CN219319442U - Gyroscope speed measuring sensor calibration system of wind power variable pitch driver - Google Patents
Gyroscope speed measuring sensor calibration system of wind power variable pitch driver Download PDFInfo
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- CN219319442U CN219319442U CN202223585800.3U CN202223585800U CN219319442U CN 219319442 U CN219319442 U CN 219319442U CN 202223585800 U CN202223585800 U CN 202223585800U CN 219319442 U CN219319442 U CN 219319442U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a calibrating system of a gyroscope speed measuring sensor of a wind power variable pitch driver, which comprises an electric vibration table, wherein a transmission fixing jig is arranged on the electric vibration table, a transmission shaft is arranged on the transmission fixing jig, the transmission shaft is connected with a servo motor through a transmission mechanism, the transmission shaft is connected with an encoder through a coupler, one end of the transmission shaft is connected with one end of an angle parameter jig for installing the gyroscope speed measuring sensor, the other end of the angle parameter jig is connected with a slip ring in a relatively rotatable manner, and a data transmission line for connecting with the gyroscope speed measuring sensor is connected on the slip ring. The utility model can realize calibration test with multiple angles under the environmental conditions of temperature, humidity, low air pressure, vibration and the like, realize calibration test under a plurality of comprehensive environmental conditions, and can comprehensively and accurately calibrate the related parameters of the gyroscope speed measuring sensor.
Description
Technical Field
The utility model relates to the technical field of sensor calibration, in particular to a gyroscope speed measuring sensor calibration system of a wind power variable pitch driver.
Background
The wind power generation converts wind energy into electric energy, and the whole process does not need fuel, does not generate radiation and pollution, and is clean energy. The principle of wind power generation is that wind power is utilized to drive windmill blades to rotate, and then the rotating speed is increased through a speed increaser so as to drive a generator to generate power.
The pitch control system is one of core components of a control system of the large wind turbine, and can change the attack angle of air flow to the blades by adjusting the pitch angle of the blades so as to control the pneumatic torque and the pneumatic power captured by the wind wheel. The variable pitch driver provides signals for the variable pitch system, so that the variable pitch system controls the rotating speed of the wind wheel by controlling the angle of the blades, and further controls the output power of the fan. The gyroscope speed measuring sensor in the pitch drive is a core signal acquisition component for controlling the angle and the speed of the pitch system, and the accuracy of the gyroscope speed measuring sensor directly influences the control accuracy of the pitch system, so that the accuracy calibration of the gyroscope speed measuring sensor becomes particularly important.
The pitch drive and the pitch system are mounted on the wind power plant. The wind farm is generally built in a region with a severe natural environment, and can bear the examination of environmental stresses such as high and low temperature, damp and hot, vibration, corrosion, high altitude and the like in the working process, and once the performance of the product cannot bear the examination of the environmental stresses, the wind farm can fail. The safety of the whole tower barrel is endangered when the fan is stopped due to light weight, so that the multi-stress precision calibration of the gyroscope speed measuring sensor becomes particularly important.
The existing gyroscopes are generally calibrated according to the JJF1535-2015 micro-electromechanical (MEMS) gyroscope calibration standard, and the calibration method involved in the calibration standard comprises calibration conditions such as normal temperature, high temperature, low temperature, angle and the like.
However, the existing calibration means have the following technical defects:
1. a single environmental stress calibration can not completely cover all stress influences of a use environment;
2. the angle calibration can only realize unidirectional dip angle setting;
3. the working bandwidth calibration adopts a fixed frequency test method, namely a fixed frequency and fixed amplitude mode for measurement, the working environment where the wind power variable pitch driver is positioned is low-frequency random vibration stress, and the real vibration environment stress cannot be simulated by adopting the fixed frequency test method;
4. the input values of gyroscopes in the existing calibration method are based on the output of the adopted calibration equipment, and once the calibration equipment is influenced by the external environment or the self fault, the whole calibration result can be influenced.
How to design a gyroscope speed measuring sensor calibration system of a wind power variable pitch driver capable of solving the technical problems is a subject of intensive research by the inventor.
Disclosure of Invention
The utility model aims to provide a calibration system of a gyroscope speed sensor of a wind power variable pitch driver, which can realize calibration test with multiple angles under environmental working conditions such as temperature, humidity, low air pressure, vibration and the like, realize calibration test under a plurality of comprehensive environmental working conditions, and can comprehensively and accurately calibrate related parameters of the gyroscope speed sensor.
In order to achieve the above object, the technical solution of the present utility model is: the utility model provides a wind-powered electricity generation becomes gyroscope speed sensor calibration system of oar driver, wherein includes electric vibration platform, install the fixed tool of transmission on the electric vibration platform, install the transmission shaft on the fixed tool of transmission, the transmission shaft passes through drive mechanism and is connected with servo motor, the transmission shaft passes through the shaft coupling and is connected with the encoder, the one end of transmission shaft is connected with the one end that is used for installing the angle parameter tool of gyroscope speed sensor, the other end and the slip ring relatively rotatable of angle parameter tool are connected, be connected with on the slip ring be used for with the data transmission line that gyroscope speed sensor is connected.
The utility model discloses a gyroscope speed measuring sensor calibration system of a wind power variable pitch driver, wherein a transmission fixing jig comprises a base fixed on an electric vibration table, a plurality of bearing seats are arranged on the base, bearings are respectively arranged on the bearing seats, and a transmission shaft is arranged on the bearings.
The utility model discloses a calibrating system of a gyroscope speed measuring sensor of a wind power variable pitch driver, wherein a transmission mechanism comprises a first synchronous wheel arranged on an output shaft of a servo motor, a second synchronous wheel arranged on a transmission shaft and a synchronous belt arranged on the first synchronous wheel and the second synchronous wheel, and the servo motor drives the transmission shaft to rotate through the transmission mechanism.
The utility model discloses a calibrating system of a gyroscope speed measuring sensor of a wind power variable pitch driver, wherein a servo motor is arranged on a servo motor mounting frame.
The utility model discloses a calibrating system of a gyroscope speed measuring sensor of a wind power variable pitch driver, wherein the angle parameter jig is plate-shaped, one end of a transmission shaft is connected with the angle parameter jig through a bolt, and the part of the transmission shaft connected with the angle parameter jig is a plane.
The utility model relates to a calibrating system of a gyroscope speed measuring sensor of a wind power variable pitch driver, wherein the other end of an angle parameter jig is connected with a slip ring through a steel cable.
The utility model discloses a calibrating system of a gyroscope speed measuring sensor of a wind power variable pitch driver, wherein a slip ring is arranged on a slip ring fixing frame.
The utility model discloses a calibrating system of a gyroscope speed measuring sensor of a wind power variable pitch driver, wherein an encoder is arranged on an encoder mounting frame, and the encoder mounting frame is fixed on an electric vibration table.
The utility model discloses a gyroscope speed measuring sensor calibration system of a wind power variable pitch driver, which further comprises an environment test box, wherein the environment test box is covered above an electric vibration table, so that a transmission fixing jig, a part of a transmission mechanism and an angle parameter jig are covered in an inner cavity of the environment test box.
The utility model discloses a gyroscope speed measuring sensor calibration system of a wind power variable pitch driver, wherein a signal wire used for being connected with an acceleration sensor is connected to a slip ring.
After the scheme is adopted, the gyroscope speed measuring sensor calibration system of the wind power variable pitch driver has the following beneficial effects:
1. the utility model can realize calibration test with multiple angles under single environmental conditions such as normal temperature, high temperature, low temperature, damp heat, low pressure, vibration and the like, and can realize calibration test under multiple comprehensive environmental conditions, such as calibration data acquisition under multiple stress coupling application conditions such as temperature/humidity, temperature/humidity/vibration, temperature/humidity/low pressure and the like;
2. the method can realize multi-way monitoring of input parameters, avoid abnormal conditions of calibration parameters, realize comparison of calibration data under different environmental stresses, better acquire more accurate correction parameters of the gyroscope sensor, provide more effective data for calibration calculation of the gyroscope speed sensor in the wind power pitch drive, and more comprehensively and accurately calibrate related parameters of the gyroscope speed sensor in the wind power pitch drive;
3. the utility model can completely simulate the actual installation state and the angle requirement for calibration;
4. the utility model can obtain the standard source rotating speed and the transmission shaft rotating speed simultaneously, can achieve the effect of mutual supervision, can be used for data analysis, and can better obtain the calibration parameters and the precision of the gyroscope sensor.
Drawings
FIG. 1 is a block diagram of a gyroscope speed sensor calibration system of a wind power pitch drive of the present utility model;
FIG. 2 is an enlarged view of a portion of a gyroscope speed sensor calibration system of the wind power pitch drive of the present utility model.
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings.
Detailed Description
The structural schematic diagram of the gyroscope speed measuring sensor calibration system of the wind power variable pitch driver shown in fig. 1 comprises an electric vibration table 1, wherein a transmission fixing jig 2 is arranged on the upper surface of the front part of the electric vibration table 1 and is used for realizing low-frequency random vibration stress transmission. Referring to fig. 2, the transmission fixture 2 includes a base 3, and the base 3 is fixed to the upper surface of the electric vibration table 1 by bolts. The upper surface of the base 3 is provided with a first bearing seat 4 and a second bearing seat 5, the first bearing seat 4 is provided with a UCP209 bearing 21, the second bearing seat 5 is provided with a UCP205 bearing 22, and the bearings 21 and 22 are provided with a transmission shaft 6. The transmission shaft 6 is connected with a servo motor 7 through a transmission mechanism.
The transmission mechanism comprises a first synchronizing wheel 8 arranged on an output shaft of the servo motor 7, a second synchronizing wheel 9 arranged on the transmission shaft 6 and a synchronizing belt 10 arranged on the first synchronizing wheel 8 and the second synchronizing wheel 9. The servo motor 7 drives the transmission shaft 6 to rotate through the transmission mechanism, and the transmission shaft 6 transmits the rotating speed of the servo motor 7. The servo motor 7 is mounted on a servo motor mounting frame 11, and the servo motor mounting frame 11 is placed on the ground. The servo motor mounting frame 11 is a triangular prism-shaped frame body, and the servo motor 7 is mounted on the vertical side surface of the servo motor mounting frame 11.
The front end of the transmission shaft 6 is cut into a connecting end with an upper plane and a lower plane, the connecting end of the transmission shaft 6 is connected with the rear end of the angle parameter jig 12 through a plurality of bolts, the angle parameter jig 12 adopts a rectangular plate body, the angle parameter jig 12 is used for installing a gyroscope speed measuring sensor, and the gyroscope speed measuring sensor is designed and processed according to the actual installation angle requirement of the gyroscope speed measuring sensor which is calibrated as required, so that the angle parameter state is realized. The rear end of the transmission shaft 6 is connected with an encoder 14 through a coupler 13, and the encoder 14 is used for collecting the output rotating speed of the transmission shaft 6. The encoder 14 is mounted on an encoder mounting bracket 15, and the encoder mounting bracket 15 is fixed to the electric vibration table 1.
The front end of the angle parameter jig 12 is rotatably connected with the slip ring 16, and the front end of the angle parameter jig 12 is connected with the rear end of the slip ring 16 through two steel cables 17. The slip ring 16 is mounted on a slip ring mount 18. The slip ring 16 is connected with a data transmission line 19 for connecting with a gyro speed sensor and a signal line (not shown in the figure) for connecting with an acceleration sensor.
An environmental test chamber 20 is also included for implementing the temperature/humidity environmental stress parameter, and the combined system of the environmental test chamber and the electric vibration table 1 is used for implementing the temperature/humidity/vibration comprehensive environmental stress synchronization parameter. The environment test box 20 is covered above the electric vibration table 1, so that the transmission fixing jig 2, part of the transmission mechanism and the angle parameter jig 12 are covered in the inner cavity of the environment test box 20. The first synchronizing wheel 8 and part of the synchronous belt 10 of the transmission mechanism are located outside the environmental test chamber 20.
The calibration method of the gyroscope speed measuring sensor calibration system of the wind power variable pitch driver comprises the following steps:
s1, acquiring a calibrated environmental stress according to the use environment of a wind power variable pitch driver, wherein the calibrated environmental stress is a comprehensive environmental stress of temperature/humidity/vibration, the specific environmental stress parameter is that the temperature is 55 ℃, the humidity is 98% RH, and the vibration is random;
s2, the installation state of an internal gyroscope speed measuring sensor of the variable pitch driver in actual working is vertical to the rotation direction, the inclination angle is +/-10 degrees, and the inclination angle in the horizontal direction is 25 degrees;
s3, calibrating the rotating speed of a gyroscope speed measuring sensor in the variable pitch driver to be 3-20 rpm;
s4, installing a gyroscope speed measuring sensor in the variable pitch drive on the angle parameter jig 12, and connecting a data transmission line 19 with the gyroscope speed measuring sensor in the variable pitch drive and the slip ring 16;
s5, mounting a vibration control acceleration sensor on the angle parameter jig 12, and connecting an acceleration sensor signal wire to the slip ring 16;
s6, connecting an acceleration sensor signal wire with a vibration control system, connecting an encoder 14 with a signal collector through the signal wire, and connecting a gyroscope speed measuring sensor signal wire in the pitch drive with the signal collector;
s7, setting a temperature/humidity program, namely a temperature of 55 ℃ and a humidity of 98%RH, on an environment test box 20, operating a gyroscope speed measuring sensor in the pitch drive after the temperature and the humidity are stable, starting a servo motor 7 after the gyroscope speed measuring sensor in the pitch drive is stable in operation, setting a calibrated rotating speed, operating the servo motor 7, and collecting output data of the gyroscope speed measuring sensor in the pitch drive and output data of an encoder 14;
s8, comparing the output rotating speed of the encoder 14 with the control rotating speed of the servo motor 7, and collecting output data of a gyroscope speed measuring sensor in the pitch drive after no abnormality exists in the data;
s9, operating the electric vibration table 1, and starting the vibration environmental stress according to low-frequency random vibration;
s10, comparing the output rotating speed of the encoder 14 with the control rotating speed of the servo motor 7, and collecting output data of a gyroscope speed measuring sensor in the pitch drive after no abnormality exists in the data;
and S11, repeating the steps S8-S11 for three times according to the calibration requirement, and collecting related data for calibration analysis.
The calibration system can realize the calibration test with multiple angles under the single environmental working conditions of normal temperature, high temperature, low temperature, damp heat, low air pressure, vibration and the like, and can realize the calibration test under a plurality of comprehensive environmental working conditions, such as the calibration data acquisition under the multi-stress coupling application working conditions of temperature/humidity, temperature/humidity/vibration and the like. The method can realize multi-way monitoring of input parameters, can avoid abnormal conditions of calibration parameters, can realize comparison of calibration data under different environmental stresses, can better acquire more accurate correction parameters of the gyroscope sensor, provides more effective data for calibration calculation of the gyroscope speed sensor in the wind power pitch drive, and can more comprehensively and accurately calibrate related parameters of the gyroscope speed sensor in the wind power pitch drive. The utility model can completely simulate the actual installation state and the angle requirement for calibration. The utility model can obtain the standard source rotating speed and the transmission shaft rotating speed simultaneously, can achieve the effect of mutual supervision, can be used for data analysis, and can better obtain the calibration parameters and the precision of the gyroscope sensor.
The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.
Claims (10)
1. The utility model provides a wind-powered electricity generation becomes gyroscope speed sensor calibration system of oar driver, its characterized in that, includes electric vibration platform, install the fixed tool of transmission on the electric vibration platform, install the transmission shaft on the fixed tool of transmission, the transmission shaft passes through drive mechanism and is connected with servo motor, the transmission shaft passes through the shaft coupling and is connected with the encoder, the one end of transmission shaft is connected with the one end that is used for installing the angle parameter tool of gyroscope speed sensor, the other end and the slip ring relatively rotatable of angle parameter tool are connected, be connected with on the slip ring be used for with the data transmission line that gyroscope speed sensor is connected.
2. The system for calibrating a gyroscope speed sensor of a wind power variable pitch driver according to claim 1, wherein the transmission fixing jig comprises a base fixed on the electric vibration table, a plurality of bearing seats are mounted on the base, bearings are mounted on the bearing seats respectively, and the transmission shaft is mounted on a plurality of bearings.
3. The system for calibrating a gyroscope speed sensor of a wind power variable pitch driver according to claim 2, wherein the transmission mechanism comprises a first synchronous wheel arranged on an output shaft of the servo motor, a second synchronous wheel arranged on the transmission shaft and a synchronous belt arranged on the first synchronous wheel and the second synchronous wheel, and the servo motor drives the transmission shaft to rotate through the transmission mechanism.
4. The system for calibrating a gyroscope speed sensor of a wind power variable pitch drive according to claim 1, wherein the servo motor is mounted on a servo motor mounting frame.
5. The calibrating system of the gyroscope speed measuring sensor of the wind power variable pitch driver according to claim 1, wherein the angle parameter jig is plate-shaped, one end of the transmission shaft is connected with the angle parameter jig through a bolt, and a part of the transmission shaft connected with the angle parameter jig is a plane.
6. The system for calibrating a gyroscope speed sensor of a wind power variable pitch drive according to claim 1, wherein the other end of the angle parameter jig is connected with the slip ring through a steel cable.
7. The system for calibrating a gyroscope speed sensor of a wind power variable pitch drive according to claim 1, wherein the slip ring is mounted on a slip ring fixing frame.
8. The system for calibrating a gyroscope speed sensor of a wind power pitch drive according to claim 1, wherein the encoder is mounted on an encoder mounting bracket, and the encoder mounting bracket is fixed to the electric vibration table.
9. The system for calibrating a gyroscope speed sensor of a wind power pitch drive according to claim 1, further comprising an environmental test chamber, wherein the environmental test chamber is covered above the electric vibration table, and the transmission fixing jig, part of the transmission mechanism and the angle parameter jig are covered in an inner cavity of the environmental test chamber.
10. The system for calibrating a gyroscope speed sensor of a wind power variable pitch drive according to claim 1, wherein a signal wire for connecting with an acceleration sensor is connected to the slip ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223585800.3U CN219319442U (en) | 2022-12-30 | 2022-12-30 | Gyroscope speed measuring sensor calibration system of wind power variable pitch driver |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223585800.3U CN219319442U (en) | 2022-12-30 | 2022-12-30 | Gyroscope speed measuring sensor calibration system of wind power variable pitch driver |
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| CN219319442U true CN219319442U (en) | 2023-07-07 |
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| CN202223585800.3U Active CN219319442U (en) | 2022-12-30 | 2022-12-30 | Gyroscope speed measuring sensor calibration system of wind power variable pitch driver |
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- 2022-12-30 CN CN202223585800.3U patent/CN219319442U/en active Active
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