Uniform load test verification method of yaw driving system of wind turbine generator

A technology of yaw drive and wind turbine, applied in machine gear/transmission mechanism testing, measuring devices, force/torque/power measuring instruments, etc., can solve problems that cannot be implemented on site, affect measurement accuracy, and transmission efficiency is unknown , to achieve the effects of short implementation period, convenient testing, and accurate and reliable test results

Active Publication Date: 2019-08-02
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Application Information

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Problems solved by technology

The conventional method of measuring shaft torque is to install a commercial torque sensor between the drive gear and the reduction box, or install a torque sensor at the high-speed end to monitor the high-speed shaft torque, and then extrapolate to the low-speed shaft torque. Both methods are There are defects. The first type will

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  • Uniform load test verification method of yaw driving system of wind turbine generator
  • Uniform load test verification method of yaw driving system of wind turbine generator

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific examples.

[0021] The single yaw drive system and test can be simplified as figure 1 As shown, under normal working conditions, the high-speed shaft drive motor 1 drives the multi-stage planetary gearbox 2 to transmit torque to the low-speed shaft drive gear 4, thereby driving the entire fan head to yaw relative to the inner ring gear 3 of the tower tube, as shown in Fig. Middle 8 is the driving torque of the high-speed shaft.

[0022] Such as figure 2 As shown, the wind turbine yaw drive system load sharing test verification method provided in this embodiment includes the following steps:

[0023] 1) Install the torque test sensor 6 on the outer wall of the supporting shell where the reduction box 2 of the yaw drive system is connected to the fan base frame, and then use any strain signal measurement method among 1 / 4 bridge, half bridge, and full bridge to measure the The strain sig...

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Abstract

The invention discloses a uniform load test verification method of a yaw driving system of a wind turbine generator. The structural features of the yaw driving system are fully considered in the method, a torque test sensor is installed on a structure in front of a last stage inner gear ring of a yaw reduction gearbox planetary system and a supporting underframe, a yaw driving torque is extrapolated by measuring the torsional deformation of the outer wall of the structure and the calibration relationship between the torsional deformation and the torque, being different from the traditional test method of mounting the torque sensor, the yaw driving system is directly converted into the sensor itself, the original system structure does not need to be changed, and the defects that large changes are made to the driving system by the conventional detection method, resulting in heavy workload and measurement errors caused by the unknown gear training efficiency, are solved.

Description

technical field [0001] The invention relates to the technical field of wind turbine yaw drive, in particular to a load sharing test verification method for a wind turbine yaw drive system. Background technique [0002] It is known in the industry that with the development of large-scale wind turbines, the yaw drive system is a slow-speed and heavy-load system. Generally, multiple yaw drive systems are designed around the yaw ring gear, and the number varies. The yaw drive system is mainly composed of a yaw drive motor, a yaw reducer, and a drive gear. The yaw motor drives the high-speed end of the yaw reducer, and the low-speed end of the yaw reducer connects the drive gear to mesh with the yaw ring gear. Drive the entire wind turbine nacelle to rotate and yaw relative to the tower. The yaw drive system is composed of multiple yaw drives, and each yaw drive adopts the form of multi-stage planetary gear transmission in series, in which the ring gear is fixed, the planetary g...

Claims

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Application Information

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IPC IPC(8): G01M13/02G01L5/00
CPCG01L5/0061G01M13/02
Inventor 魏煜锋邓顺城吴幸维卓锡鑫刘坤石宇峰
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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