveform image.

[0012] According to any of the foregoing embodiments of the first aspect, the terminal is further configured to obtain the acquisition time of the operating parameters, and generate a data file based on the operating parameters, the acquisition time of the operating parameters, and the file segmentation length.

[0013] Secondly, embodiments of this application provide a method for testing the safety functions of a wind turbine generator set, applied to a wind turbine generator set safety testing system. The wind turbine generator set safety testing system includes a terminal located outside the wind turbine generator set, and a switch and a test control module located inside the wind turbine generator set. The terminal is communicatively connected to the switch, and the switch is communicatively connected to the test control module. The test control module is configured to connect to functional components in the wind turbine generator set. The method includes: during the operation of the wind turbine generator set, the terminal sends a control command for a target safety function test to the test control module through the switch. The control command is generated based on test input, and the test input indicates a target safety function test identifier, which is used to characterize the target safety function test. The test control module changes the state of the functional components associated with the target safety function test according to the control command for the target safety function test, thereby triggering the target safety function test.

[0014] According to the second aspect of the implementation, the test control module includes a control unit and an input / output unit. The control unit is connected to the input / output unit, and the input / output unit includes one or more relays, which are connected to functional components.

[0015] The test control module changes the state of the functional components associated with the target safety function test according to the control command of the target safety function test, so as to trigger the target safety function test. This includes: the control unit controlling the state of the relay switching switch connected to the functional components associated with the target safety function test according to the control command of the target safety function test, so as to change the state of the functional components associated with the target safety function test and trigger the target safety function test.

[0016] According to any of the foregoing embodiments of the second aspect, the functional components include functional execution parts and / or wind turbine generator signal lines.

[0017] According to any of the foregoing embodiments of the second aspect, the target security function test identifier includes target point table address data bits, which store control instructions for the target security function test.

[0018] Before sending the control command for the target security function test to the test control module via the switch, the process also includes: the terminal determining the target point table address data bits based on the test input; and the terminal accessing the target point table address data bits to obtain the control command for the target security function test stored in the target point table address data bits.

[0019] According to any of the foregoing embodiments of the second aspect, the wind turbine generator safety testing system further includes a wind turbine generator main control module located within the wind turbine generator, the wind turbine generator main control module being communicatively connected to a switch.

[0020] The method also includes: the wind turbine main control module sending the wind turbine's operating parameters to the terminal via a switch; and the terminal displaying the wind turbine status monitoring interface based on the operating parameters.

[0021] According to any of the aforementioned embodiments of the second aspect, the wind turbine generator status monitoring interface includes one or more of the following: a data display area, a data list, a control command operation area, a single-channel oscilloscope image, a multi-channel oscilloscope image, and a real-time changing waveform image.

[0022] According to any of the foregoing embodiments of the second aspect, the method further includes: the terminal acquiring the acquisition time of the operating parameters; the terminal generating a data file based on the operating parameters, the acquisition time of the operating parameters, and the file segmentation length.

[0023] This application provides a safety function testing system and method for wind turbine generator sets. The safety function testing system includes a terminal located outside the wind turbine generator set, and a switch and a test control module located inside the wind turbine generator set. The test control module is connected to the functional components in the wind turbine generator set, and the terminal can communicate with the test control module through the switch. During the operation of the wind turbine generator set, the terminal sends control commands for the target safety function test to the test control module through the switch. This causes the test control module to change the state of the functional components associated with the safety function test corresponding to the control command, thereby triggering the safety function test. In this process, the safety function test is triggered interactively and collaboratively by the terminal, the switch, and the test control module, without requiring manual triggering by personnel. This avoids situations where personnel are located in the nacelle of a running wind turbine generator set during the safety function test, reducing the safety risks for personnel during the safety function test. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of a structure of an embodiment of the wind turbine generator safety function testing system provided in this application;

[0026] Figure 2 A schematic diagram of an example structure of the test control module provided in an embodiment of this application;

[0027] Figure 3 A schematic diagram of another embodiment of the wind turbine generator safety function testing system provided in this application;

[0028] Figure 4A schematic diagram illustrating an example of a wind turbine generator status monitoring interface provided in an embodiment of this application;

[0029] Figure 5 A schematic diagram of another example of a wind turbine generator status monitoring interface provided in an embodiment of this application;

[0030] Figure 6 A schematic diagram of yet another example of a wind turbine generator status monitoring interface provided in the embodiments of this application;

[0031] Figure 7 A flowchart of an embodiment of the wind turbine generator safety function testing method provided in this application;

[0032] Figure 8 A flowchart of another embodiment of the wind turbine generator safety function test method provided in this application;

[0033] Figure 9 A flowchart of yet another embodiment of the wind turbine generator safety function testing method provided in this application;

[0034] Figure 10 A flowchart of yet another embodiment of the wind turbine generator safety function test method provided in this application. Detailed Implementation

[0035] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0036] With the continuous development of wind power technology, wind turbine generators are also constantly being updated, resulting in a large number of new models. To ensure the safe operation of wind turbine generators, it is necessary to conduct safety function tests on the safety protection mechanisms during the initial operation of the prototype. This verifies whether the parameters and characteristics of the wind turbine generator are consistent with the expectations in the design and evaluation, thereby verifying whether the safety protection mechanisms can function normally. Safety function testing of wind turbine generators requires manual operation by personnel inside the wind turbine generator to trigger the safety protection mechanisms, thus verifying their effectiveness. For example, personnel need to tap vibration sensors inside the wind turbine generator nacelle to monitor whether the generator will issue a vibration over-limit warning. Because safety function testing needs to be conducted during wind turbine generator operation, the wind turbine generator is in operation when personnel are working in the nacelle, posing a significant safety risk to the personnel.

[0037] This application provides a safety function testing system and method for wind turbine generator sets. A switch and a test control module are installed inside the wind turbine generator set, and a terminal is installed outside the wind turbine generator set. The test control module is connected to the functional components within the wind turbine generator set, and the terminal communicates with the test control module via the switch. During the operation of the wind turbine generator set, the terminal sends control commands to the test control module through the switch, causing the test control module to change the state of the functional components associated with the safety function test as indicated by the control commands, thereby triggering the safety function test. In this process, the safety function test is triggered interactively and collaboratively by the terminal, switch, and test control module, eliminating the need for manual triggering by personnel. This avoids situations where personnel are located inside the nacelle of a running wind turbine generator set during safety function testing, reducing the safety risks to personnel.

[0038] The following sections will describe the wind turbine generator safety function testing system and method provided in this application.

[0039] This application provides a safety function testing system for wind turbine generator sets. Figure 1 This is a schematic diagram of an embodiment of the wind turbine generator safety function testing system provided in this application. Figure 1 As shown, the wind turbine generator set safety function test system may include a terminal 12 located outside the wind turbine generator set 11, and a switch 13 and a test control module 14 located inside the wind turbine generator set 11.

[0040] Terminal 12 is communicatively connected to switch 13. A communication connection can be established between terminal 12 and switch 13 when safety function testing of the wind turbine generator set is required. In this embodiment, terminal 12 can serve as the host computer in the wind turbine generator set safety function testing system. In some examples, for ease of participation in safety function testing and installation, terminal 12 can be a portable terminal device, such as a laptop computer, but the type of terminal 12 is not limited here. Terminal 12 is located outside the wind turbine generator set 11 and can be operated by personnel, thereby preventing personnel from entering the wind turbine generator set 11 while it is running.

[0041] Terminal 12 is used to send control commands for target safety function tests to test control module 14 via switch 13 during the operation of wind turbine generator set 11. The control commands are generated based on test inputs. Specifically, the test inputs can be user inputs on the display interface of terminal 12. The test input indicates a target safety function test identifier, which characterizes the target safety function test. The test input indicates that the user expects to perform the target safety function test. The safety function test identifier characterizes the safety function test. The safety function test is a test of the safety function protection mechanism of the wind turbine generator set. Different safety function tests have different safety function test identifiers. For example, the safety function test identifier for the pitch signal line disconnection safety function test is different from the safety function test identifier for the vibration over-limit safety function test. The target safety function test identifier is the safety function test identifier indicated by the test input; correspondingly, the target safety function test is the safety function test indicated by the control command, i.e., the expected safety function test.

[0042] The switch 13 communicates not only with the terminal 12 but also with the test control module 14. This application uses the switch 13 to achieve communication interaction between the terminal 12 and the test control module 14. The communication connections between the switch 13 and the terminal 12, and between the switch 13 and the test control module 14, can be wired or wireless, and are not limited here. For example, the terminal 12, switch 13, and test control module 14 can be connected via an RJ45 network. One or more switches 13 can be installed in the wind turbine generator set 11; the number of switches 13 is not limited here. In some examples, one switch 13 can be installed at the base of the wind turbine generator set 11 to facilitate establishing a communication connection with the terminal 12. When multiple switches 13 are installed in the wind turbine generator set 11, the multiple switches 13 are connected sequentially. One switch 13 can be installed at the base of the wind turbine generator set 11, and another switch 13 can be installed in the nacelle of the wind turbine generator set 11. The switch 13 installed in the nacelle facilitates communication with the test control module 14.

[0043] The test control module 14 is configured to connect to functional components within the wind turbine generator set 11. The test control module 14 is located within the wind turbine generator set 11; specifically, it may be located within the nacelle of the wind turbine generator set 11. The test control module 14 may specifically include a programmable logic controller (PLC), but may also include other devices with control processing functions; this is not limited to these specific components.

[0044] The test control module 14 is used to change the state of the functional components associated with the target safety function test according to the control command of the target safety function test, so as to trigger the target safety function test. A safety function test corresponds to a functional point of the wind turbine generator set that needs to be tested. A functional component is a component in the wind turbine generator set 11 that has a specific function. A change in the state of a functional component will trigger the safety function test corresponding to that functional component. A functional component may include one or more parts; the composition of the functional component is not limited here, and can be determined according to the safety function test. In some examples, a functional component may include a function execution component and / or wind turbine generator set signal lines. For example, a function execution component may include a solenoid valve, a sensor, or other component capable of performing certain actions such as on / off actions or data acquisition actions; wind turbine generator set signal lines may include power supply signal lines, pitch signal lines, yaw signal lines, etc., and are not limited here.

[0045] When the test control module 14 receives the control command for the target security function test, it can respond to the control command to determine the target security function test and the functional components associated with the target security function test, and change the state of the functional components associated with the target security function test. Specifically, it can change the state of the functional components associated with the target security function test from a normal state to an abnormal state, thereby triggering the target security function test.

[0046] For example, the target safety function test identifier represents the pitch signal line disconnection safety function test, and the functional components associated with the pitch signal line disconnection safety function test may include the pitch signal line. Upon receiving a control command, the test control module 14 can change the state of the pitch signal line from connected to disconnected, i.e., disconnect the pitch signal line. Under the desired state, upon detecting a disconnection of the pitch signal line, the wind turbine generator 11 will trigger the corresponding safety function protection mechanism. The target safety function test is to detect whether the wind turbine generator 11 triggers the safety function protection mechanism corresponding to the pitch signal line disconnection, and whether the safety function protection mechanism achieves the expected effect.

[0047] For example, the target safety function test identifier represents the vibration over-limit safety function test. The functional components associated with the vibration over-limit safety function test may include a solenoid valve and a vibration sensor. The solenoid valve can be located next to the vibration sensor. The solenoid valve has a telescopic rod. The solenoid valve is in the connected state, meaning its coil is energized, and electromagnetic induction causes the telescopic rod to extend, impacting the vibration sensor. The test control module 14 receives a control command and can change the solenoid valve's state from the closed state to the connected state, thereby striking the vibration sensor and changing its state from the normal state to the vibration over-limit state. In some examples, the control command may indicate a trigger duration, which indicates the duration for which the solenoid valve remains in the connected state. When the duration of the connected state reaches the trigger duration, the solenoid valve returns to the closed state, and the telescopic rod retracts. Under the desired condition, if the vibration sensor is detected to change from the normal state to the vibration over-limit state, the wind turbine generator 11 will trigger the safety function protection mechanism corresponding to the vibration over-limit of the vibration sensor. The target safety function test is to detect whether the wind turbine generator 11 triggers the safety function protection mechanism corresponding to the vibration over-limit of the vibration sensor, and whether the safety function protection mechanism achieves the expected effect.

[0048] In some examples, terminal 12 can also send a reset command for the target safety function test to test control module 14 via switch 13. This reset command is used to reset the state of the functional components associated with the target safety function test. Test control module 14 can reset the state of the functional components associated with the target safety function test according to the reset command. For example, if the target safety function test identifier indicates a pitch signal line disconnection safety function test, upon receiving the reset command, test control module 14 can change the state of the pitch signal line from disconnected to connected, i.e., make the pitch signal line conductive. As another example, if the target safety function test identifier indicates a vibration over-limit safety function test, upon receiving the reset command, test control module 14 can change the state of the solenoid valve from connected to closed, making the solenoid valve closed and retracting the telescopic boom.

[0049] In this embodiment, the wind turbine generator safety function testing system includes a terminal 12 located outside the wind turbine generator 11, and a switch 13 and a test control module 14 located inside the wind turbine generator 11. The test control module 14 is connected to the functional components in the wind turbine generator 11, and the terminal 12 can communicate with the test control module 14 through the switch 13. During the operation of the wind turbine generator 11, the terminal 12 sends a control command for the target safety function test to the test control module 14 through the switch 13. The test control module 14 responds to the control command by changing the state of the functional component associated with the safety function test corresponding to the control command, thereby triggering the safety function test. In this process, the safety function test is triggered interactively and collaboratively by the terminal 12, the switch 13, and the test control module 14, without requiring manual triggering by personnel. This avoids situations where personnel are located in the nacelle of a running wind turbine generator during the safety function test, reducing the safety risks to personnel during the safety function test. Moreover, the safety function test in this embodiment meets the standard requirements of relevant organizations in the field of wind power technology. The terminal 12 is easy to carry, and the wind turbine generator safety function test system can be quickly installed in the wind farm, reducing labor and time costs.

[0050] In some embodiments, the test control module 14 in the above embodiments includes an input / output (I / O) unit, which can be implemented as an input / output relay unit. The input / output relay unit includes one or more relays, which can change the state of functional components. Figure 2 This is a schematic diagram illustrating an example of the test control module provided in an embodiment of this application. Figure 2 As shown, the test control module 14 may include a control unit 141 and an input / output unit 142, which are connected together.

[0051] The input / output unit 142 may include one or more relays 1421, which may be integrated into the input / output unit 142 as a trigger function interface. One relay 1421 can serve as a trigger function interface, and one relay 1421 can trigger a specific safety function test. Before receiving a control command, the normal switching state of the relay 1421 can be set to either an off or closed state according to the corresponding safety function test. The normal switching states of the relays 1421 corresponding to different safety function tests may be different; that is, the normal switching states of the relays 1421 connected to different functional components may be different. For example, before receiving a control command, the normal switching state of the relay 1421 connected to the wind turbine generator signal line is closed to ensure the continuity of the wind turbine generator signal line. As another example, before receiving a control command, the relay connected to the solenoid valve is off to ensure the solenoid valve is closed.

[0052] When the input / output unit 142 includes multiple relays 1421, it is equivalent to the input / output unit 142 having multiple trigger function interfaces. If the multiple trigger function interfaces, i.e., the relays 1421, are not all occupied, and if it is necessary to expand the safety function test, the unoccupied trigger function interface, i.e. the relay 1421, can be activated to expand the safety function test, making the expansion of the safety function test more convenient and faster.

[0053] The control unit 141 is used to control the switching state of relays connected to functional components associated with the target safety function test according to the control command of the target safety function test, thereby changing the state of the functional components associated with the target safety function test. The control unit 141 receives the control command of the target safety function test, identifies the relay 1421 connected to the functional component associated with the target safety function test, and sends a control signal to the relay 1421 to control the switching state of the relay 1421, that is, to switch from the original switching state to the opposite switching state. For example, before receiving the control command, the relay 1421 is in a closed state; upon receiving the control command, the control unit 141 controls the relay 1421 to switch from a closed state to a closed state. As another example, before receiving the control command, the relay 1421 is in a closed state; upon receiving the control command, the control unit 141 controls the relay 1421 to switch from a closed state to a closed state. The change in the relay's switching state causes a change in the state of the functional component connected to the relay, from a normal state to an abnormal state, thereby triggering the corresponding safety function test.

[0054] In some embodiments, terminal 12 can access the point table address data bits storing control instructions to obtain the corresponding control instructions. The safety function test identifier may include point table address data bits, which store the control instructions for the safety function test. The point table address data bits may be register address data bits. The point table address data bits may be located in terminal 12 or in a remote server, and are not limited thereto. Terminal 12 can pre-write the control instructions into the point table address data bits via a slave protocol of the communication protocol. Storing the control instructions in the point table address data bits allows terminals of the master station supporting the communication protocol of the point table address data bits to access the control instructions at that address, improving the versatility and compatibility of the wind turbine generator set safety function test system. The control instructions may indicate the relay 1421 whose switching state needs to be switched and the switching state of relay 1421 after switching. Different safety function tests may correspond to different point table address data bits, that is, different safety function tests may correspond to different control instructions. Differences in control instructions may include different relays 1421 indicated by the control instructions, and different switching states of the control relay 1421, etc., and are not limited thereto. The target security function test identifier in the above embodiments may include a target point table address data bit, which stores the control command for the target security function test. The target point table address data bit is the point table address data bit indicating the test input, and the control command for the target security function test is the control command stored in the target point table address data bit. Terminal 12 can access the target point table address data bit to obtain the control command for the target security function test and issue the control command so that control unit 141 controls the relay 1421 corresponding to the target security function test to switch to the switching state indicated by the control command.

[0055] In some embodiments, the wind turbine generator safety function testing system can also acquire the operating parameters of the wind turbine generator in real time when a safety function test is triggered, and complete the safety function test quickly and accurately. Figure 3 This is a schematic diagram of another embodiment of the wind turbine generator safety function testing system provided in this application. Figure 3 and Figure 1 The difference is that, Figure 3 The wind turbine generator set safety function test system shown may also include a wind turbine generator set main control module 15.

[0056] The wind turbine generator main control module 15 is communicatively connected to the switch 13. This communication connection can be wired or wireless, and is not limited here. The terminal 12 can communicate with the wind turbine generator main control module 15 via the switch 13. For example, the terminal 12, switch 13, and wind turbine generator main control module 15 can be connected via an RJ45 network. The wind turbine generator main control module 15 can be implemented as a PLC or other component with control and processing functions, and is not limited here.

[0057] The wind turbine generator main control module 15 is used to send the operating parameters of the wind turbine generator 11 during the target safety function test to the terminal 12 via the switch 13. For example, the wind turbine generator main control module 15 can use communication protocols such as Modbus TCP to provide operating parameters to the terminal 12 via the switch 13. Modbus TCP is an industrial fieldbus protocol standard. The wind turbine generator main control module 15 can also use other communication protocols to provide operating parameters to the terminal 12 via the switch 13.

[0058] The main control module 15 of the wind turbine generator set can obtain the operating parameters of the wind turbine generator set 11 during the target safety function test from the wind turbine generator set 11, and then send the operating parameters to the terminal 12 through the switch 13. The operating parameters are the parameters of the wind turbine generator set during operation, which may include speed, pitch angle, wind speed, vibration frequency, vibration amplitude, signal on / off status, etc., and are not limited here.

[0059] Terminal 12 is also used to display the wind turbine generator status monitoring interface based on operating parameters. The wind turbine generator status monitoring interface displays real-time operating parameters. It can display real-time operating parameters through raw waveforms, data, and transformed waveforms.

[0060] In some examples, the wind turbine generator status monitoring interface may include, but is not limited to, one or more of the following: a data display area, a data list, a control command operation area, a single-channel oscilloscope image, a multi-channel oscilloscope image, and a real-time waveform image. The data display area directly presents data to the user; the operating parameters in this area can be of higher importance, providing a more intuitive data display. The data list displays data in a list format, and the data can be viewed by dragging a scroll bar. The operating parameters in the data list are less important than those in the data display area. The control command operation area may include controls that trigger the sending of control messages; for example, it may include a control message sending button control, but the form of the control triggering the sending of control messages is not limited here. A single-channel oscilloscope image can display the waveform of one operating parameter to show changes in the operating parameter in real time. A multi-channel oscilloscope image can display the waveforms of multiple operating parameters to show the changes of each parameter in real time. Real-time transformed waveform images can display waveforms after real-time transformation of operating parameters. The transformation algorithm is not limited here. For example, the transformation algorithm can be the Fast Fourier Transform (FFT) algorithm. Correspondingly, the real-time transformed waveform image can be a real-time FFT waveform image, which can display the spectrum of the operating parameters of the wind turbine generator in real time.

[0061] For example, Figure 4 This is a schematic diagram of an example of a wind turbine generator status monitoring interface provided in an embodiment of this application. Figure 4 As shown, the wind turbine generator status monitoring interface may include a data display area 21, a data list 22, and a control command operation area 23. The control command operation area 23 includes multiple button controls 231 that trigger the sending of control messages.

[0062] For example, Figure 5 This is a schematic diagram of another example of a wind turbine generator status monitoring interface provided in an embodiment of this application. (See diagram below.) Figure 5 As shown, the wind turbine generator status monitoring interface may include a multi-channel oscilloscope image 24. Figure 5 The multi-channel oscilloscope image 24 can display waveforms of up to 6 channels simultaneously. Each channel corresponds to a certain operating parameter. An index number can be configured for each operating parameter. The operating parameter corresponding to each channel can be selected by the index number to monitor the waveform of the operating parameter corresponding to each channel.

[0063] For example, Figure 6 This is a schematic diagram of yet another example of a wind turbine generator status monitoring interface provided in an embodiment of this application. (See diagram below.) Figure 6As shown, the wind turbine generator status monitoring interface can include an original waveform image 25 and a real-time transformed waveform image 26. The original waveform image 25 is a waveform diagram of the operating parameters before transformation by the transformation algorithm, while the real-time transformed waveform image 26 is a waveform diagram of the operating parameters after transformation by the transformation algorithm. The terminal 12 can cache the acquired operating parameters, transform the cached operating parameters using the transformation algorithm, and generate a transformed waveform diagram. The data length of the cached operating parameters can be set according to the scenario, requirements, etc. The cached operating parameters can be replaced in real time according to the "first-in, first-out" principle of the data flow. That is, when it is necessary to cache newly acquired operating parameters, the operating parameters with the earliest acquisition time among the cached operating parameters can be deleted from the cache, and the newly acquired operating parameters can be cached.

[0064] In some examples, after the terminal 12 obtains the operating parameters from the wind turbine generator main control module 15 through the switch 13, it can parse and process the operating parameters and classify them into arrays according to their format. That is, the operating parameters in the same array have the same format, while the operating parameters in different arrays have different formats, which makes it easier for the terminal 12 to run the program to extract the operating parameters from the array.

[0065] In some embodiments, terminal 12 is also used to obtain the acquisition time of operating parameters, and generate a data file based on the operating parameters, the acquisition time of the operating parameters, and the file segment length. When the wind turbine generator main control module 15 sends operating parameters to terminal 12 through switch 13, it can also send the acquisition time of the operating parameters to terminal 12. After obtaining the acquisition time of the operating parameters, the terminal can store the operating parameters and the acquisition time of the operating parameters as a data file. The acquisition time in the data file can be implemented in the form of a timestamp. The length of the data file is the file segment length. The file segment length can be modified by initializing the data file. The format of the data file is not limited here; for example, the data file can be a comma-separated values ​​(CSV) format file. The data file can also be output in the form of a data compressed package, which can be determined according to the data processing input, whether the data file needs to be packaged and compressed. The data processing input can be the user's operation input to terminal 12, which is not limited here.

[0066] In this embodiment, terminal 12 can obtain real-time operating parameters of the wind turbine generator set during safety function testing from the main control module 15 of the wind turbine generator set via switch 13. During the safety function testing process, terminal 12 can synchronously monitor and analyze the status of the wind turbine generator set, quickly determine whether the wind turbine generator set has executed the safety function protection mechanism as expected, and whether the safety function protection mechanism is effective, etc. There is no need to wait for the safety function test to end before exporting the operating data for analysis, which improves the efficiency and accuracy of safety function testing.

[0067] The following is a specific example to illustrate the wind turbine generator safety function testing system in the above embodiments.

[0068] The terminal 12 in the wind turbine generator safety function testing system can be specifically implemented as a laptop computer. The wind turbine generator 11 is equipped with two or more switches 13. One switch 13 is located at the base of the wind turbine generator 11 tower and has a communication interface. Another switch 13 can be located in the nacelle of the wind turbine generator 11. The nacelle of the wind turbine generator 11 houses a test control module 14 and a wind turbine generator main control module 15. The test control module 14 can be specifically implemented as a test control PLC, and the wind turbine generator main control module 15 can be specifically implemented as a wind turbine generator main control PLC. Both the test control PLC and the wind turbine generator main control PLC have communication interfaces. The test control PLC can be connected to the switch 13 located in the nacelle of the wind turbine generator set 11 via optical fiber. Similarly, the main control PLC of the wind turbine generator set can also be connected to the switch 13 located in the nacelle of the wind turbine generator set 11 via optical fiber. In other words, both the test control PLC and the main control PLC can communicate with the switch 13 located in the nacelle of the wind turbine generator set 11. The switch 13 located in the nacelle of the wind turbine generator set 11 is connected to a switch 13 located at the base of the wind turbine generator set 11 via optical fiber.

[0069] Laptops are portable, and when wind turbine safety function tests are required, personnel can connect the laptop to a switch 13 located at the base of the wind turbine 11 via fiber optic cable, enabling communication between the laptop and the switch 13. The switch 13 at the base of the wind turbine 11 can communicate with a switch 13 located in the nacelle of the wind turbine 11. Therefore, through the switch 13, the laptop can communicate with the test control PLC and the main control PLC of the wind turbine 11. Communication between the laptop, switch 13, test control PLC, and main control PLC of the wind turbine 11 can be achieved via an RJ45 network. Since the wind turbine 11 already has an internal RJ45 network, to conduct wind turbine safety function tests, it is only necessary to connect the laptop's communication interface to the communication interface of the switch 13 in the nacelle of the wind turbine 11 via fiber optic cable. This eliminates the need for large-scale modifications to the wind turbine 11, and the process of accessing the wind turbine safety function testing system is convenient, quick, and easy to operate.

[0070] A wind turbine safety function testing program can be installed on the laptop. Operators, i.e., users, can operate the program through its interface on the laptop to trigger safety function tests, obtain operational parameters during the test, and view these parameters. The wind turbine safety function testing program can be developed using LabVIEW or other programming languages; this is not a limitation.

[0071] The laptop, switch 13, test control PLC, and wind turbine main control PLC communicate via fiber optic cable. The Modbus TCP protocol can be used to realize functions such as data reading and command transmission. The laptop, switch 13, test control PLC, and wind turbine main control PLC form an Ethernet network. The use of the Modbus TCP protocol greatly enhances the communication advantages of the Ethernet network formed by the laptop, switch 13, test control PLC, and wind turbine main control PLC, and improves the communication speed. The improved communication speed also improves the efficiency of the entire wind turbine safety function test.

[0072] This application also provides a method for testing the safety functions of a wind turbine generator set, which can be applied to the wind turbine generator set safety function testing system in the above embodiments. For details of the wind turbine generator set safety function testing system, please refer to the relevant descriptions in the above embodiments, which will not be repeated here. Figure 7 This is a flowchart of an embodiment of the wind turbine generator safety function testing method provided in this application. Figure 7 As shown, the wind turbine generator safety function test method may include steps S301 and S302.

[0073] In step S301, during the operation of the wind turbine generator set, the terminal sends control commands for the target safety function test to the test control module through the switch.

[0074] Control commands are generated based on test inputs. Test inputs indicate the target safety function test identifier. The target safety function test identifier is used to characterize the target safety function test.

[0075] In step S302, the test control module changes the state of the functional components associated with the target security function test according to the control command of the target security function test, so as to trigger the target security function test.

[0076] In some examples, the functional components include functional execution parts and / or wind turbine signal lines.

[0077] The specific details of steps S301 to S302 can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[0078] In this embodiment, the wind turbine generator safety function testing system includes a terminal located outside the wind turbine generator, and a switch and a test control module located inside the wind turbine generator. The test control module is connected to the functional components in the wind turbine generator, and the terminal can communicate with the test control module through the switch. During the operation of the wind turbine generator, the terminal sends a control command for the target safety function test to the test control module through the switch. The test control module responds to the control command by changing the state of the functional component associated with the safety function test corresponding to the control command, thereby triggering the safety function test. In this process, the safety function test is triggered interactively and collaboratively by the terminal, the switch, and the test control module, without requiring manual triggering by personnel. This avoids situations where personnel are located in the nacelle of a running wind turbine generator during the safety function test, reducing the safety risks for personnel during the safety function test. Moreover, the safety function test in this embodiment meets the standard requirements of relevant organizations in the field of wind power technology. The terminal is portable, and the wind turbine generator safety function testing system can be quickly installed in wind farms, reducing labor and time costs.

[0079] In some embodiments, the test control module includes a control unit and an input / output unit, the control unit being connected to the input / output unit. The input / output unit includes one or more relays, the relays being connected to the functional component. Figure 8 A flowchart of another embodiment of the wind turbine generator safety function test method provided in this application. Figure 8 and Figure 7 The difference is that, Figure 7 Step S302 can be further refined as follows: Figure 8 Step S3021 in the process.

[0080] In step 3021, the control unit controls the state of the relay switching switch connected to the functional component associated with the target safety function test according to the control command of the target safety function test, so as to change the state of the functional component associated with the target safety function test and trigger the target safety function test.

[0081] The details of step 3021 can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[0082] In some embodiments, the target security function test identifier includes target point table address data bits, which store control instructions for the target security function test. Figure 9 A flowchart of yet another embodiment of the wind turbine generator safety function testing method provided in this application. Figure 9 and Figure 7 The difference is that,Figure 9 The wind turbine generator set safety function test method shown may also include steps S303 and S304.

[0083] In step S303, the terminal determines the target point table address data bits based on the test input.

[0084] In step S304, the terminal accesses the target point table address data bits to obtain the control instructions for the target security function test stored in the target point table address data bits.

[0085] Steps S303 to S304 can be executed before step S301. For details of steps S303 to S304, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0086] In some embodiments, the wind turbine generator set safety testing system further includes a wind turbine generator set main control module located within the wind turbine generator set, which is communicatively connected to a switch. Figure 10 A flowchart of yet another embodiment of the wind turbine generator safety function test method provided in this application. Figure 10 and Figure 7 The difference is that, Figure 10 The wind turbine generator set safety function test method shown may also include steps S305 and S306.

[0087] In step S305, the wind turbine generator main control module sends the wind turbine generator's operating parameters to the terminal via the switch.

[0088] In step S306, the terminal displays the wind turbine generator status monitoring interface based on the operating parameters.

[0089] In some examples, the wind turbine generator status monitoring interface includes one or more of the following: a data display area, a data list, a control command operation area, a single-channel oscilloscope image, a multi-channel oscilloscope image, and a real-time waveform image.

[0090] The specific details of steps S305 and S306 can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[0091] In some embodiments, the terminal may also obtain the collection time of the operating parameters, and generate a data file based on the operating parameters, the collection time of the operating parameters, and the file segmentation length. For details, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0092] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. For method embodiments, relevant parts can be referred to the description section of system embodiments. This application is not limited to the specific steps and structures described above and shown in the figures. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application. Furthermore, for the sake of brevity, detailed descriptions of known methods and techniques are omitted here.

[0093] The foregoing flowcharts and / or block diagrams of methods and systems according to embodiments of this application have described various aspects of the present application. It should be understood that each block in the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to create a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowcharts and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0094] Those skilled in the art will understand that the above embodiments are exemplary and not restrictive. Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on a study of the drawings, specification, and claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other means or steps; the quantifier "a" does not exclude a plurality; the terms "first" and "second" are used to identify names and not to indicate any particular order. No reference numerals in the claims should be construed as limiting the scope of protection. The functionality of multiple parts appearing in the claims can be implemented by a single hardware or software module. The appearance of certain technical features in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A safety function testing system for wind turbine generator sets, characterized in that, It includes a terminal located outside the wind turbine generator set, and a switch and a test control module located inside the wind turbine generator set. The terminal is communicatively connected to the switch, and the switch is communicatively connected to the test control module. The terminal is used to send control commands for target safety function testing to the test control module through the switch during the operation of the wind turbine generator set. The control commands are generated based on test inputs, the test inputs indicate a target safety function test identifier, and the target safety function test identifier is used to characterize the target safety function test. The test control module is configured to connect to the functional components in the wind turbine generator set, and is used to change the state of the functional components associated with the target safety function test according to the control command of the target safety function test, so as to trigger the target safety function test; The test control module includes a control unit and an input / output unit. The control unit is connected to the input / output unit. The input / output unit includes one or more relays. The relays are connected to the functional components. Each relay serves as a trigger function interface, and each relay corresponds to triggering a safety function test.

2. The system according to claim 1, characterized in that, The control unit is used to control the state of the relay switching connected to the functional component associated with the target safety function test according to the control command of the target safety function test, so as to change the state of the functional component associated with the target safety function test.

3. The system according to claim 1, characterized in that, The functional components include functional execution parts and / or wind turbine generator signal lines.

4. The system according to claim 1, characterized in that, The target security function test identifier includes target point table address data bits, which store the control instructions for the target security function test.

5. The system according to claim 1, characterized in that, The test control module is located in the nacelle of the wind turbine generator set.

6. The system according to claim 1, characterized in that, It also includes a wind turbine main control module located within the wind turbine generator set, which is communicatively connected to the switch; The wind turbine generator main control module is used to send the operating parameters of the wind turbine generator in the target safety function test to the terminal through the switch; The terminal is also used to display a wind turbine generator status monitoring interface based on the operating parameters.

7. The system according to claim 6, characterized in that, The wind turbine generator status monitoring interface includes one or more of the following: Data display area, data list, control command operation area, single-channel oscilloscope image, multi-channel oscilloscope image, real-time waveform image.

8. The system according to claim 6, characterized in that, The terminal is also used to obtain the acquisition time of the operating parameters, and generate a data file based on the operating parameters, the acquisition time of the operating parameters, and the file segmentation length.

9. A method for testing the safety functions of a wind turbine generator set, characterized in that, An application is provided in a wind turbine generator safety testing system. The system includes a terminal located outside the wind turbine generator, and a switch and a test control module located inside the wind turbine generator. The terminal is communicatively connected to the switch, and the switch is communicatively connected to the test control module. The test control module is configured to connect to functional components within the wind turbine generator. The test control module includes a control unit and an input / output unit. The control unit is connected to the input / output unit, and the input / output unit includes one or more relays. Each relay is connected to a functional component, and each relay corresponds to triggering a safety function test. The method includes: During the operation of the wind turbine generator set, the terminal sends a control command for the target safety function test to the test control module through the switch. The control command is generated based on the test input, which indicates the target safety function test identifier. The target safety function test identifier is used to characterize the target safety function test. The test control module changes the state of the functional components associated with the target security function test according to the control command of the target security function test, so as to trigger the target security function test.

10. The method according to claim 9, characterized in that, The test control module, according to the control command of the target security function test, changes the state of the functional components associated with the target security function test to trigger the target security function test, including: The control unit controls the state of the relay switching switch connected to the functional component associated with the target safety function test according to the control command of the target safety function test, so as to change the state of the functional component associated with the target safety function test and trigger the target safety function test.

11. The method according to claim 9, characterized in that, The functional components include functional execution parts and / or wind turbine generator signal lines.

12. The method according to claim 9, characterized in that, The target security function test identifier includes target point table address data bits, which store the control commands for the target security function test. Before sending the control command for the target security function test to the test control module via the switch, the method further includes: The terminal determines the target point table address data bits based on the test input; The terminal accesses the target point table address data bits to obtain the control instructions for the target security function test stored in the target point table address data bits.

13. The method according to claim 9, characterized in that, The wind turbine generator set safety testing system also includes a wind turbine generator set main control module located within the wind turbine generator set, which is communicatively connected to the switch. The method further includes: The wind turbine generator main control module sends the wind turbine generator's operating parameters to the terminal through the switch; The terminal displays a wind turbine generator status monitoring interface based on the operating parameters.

14. The method according to claim 13, characterized in that, The wind turbine generator status monitoring interface includes one or more of the following: Data display area, data list, control command operation area, single-channel oscilloscope image, multi-channel oscilloscope image, real-time waveform image.

15. The method according to claim 13, characterized in that, Also includes: The terminal acquires the time of the acquisition of the operating parameters; The terminal generates a data file based on the operating parameters, the acquisition time of the operating parameters, and the file segmentation length.

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