Detection adjusting device and adjusting method of yaw controller

Abstract

The invention provides a detection and adjustment device and an adjustment method of a yaw controller, which are used for detecting and adjusting the yaw controller, can effectively detect the quality of the yaw controller, accurately adjust the zero position of the yaw controller, trigger the limit position and display judgment of the zero position through a signal lamp, and improve the accuracy of the detection and adjustment of the yaw controller. The number of turns of rotation is displayed on the display screen more visually through the display screen, observation is more visual, operation is simpler and more convenient, and the problems that wind alignment is inaccurate and yaw errors are large due to inaccurate adjustment of the yaw controller, a fan cannot align wind in time and is connected to a grid in time, and the service life and the generating capacity of the fan are affected are solved. Errors caused by manual adjustment of the number of turns of the yaw cam are eliminated, accurate wind alignment is ensured, and cable twisting is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor structures, and in particular to a detection and adjustment device and an adjustment method for a yaw controller. Background Art

[0002] At present, wind turbines generally use yaw controllers (yaw cams) to detect the extreme positions of the nacelle. Due to the constant changes in wind direction, the turbines are in a frequent yaw state. Some wind turbines also need to yaw to the wind even when they are stopped, which puts a great test on the yaw mechanism.

[0003] Among them, the quality of the yaw controller and the accuracy of the adjustment method have become key factors. The main function of the yaw controller is to control the rotation of the wind turbine cabin around the center line of the tower, so that the wind turbine rotor can always be aligned with the incoming wind direction to maximize the capture of wind energy and improve power generation efficiency. In special circumstances such as excessive wind speed and drastic changes in wind direction, the yaw controller can also adjust the yaw angle to keep the wind turbine in a safe operating state to avoid damage to the wind turbine due to factors such as strong winds. If the yaw controller is not sensitive and the adjustment method is inaccurate, it will lead to inaccurate wind alignment and large yaw errors, causing the wind turbine to be unable to face the wind in time and connect to the grid in time, affecting the life of the wind turbine and power generation. In addition, if the yaw controller fails, it will not trigger the cable release in time when the yaw reaches the limit, causing cable damage, and severe cases will cause fire and tower collapse.

[0004] The existing yaw controller uses the traditional manual adjustment method of the yaw cam. Manually adjusting the number of yaw cam turns can easily cause errors. If the limit position is too small, it will cause inaccurate wind readings and yaw during shutdown and cable release, affecting power generation. If the limit position is too large, it will cause cable twisting and lead to unsafe incidents. Summary of the Invention

[0005] The object of the present invention is to provide a detection and adjustment device and an adjustment method for a yaw controller, so as to overcome the problem of large errors in manual adjustment of the yaw controller in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A detection and adjustment device for a yaw controller includes a display mechanism, wherein the display mechanism is provided with a display screen, a plurality of buttons, and a plurality of indicator lights electrically connected to the yaw controller, wherein the plurality of buttons are respectively connected to the display screen; The display mechanism is externally connected to a mechanical plug, and a plurality of buttons are connected to the mechanical plug, and the mechanical plug is used to connect to the adjustment screw on the yaw controller; There are five buttons, namely, an absolute 0° position adjustment button, a right limit position adjustment button, a left limit position adjustment button, a gear clockwise adjustment button, and a gear counterclockwise adjustment button.

[0007] Furthermore, the display mechanism is internally provided with a driving gear, a PLC and a counter, the plurality of buttons are sequentially connected to the driving gear, the PLC and the counter, the counter is connected to the display screen, and the plurality of buttons are connected to the mechanical plug via the driving gear; The display mechanism is also provided with a reset button connected to the counter.

[0008] Furthermore, a three-axis acceleration sensor is provided between the driving gear and the PLC.

[0009] Furthermore, there are four indicator lights on the display mechanism, and the four indicator lights are electrically connected to the cam1-cam4 interfaces on the yaw controller respectively.

[0010] In a second aspect, a detection and adjustment method of a yaw controller is provided, comprising the following steps: Connect the detection and adjustment device to the yaw controller; Initialize the yaw controller status, press the absolute 0° position adjustment button on the display mechanism of the detection and adjustment device, and adjust the yaw controller to the absolute 0° position through the mechanical plug. The yaw controller will make a sound and the corresponding indicator light will go out. Press the gear clockwise adjustment button and the right limit position adjustment button on the display mechanism respectively, record the number of times the clockwise adjustment button is pressed and display it on the display screen, adjust the yaw controller to the right limit position through the mechanical plug, the yaw controller will make a sound and the corresponding indicator light will go out; Adjust the yaw controller to the absolute 0° position; Press the gear counterclockwise adjustment button and the left limit position adjustment button on the display mechanism respectively, record the number of times the counterclockwise adjustment button is pressed and display it on the display screen, adjust the yaw controller to the left limit position through the mechanical plug, the yaw controller will make a sound and the corresponding indicator light will go out; After the detection is completed, remove the detection and adjustment device.

[0011] Furthermore, the process of adjusting the yaw controller to the absolute 0° position is as follows: Press the reset button to clear the display screen to zero, and press the gear counterclockwise adjustment button to a position close to absolute 0°; Press the absolute 0° position adjustment button to adjust the yaw controller to the absolute 0° position and the corresponding indicator light goes out.

[0012] Furthermore, the process of adjusting the yaw controller to the right limit position is as follows: Press the gear clockwise adjustment button and adjust the yaw controller to the right limit position through the mechanical plug; Press the right limit position adjustment button to adjust the yaw controller to the right limit position through the mechanical plug, and the corresponding indicator light goes out.

[0013] Furthermore, the process of adjusting the yaw controller to the left limit position is as follows: Press the gear counterclockwise adjustment button and adjust the yaw controller to the left limit position through the mechanical plug; Press the left limit position adjustment button and adjust the yaw controller to the left limit position through the mechanical plug, and the corresponding indicator light goes out.

[0014] Furthermore, there are four indicator lights, namely, an absolute 0° position indicator light, a right limit position indicator light, a left limit position indicator light and a fault indicator light.

[0015] Furthermore, after the detection is completed, before the detection and adjustment device is removed, the detection and adjustment device is first adjusted to the absolute 0° position.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a detection and adjustment device for a yaw controller, which is used to detect and adjust the yaw controller. Unlike traditional adjustment devices, the device can be adjusted more intuitively and conveniently through the display of the number of turns on a display screen and the turning on and off of a signal light, thereby avoiding the problem that inaccurate adjustment of the yaw controller causes inaccurate wind alignment and large yaw errors, resulting in the wind turbine being unable to be aligned with the wind and connected to the grid in time, affecting the life and power generation of the wind turbine. The device eliminates the error caused by manual adjustment of the number of turns, ensures accurate wind alignment, avoids cable twisting, improves the reliability of the equipment, and improves the availability of the equipment, with significant effects.

[0017] The present invention also provides a detection and adjustment method for a yaw controller. Compared with the traditional adjustment method, the method can effectively detect the quality of the yaw controller and accurately adjust the zero position of the yaw controller. The trigger limit position and the zero position are judged by the display of a signal light, and the number of rotations is more intuitively displayed on the screen through a display screen, which makes observation more intuitive and operation easier. It eliminates the error caused by manual adjustment of the number of yaw cam circles, avoids the inaccurate wind response and shutdown and cable unwinding yaw affecting power generation due to too small a limit position, and avoids the cable twisting and unleashing unsafe events caused by too large a limit position. The method is suitable for detection on and under the tower and has universality for the detection of yaw controllers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of a detection and adjustment device of a yaw controller in an embodiment of the present invention; Figure 2 This is a schematic diagram of an application of a detection and adjustment device of a yaw controller in an embodiment of the present invention; Figure 3 The figure is a flow chart of a detection and adjustment method of a yaw controller in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the inventive product is typically placed when in use. These terms are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0024] The present invention is described in further detail below with reference to the accompanying drawings: like Figure 1As shown, the present invention provides a detection and adjustment device for a yaw controller, comprising a display mechanism, the display mechanism being externally connected to a mechanical plug, wherein the mechanical plug is used to connect to an adjustment screw on the yaw controller to implement detection and adjustment of the yaw controller; a display screen, a plurality of buttons, and an indicator light are mounted on the display mechanism, the indicator light being used to electrically connect to the yaw controller to display the status of the yaw controller; the buttons being connected to the display screen, and the display screen being able to display the number of times the buttons have been pressed; Specifically, there are 5 buttons, namely the absolute 0° position adjustment button, the right limit position adjustment button, the left limit position adjustment button, the gear clockwise adjustment button, and the gear counterclockwise button. Among them, the right limit position adjustment button and the gear clockwise adjustment button are used to adjust the right limit position of the yaw controller, the gear counterclockwise button and the left limit position adjustment button are used to adjust the left limit position of the yaw controller, and the absolute 0° position adjustment button is used to adjust the yaw controller state initialization.

[0025] A driving gear, a three-axis acceleration sensor, a PLC, and a counter are arranged inside the display mechanism. A plurality of buttons, the driving gear, the three-axis acceleration sensor, the PLC, and the counter are connected in sequence. The counter is used to connect to the display screen, and the number of button presses, i.e., the number of rotations of the yaw controller, is visually displayed on the display screen. The driving gear and PLC are connected through a three-axis acceleration sensor, which collects data on the changes in gear rotation acceleration. The data collected by the three-axis acceleration sensor is transmitted to the microcontroller, which judges the acceleration data. If the judgment is successful, the counter counts and displays the corresponding number of rotations on the display screen, which forms a double verification with the status of the indicator light.

[0026] Optionally, a reset button is also installed on the display mechanism, which is connected to the counter and is used to clear the numbers on the display screen.

[0027] Specifically, multiple buttons are also connected to an external mechanical plug through a driving gear. There are 5 interfaces on the mechanical plug, which are respectively connected to the 5 adjustment screws on the yaw controller. The 5 adjustment screws respectively control the absolute 0° position adjustment of the yaw controller, the connection between left rotation, right rotation, fault adjustment and the small white gear in the middle. The fault adjustment interface does not participate in the work. The small white gear in the middle is used to control the clockwise and counterclockwise adjustment of the yaw controller. Compared with the left and right rotation buttons, the adjustment angle is larger when pressed once.

[0028] In an optional embodiment, as Figure 2As shown, four interfaces are provided on the yaw controller, namely cam1, cam2, cam3 and cam4. Cam1, cam2, cam3 and cam4 on the yaw controller are respectively connected to the indicator lights on the display mechanism. Among them, cam1 on the yaw controller corresponds to the right limit position adjustment button and its indicator light, cam2 on the yaw controller corresponds to the left limit position adjustment button and its indicator light, cam3 on the yaw controller corresponds to the fault indicator light, and cam4 on the yaw controller corresponds to the absolute 0° position adjustment button and its indicator light. The remaining gear clockwise adjustment button, gear counterclockwise adjustment button and reset button are not equipped with indicator lights.

[0029] This device can adjust the yaw controller and verify its zero position. It extends four wires to the yaw controller's cam1-cam4 ports. These four wires correspond to the device's four light bulbs, which are displayed on the detection device. Since cam1-cam4 ports are normally closed, all the corresponding lights are illuminated under normal conditions. When a node is disconnected, the corresponding light bulb goes out. The device also contains a gear mechanism that extends a mechanical plug externally connected to the yaw controller's adjustment screw. This allows for effortless adjustment, and the number of adjustment turns is displayed on the display, making yaw controller adjustment more intuitive and accurate.

[0030] The present invention also provides a detection and adjustment method for a yaw controller, such as Figure 3 As shown, the following steps are included: Connect the detection and adjustment device to the yaw controller; Initialize the yaw controller status, press the absolute 0° position adjustment button on the display mechanism of the detection and adjustment device, and adjust the yaw controller to the absolute 0° position through the mechanical plug. The yaw controller will make a sound and the corresponding indicator light will go out. Press the gear clockwise adjustment button and the right limit position adjustment button on the display mechanism respectively, record the number of times the clockwise adjustment button is pressed and display it on the display screen, adjust the yaw controller to the right limit position through the mechanical plug, the yaw controller will make a sound and the corresponding indicator light will go out; Adjust the yaw controller to the absolute 0° position; Press the gear counterclockwise adjustment button and the left limit position adjustment button on the display mechanism respectively, record the number of times the counterclockwise adjustment button is pressed and display it on the display screen, adjust the yaw controller to the left limit position through the mechanical plug, the yaw controller will make a sound and the corresponding indicator light will go out; After the detection is completed, remove the detection and adjustment device.

[0031] Specifically, the process of adjusting the yaw controller to the absolute 0° position is as follows: Press the reset button to clear the display screen to zero, and press the gear counterclockwise adjustment button to a position close to absolute 0°; Press the absolute 0° position adjustment button to adjust the yaw controller to the absolute 0° position and the corresponding indicator light goes out.

[0032] Accordingly, the steps for checking and adjusting the left limit position of the yaw controller include: Press the gear counterclockwise adjustment button and adjust the yaw controller to the left limit position through the mechanical plug; Press the left limit position adjustment button and adjust the yaw controller to the left limit position through the mechanical plug, and the corresponding indicator light goes out.

[0033] The process of adjusting the yaw controller to the right limit position is: Press the gear clockwise adjustment button and adjust the yaw controller to the right limit position through the mechanical plug; Press the right limit position adjustment button to adjust the yaw controller to the right limit position through the mechanical plug, and the corresponding indicator light goes out.

[0034] There is no requirement for the order of adjusting the left and right extreme positions of the yaw controller. It is only necessary to adjust the yaw controller to the absolute 0° position after verifying the extreme position in one direction and before adjusting the position in another direction.

[0035] In an optional embodiment, the detection and adjustment method of the yaw controller is as follows: 1. Remove the yaw controller and open the box cover; 2. Loosen the fixing screw in the middle of the cam switch, making sure that cam1 to cam4 can be turned with a screwdriver; 3. Initialize the yaw controller state, adjust cam1 to cam4 according to the position on the drawing, find the absolute 0° position, adjust cam4, press the absolute 0° position adjustment button, and you will hear a "click" sound when it reaches 0° and see the indicator light go out; 4. From the absolute 0° position, press the clockwise adjustment button of the device 36 times, that is, 720°, to drive the gear structure of the device, control the white small gear of the yaw controller to actually operate, and the number of rotations is detected by the three-axis acceleration sensor and transmitted to the microcontroller, which then outputs the number of rotations and displays it on the display; Rotate it clockwise (CW) 36 times (the yaw controller measures the wind turbine within ±720°, and each turn of the button actually rotates about 20°, so it should be rotated 36 times to reach the yaw limit of 720°). Then press the right limit adjustment button on the device to drive and adjust cam 1 of the yaw controller. Find the position where cam 1 changes from 1 to 0 (1 - closed, 0 - open) and the indicator light turns off. This indicates that the right limit position has been reached and the device's right limit calibration is correct. 5. Return to the absolute 0° position. First, press the reset button, then press the counterclockwise button 36 times. The button drives the gear structure of the device to control the white small gear of the yaw controller to actually operate. The three-axis acceleration sensor detects the number of rotations and transmits it to the microcontroller. The microcontroller outputs the number of rotations and displays it on the display. Rotate it counterclockwise (CCW) 36 times. A digital display will appear on the screen. Press the absolute 0° position adjustment button to find the position where cam4 changes from 1 to 0 (you will hear a "click" sound and see the indicator light go out), indicating that it has returned to the absolute 0° position. 6. From the absolute 0° position, press the counterclockwise button of the device 36 times. The button drives the gear structure of the device, controls the white small gear of the yaw controller to actually rotate, and detects the number of rotations through the three-axis acceleration sensor and transmits it to the microcontroller. The microcontroller outputs the number of rotations and displays it on the display. Rotate it counterclockwise (CCW) 36 times (the yaw controller measures the fan's range to ±720°, and one turn of the button actually results in about 20° rotation, so it should be rotated 36 times to reach the yaw limit of 720°). Then press the left limit adjustment button and find the position where the cam2 status changes from 1->0 (1 - closed, 0 - open). The light bulb turns off, indicating that the left limit position has been reached and the device's left limit calibration is correct. 7. Return to the absolute 0° position: First press the reset button, then press the clockwise button of the device 36 times. The button drives the gear structure of the device to control the white small gear of the yaw controller to actually operate, and the number of rotations is detected by the three-axis acceleration sensor and transmitted to the microcontroller. The microcontroller outputs the number of rotations and displays it on the display; Rotate it clockwise (CW) 36 times, and a number will be displayed on the screen. Press the absolute 0° position adjustment button to find the position where cam4 changes from 1 to 0 (you will hear a "click" sound and see the indicator light go out), indicating that it has returned to the absolute 0° position.

[0036] 8. Tighten the large screw in the middle of the cam switch; 9. Reset the device and close the cover of the yaw controller. The adjustment is complete.

[0037] During this adjustment process, cam3 does not need to be adjusted. During the entire adjustment process, you only need to observe that the indicator light corresponding to cam3 is always on. If the bulb corresponding to cam3 is off, you should check whether the circuit is connected correctly. cam3 is the protection node after the trigger limit. If it exceeds 720°, the cam3 node will be triggered and the indicator light will go out, indicating that a fault has occurred.

[0038] This method effectively checks the yaw controller's performance and accurately adjusts its zero position. Applicable to both on- and off-tower testing, it eliminates errors caused by manual adjustments to the yaw cam's rotations. It also avoids extreme positions that are too narrow (less than 720°, resulting in inaccurate wind readings and yaw during shutdowns and cable unwinding, impacting power generation) and avoids extreme positions that are too wide, which can cause cable twisting and unsafe incidents.

[0039] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments and application fields. The above-mentioned specific embodiments are merely illustrative and instructive, and are not restrictive. A person skilled in the art, guided by the description, may devise various forms without departing from the scope of protection of the claims of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A detection and adjustment device for a yaw controller, characterized in that: It includes a display mechanism, wherein the display mechanism is provided with a display screen, a plurality of buttons and a plurality of indicator lights electrically connected to the yaw controller, and the plurality of buttons are respectively connected to the display screen; The display mechanism is externally connected to a mechanical plug, and a plurality of buttons are connected to the mechanical plug, and the mechanical plug is used to connect to the adjustment screw on the yaw controller; There are five buttons, namely, an absolute 0° position adjustment button, a right limit position adjustment button, a left limit position adjustment button, a gear clockwise adjustment button, and a gear counterclockwise adjustment button.

2. The detection and adjustment device of the yaw controller according to claim 1, characterized in that: The display mechanism is internally provided with a driving gear, a PLC and a counter, the plurality of buttons are sequentially connected to the driving gear, the PLC and the counter, the counter is connected to the display screen, and the plurality of buttons are connected to the mechanical plug via the driving gear; The display mechanism is also provided with a reset button connected to the counter.

3. The detection and adjustment device of the yaw controller according to claim 2, characterized in that: A three-axis acceleration sensor is provided between the driving gear and the PLC.

4. The detection and adjustment device of a yaw controller according to claim 1, characterized in that: There are four indicator lights on the display mechanism, and the four indicator lights are electrically connected to the cam1-cam4 interfaces on the yaw controller respectively.

5. A detection and adjustment method for a yaw controller, characterized in that: The detection and adjustment device of the yaw controller according to any one of claims 1 to 4 comprises the following steps: Connect the detection and adjustment device to the yaw controller; Initialize the yaw controller status, press the absolute 0° position adjustment button on the display mechanism of the detection and adjustment device, and adjust the yaw controller to the absolute 0° position through the mechanical plug. The yaw controller will make a sound and the corresponding indicator light will go out. Press the gear clockwise adjustment button and the right limit position adjustment button on the display mechanism respectively, record the number of times the clockwise adjustment button is pressed and display it on the display screen, adjust the yaw controller to the right limit position through the mechanical plug, the yaw controller will make a sound and the corresponding indicator light will go out; Adjust the yaw controller to the absolute 0° position; Press the gear counterclockwise adjustment button and the left limit position adjustment button on the display mechanism respectively, record the number of times the counterclockwise adjustment button is pressed and display it on the display screen, adjust the yaw controller to the left limit position through the mechanical plug, the yaw controller will make a sound and the corresponding indicator light will go out; After the detection is completed, remove the detection and adjustment device.

6. The detection and adjustment method of a yaw controller according to claim 5, characterized in that: The process of adjusting the yaw controller to the absolute 0° position is as follows: Press the reset button to clear the display screen to zero, and press the gear counterclockwise adjustment button to a position close to absolute 0°; Press the absolute 0° position adjustment button to adjust the yaw controller to the absolute 0° position and the corresponding indicator light goes out.

7. The detection and adjustment method of a yaw controller according to claim 5, characterized in that: The process of adjusting the yaw controller to the right limit position is as follows: Press the gear clockwise adjustment button and adjust the yaw controller to the right limit position through the mechanical plug; Press the right limit position adjustment button to adjust the yaw controller to the right limit position through the mechanical plug, and the corresponding indicator light goes out.

8. The detection and adjustment method of a yaw controller according to claim 5, characterized in that: The process of adjusting the yaw controller to the left limit position is as follows: Press the gear counterclockwise adjustment button and adjust the yaw controller to the left limit position through the mechanical plug; Press the left limit position adjustment button and adjust the yaw controller to the left limit position through the mechanical plug, and the corresponding indicator light goes out.

9. The detection and adjustment method of a yaw controller according to claim 5, characterized in that: There are four indicator lights, namely, an absolute 0° position indicator light, a right limit position indicator light, a left limit position indicator light and a fault indicator light.

10. The detection and adjustment method of a yaw controller according to claim 5, characterized in that: After the detection is completed, the detection and adjustment device is adjusted to the absolute 0° position before being removed.

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