Wind generating set safety chain tester and rotating speed overspeed monitoring system

Abstract

The utility model provides a wind generating set safety chain tester and a rotating speed overspeed monitoring system, comprising a tester body which is provided with a power interface, a touch display screen, a first rotating speed interface, a second rotating speed interface and a power switch, and the first rotating speed interface and the second rotating speed interface are both used for connecting the rotating speed overspeed monitoring system; a gear ratio setting window, a first rotating speed setting window, a second rotating speed before-transformation-ratio setting window, a second rotating speed after-transformation-ratio setting window, a starting key and a synchronous key are arranged in the touch display screen; and the functional assembly is arranged in the touch display screen and is used for setting operation parameters. Due to the fact that the gear ratio setting window, the first rotating speed setting window, the second rotating speed before-transformation-ratio setting window and the second rotating speed after-transformation-ratio setting window are arranged on the tester, when all parts of the safety chain system of the wind generating set are tested, the rotating speed overspeed monitoring part in the safety chain system of the wind generating set can be effectively tested.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing the speed over - speed monitoring system in the safety chain system of a wind turbine generator set, and particularly relates to a safety chain tester for a wind turbine generator set and a speed over - speed monitoring system. Background Art

[0002] The safety chain system of a wind turbine generator set is a detection system specially used to detect the operation and power generation reliability of a wind turbine generator set. In the system, the main detection part is the speed over - speed monitoring part, which is mainly used to detect whether the internal generator speed and impeller speed of the wind turbine generator set exceed the normal speed level during operation, so as to avoid safety accidents caused by speed over - speed.

[0003] However, during the use of the existing safety chain detection device for a wind turbine generator set, it can only simply detect whether each part of the safety chain system of the wind turbine generator set is operating normally and whether the program logic is reasonable. It cannot effectively test the speed over - speed monitoring part in the safety chain system of the wind turbine generator set, and adjust the operation parameters of the speed over - speed monitoring part according to the test, thus ignoring whether the monitoring state of the speed over - speed monitoring part is normal, and finally resulting in poor accuracy of the detection of the safety chain detection device for the wind turbine. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a safety chain tester for a wind turbine generator set and a speed over - speed monitoring system, so as to solve the technical defect that during the use of the existing safety chain detection device for a wind turbine generator set, it can only simply detect whether each part of the safety chain system of the wind turbine generator set is operating normally and whether the program logic is reasonable. It cannot effectively test the speed over - speed monitoring part in the safety chain system of the wind turbine generator set, and adjust the operation parameters of the speed over - speed monitoring part according to the test, thus ignoring whether the monitoring state of the speed over - speed monitoring part is normal, and finally resulting in poor accuracy of the detection of the safety chain detection device for the wind turbine.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions:

[0006] In the first aspect, a safety chain tester for a wind turbine generator set is provided, including:

[0007] A tester body, on which there are a power interface, a touch display screen, a first speed interface, a second speed interface, and a power switch. Both the first speed interface and the second speed interface are used to connect to the speed over - speed monitoring system;

[0008] The touch display screen is internally provided with a gear ratio setting window, a first speed setting window, a second speed ratio setting window before change, a second speed ratio setting window after change, a start button, and a synchronization button;

[0009] Functional components are arranged inside the touch display screen and are used for setting operation parameters.

[0010] Further, the first rotational speed interface is a generator rotational speed interface, and the generator rotational speed interface is connected to the rotational speed overspeed monitoring system through a connecting wire and is used for transmitting generator rotational speed data into the tester body.

[0011] Further, the second rotational speed interface is an impeller rotational speed interface, and the impeller rotational speed interface is connected to the rotational speed overspeed monitoring system through a connecting wire and is used for transmitting impeller rotational speed data into the tester body.

[0012] Further, the gear ratio setting window is used for setting gear ratio values.

[0013] Further, the first rotational speed setting window is used for setting generator rotational speed values.

[0014] Further, the second rotational speed ratio before setting window is used for setting the value of the impeller rotational speed ratio before change.

[0015] Further, the second rotational speed ratio after setting window is used for displaying the value of the impeller rotational speed ratio after change.

[0016] Further, the functional components include a first functional parameter adjustment button, a second functional parameter adjustment button, a third functional parameter adjustment button, and a fourth functional parameter adjustment button, and the first functional parameter adjustment button, the second functional parameter adjustment button, the third functional parameter adjustment button, and the fourth functional parameter adjustment button are arranged at intervals in sequence.

[0017] Further, the values adjusted by the first functional parameter adjustment button, the second functional parameter adjustment button, the third functional parameter adjustment button, and the fourth functional parameter adjustment button are different.

[0018] In a second aspect, a rotational speed overspeed monitoring system is provided, which includes a system body, and the above-mentioned wind turbine safety chain tester is installed on the system body.

[0019] The beneficial effects of the present utility model are as follows:

[0020] Since a gear ratio setting window, a first rotational speed setting window, a second rotational speed ratio before setting window, and a second rotational speed ratio after setting window are arranged on the tester, when testing each part of the wind turbine generator safety chain system, it can effectively test the rotational speed overspeed monitoring part in the wind turbine generator safety chain system, adjust the operation parameters of the rotational speed overspeed monitoring part according to the test, and at the same time can ensure the normal monitoring state of the rotational speed overspeed monitoring part, improving the detection accuracy of the wind turbine safety chain detection device. Description of the Drawings

[0021] Figure 1 This is the top view of the structure of the safety chain tester for wind turbines provided by the present utility model;

[0022] Wherein: 1. Battery indicator; 2. External power supply indicator; 3. Equipment working indicator; 4. Power interface; 5. First speed interface; 6. Second speed interface; 7. Touch display screen; 8. Power switch; 9. Gear ratio setting window; 10. First speed setting window; 11. Second speed ratio before setting window; 12. Second speed ratio after setting window; 13. Start button; 14. Synchronization button; 15. Communication indicator; 16. First function parameter adjustment button; 17. Second function parameter adjustment button; 18. Third function parameter adjustment button; 19. Fourth function parameter adjustment button. Detailed Implementation Modes

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Components of the embodiments of the present utility model usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0025] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the embodiments of the present utility model, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the products of the present utility model are usually placed during use, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0027] In addition, when the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0028] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] As Figure 1 shown, this embodiment provides a safety chain tester for a wind turbine generator, including: a tester body, on which there are a power interface 4, a touch display screen 7, a first speed interface 5, a second speed interface 6, and a power switch 8. Both the first speed interface 5 and the second speed interface 6 are used to connect to a speed overspeed monitoring system; a gear ratio setting window 9, a first speed setting window 10, a second speed ratio before setting window 11, a second speed ratio after setting window 12, a start button 13, and a synchronization button 14 are arranged in the touch display screen 7; a function component is arranged in the touch display screen 7 and is used to set operation parameters. By using this safety chain tester for a wind turbine generator, it can be used in conjunction with regular inspections, and can simulate the real speed (adjustable) of the wind turbine generator one-to-one under static conditions, so as to conduct safety chain overspeed tests on wind turbine generators of various brands, which not only improves the reliability and safety of the safety chain overspeed test, but also saves the time waste of repeated tower climbing caused by the inability to conduct overspeed tests in light wind weather. It can also detect the encoder, and can detect the encoder in various production sites such as the warehouse and inside the wind turbine generator, and can quickly detect the quality of the encoder in use, and give intuitive and accurate diagnostic results to maintenance personnel; at the same time, it conducts in-warehouse inspections on newly purchased and repaired encoders to check whether there are unqualified devices. It can also assist in eliminating faults related to speed, and quickly determine whether the fault point is a problem with the detection system or the encoder spare parts. As Figure 1As shown in the figure, the first speed interface 5 is the generator speed interface 5. The generator speed interface 5 is connected to the speed overspeed monitoring system through a connecting wire, and is used to transmit the generator speed data into the tester body. The second speed interface 6 is the impeller speed interface. The impeller speed interface is connected to the speed overspeed monitoring system through a connecting wire, and is used to transmit the impeller speed data into the tester body. The gear ratio setting window 9 is used to set the gear ratio value. The first speed setting window 10 is used to set the generator speed value. The second pre-ratio setting window 11 for the impeller speed is used to set the value before the impeller speed ratio. The second post-ratio setting window 12 for the impeller speed is used to display the value after the impeller speed ratio. The functional components include the first functional parameter adjustment button 16, the second functional parameter adjustment button 17, the third functional parameter adjustment button 18, and the fourth functional parameter adjustment button 19. The first functional parameter adjustment button 16, the second functional parameter adjustment button 17, the third functional parameter adjustment button 18, and the fourth functional parameter adjustment button 19 are arranged at intervals in sequence. Among them, the values adjusted by the first functional parameter adjustment button 16, the second functional parameter adjustment button 17, the third functional parameter adjustment button 18, and the fourth functional parameter adjustment button 19 are different. When conducting a test, first insert the power cord into the power interface 4 to turn on the power. At this time, the external power indicator light 2 lights up. The device has a built-in battery, and when using the internal battery for testing, the power cord does not need to be connected. Then connect the encoder wire of the wind turbine generator set and the encoder wire of the slip ring to the first speed interface 5 and the second speed interface 6 of the tester body respectively. Press the power switch 8 to turn on the tester, and the device working indicator light 3 and the power indicator 1 light up. At this time, the touch display screen 7 enters the initial interface. Next, click on the touch display screen 7, select the gear ratio setting window 9. At this time, an edit box and a soft keyboard will pop up. Enter the parameters by touching the soft keyboard. After the input is completed, click OK to save the parameters. When conducting a generator speed test, click on the touch screen, select the first speed setting window 10, and an edit box and a soft keyboard will pop up. Enter the parameters by touching the soft keyboard. Set the generator speed to 2100. After the input is completed, click OK to save the parameters. Press the start button 13, and the start button 13 changes from red to green, indicating that the start of the test is successful. After the test starts, the generator speed can be viewed on the fan control panel. The speed is 2100 revolutions, and at the same time, this speed exceeds the fan speed alarm limit value, and the fan reports a "generator overspeed" fault. During the test process, relevant parameters can also be adjusted through the first functional parameter adjustment button 16, the second functional parameter adjustment button 17, the third functional parameter adjustment button 18, and the fourth functional parameter adjustment button 19.

[0030] When conducting an impeller speed test, click on the touch screen, select the second pre-ratio setting window 11 for the impeller speed. At this time, an edit box and a soft keyboard will pop up. Enter the parameters by touching the soft keyboard. Set the impeller speed to 21. After the input is completed, click OK to save the parameters. Click the start button 13, and the button changes from red to green, indicating that the start of the test is successful.

[0031] After the test is started, the impeller speed can be viewed on the fan control panel. The speed is 21 revolutions, and at the same time, this speed exceeds the fan speed alarm limit value, and the fan reports a "runner overspeed" fault; when the power switch 8 is pressed again to turn on the device, the device working indicator 3, the power indicator 1, and the touch display screen 7 go out, the device is turned off, and finally the device and the cables are sorted out, and the test is completed.

[0032] As a whole, the wind turbine safety chain tester in this embodiment has the functions of a high-performance embedded microprocessor, integrates a high-speed counter and a digital signal processing module, and can realize multi-channel signal synchronous acquisition and data fusion. The main control unit uses real-time overspeed detection and dynamic threshold judgment algorithms to analyze and process the speed signal in real time, adaptively adjust the detection threshold, accurately identify the overspeed state of the fan, and at the same time complete the data exchange with the display unit. The display unit uses a [X]-inch touch screen as the man-machine interface of the device, which can display fault alarm information, detection data and operation status in real time, and integrates a remote feedback mechanism to transmit the overspeed detection data and fault status to the remote monitoring center, supporting real-time monitoring and data storage, and providing fast and accurate status information presentation and management for the safe operation of the fan.

[0033] Application example:

[0034] Equipment assembly and test preparation

[0035] First, place the tester body near the wind turbine and connect a stable power supply through the power interface; then, use the first speed interface and the second speed interface to connect to the speed overspeed monitoring system of the wind turbine respectively.

[0036] On the touch display screen, open the gear ratio setting window, the first speed setting window, the second speed ratio before setting window and the second speed ratio after setting window in sequence. According to the actual parameters of the wind turbine, input the corresponding gear ratio, the first speed value, the second speed ratio before value and the second speed ratio after value.

[0037] Function component setting and operation

[0038] On the touch display screen, set the operation parameters through the function components. Different test modes (such as normal mode, fault mode, etc.) can be selected according to actual needs, and corresponding test conditions (such as speed, time, etc.) can be set.

[0039] Click the start button to start the test task. At this time, the tester will simulate the operation of the wind turbine under different working conditions according to the preset parameters and record the relevant data at the same time.

[0040] Test result analysis and processing

[0041] After the test is completed, the test data can be synchronized to a computer or other devices through the synchronization button. By analyzing the test results, the safety performance of the wind turbine generator can be evaluated, and potential fault hazards can be detected in a timely manner.

[0042] Maintenance and Optimization

[0043] According to the test results, the control system of the wind turbine generator can be adjusted and optimized to improve its stability and safety. At the same time, regularly check the hardware and software parts of the tester to ensure its normal operation.

[0044] In summary, the safety chain tester of the wind turbine generator of the present utility model can help maintenance personnel detect and solve problems that may occur in the wind turbine generator in a timely manner, thereby improving the overall performance and safety of the wind turbine generator.

[0045] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A wind turbine safety chain tester, characterized in that: include: A tester body, on which a power interface (4), a touch display screen (7), a first speed interface (5), a second speed interface (6) and a power switch (8) are provided, wherein the first speed interface (5) and the second speed interface (6) are both used for connecting to a speed overspeed monitoring system; The touch display screen (7) is provided with a gear ratio setting window (9), a first speed setting window (10), a second speed ratio pre-setting window (11), a second speed ratio post-setting window (12), a start button (13) and a synchronization button (14); A functional component is arranged in the touch display screen (7) and is used to set operating parameters.

2. The tester according to claim 1, characterized in that: The first speed interface (5) is a generator speed interface (5), and the generator speed interface (5) is connected to the speed overspeed monitoring system via a connecting line, and is used to transmit generator speed data to the tester body.

3. The tester according to claim 1, characterized in that: The second speed interface (6) is an impeller speed interface, which is connected to the speed overspeed monitoring system via a connecting line and is used to transmit the impeller speed data to the tester body.

4. The tester according to claim 1, characterized in that: The gear ratio setting window (9) is used to set the gear ratio value.

5. The tester according to claim 1, characterized in that: The first speed setting window (10) is used to set the generator speed value.

6. The tester according to claim 1, characterized in that: The second speed ratio front setting window (11) is used to set the impeller speed ratio front value.

7. The tester according to claim 1, characterized in that: The second speed ratio setting window (12) is used to display the value of the impeller speed ratio after the speed ratio is changed.

8. The tester according to claim 1, characterized in that: The functional component comprises a first functional parameter adjustment button (16), a second functional parameter adjustment button (17), a third functional parameter adjustment button (18) and a fourth functional parameter adjustment button (19), wherein the first functional parameter adjustment button (16), the second functional parameter adjustment button (17), the third functional parameter adjustment button (18) and the fourth functional parameter adjustment button (19) are arranged in sequence and spaced apart.

9. The tester according to claim 8, characterized in that: The first function parameter adjustment button (16), the second function parameter adjustment button (17), the third function parameter adjustment button (18) and the fourth function parameter adjustment button (19) adjust different values.

10. A speed overspeed monitoring system, comprising a system body, characterized in that: The wind turbine generator set safety chain tester according to any one of claims 1 to 9 is installed on the system body.

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