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Wind generating set yaw device

A yaw and yaw motor technology, applied in wind turbines, wind turbine control, wind power generation, etc., can solve problems such as poor overload capacity and low starting torque, improve starting performance, increase output, and widen the working range. Effect

Inactive Publication Date: 2008-02-06
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of low starting torque and poor overload capacity of the yaw device in the prior art, and propose a yaw device for wind power generators

Method used

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  • Wind generating set yaw device
  • Wind generating set yaw device
  • Wind generating set yaw device

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Embodiment Construction

[0015] The present invention will be further described below based on the drawings and embodiments.

[0016] The yaw device of the wind generator set of the present invention can adjust the angle of the nacelle according to the instructions issued by the controller, and realize the windward and crosswind control of the wind generator set. The device is composed of yaw gear 1, yaw reducer 3, Halbach magnet structure permanent magnet motor 4, yaw brake 5 and other auxiliary devices such as yaw counter, torsion cable sensor, wind direction indicator, etc., as shown in Figure 1. , As shown in Figure 2. Its connection and location are as follows: the Halbach magnet structure permanent magnet motor is installed on the nacelle base 2, and is connected to the yaw gear 1 fixed on the tower flange via the yaw reducer 3; the yaw brake 5 is fixed on the nacelle base Seat; the wind vane is installed on the top of the outer surface of the cabin; the yaw counter is installed on the bottom of the...

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Abstract

The present invention belongs to the technique field of wind power generation, and relates to a yawing device of an aerogenerator, which consists of a controller, a yawing arrester, a yawing pilot relay, a yawing contactor, a yawing electric motor, a yawing retarder, a yawing outer rotor, a yawing counter, a cable sensor, a dogvane, and an anemoscope. The electric motor is connected with the yawing retarder which is joggled with a big yawing rotor. The controller controls the yawing arrester according to the input signal of the dogvane or the anemoscope, and the operation of the yawing electric motor by the yawing pilot relay and the yawing contactor. The yawing electric motor drives the big yawing rotor by the yawing retarder. The electric motor is a magnetoelectric machine with the structure of Halbach magnet. The present invention can improve the starting performance of the yawing device and cause the yawing device to drive the main flight crew compartment to rotate easier under the work situation of frequent starts and stops; at the same time, the over loading capability of the yawing electric motor is improved and the malfunction rate of the yawing device is decreased to maintain the workload, and the operation life of the yawing electric motor is prolonged.

Description

Technical field [0001] The invention belongs to the technical field of wind power generation, and relates to a yaw device, which is suitable for use in a megawatt and above high-power variable-speed constant-frequency wind generator set. Background technique [0002] During the operation of a wind turbine, the probability of damage to the mechanical components of the unit is much greater than that of the electrical components. Among the mechanical components, the yaw system components are the key problems that often occur in machinery. Due to the randomness of the wind speed and direction, the yaw device of the wind turbine generator runs intermittently during the working process, the running time is short, and the start and stop are more frequent, and the yaw bearing is prone to wear. The existing yaw motor has low starting torque and weak overload capacity. The slight wear of the bearing during the operation of the wind turbine will make the motor unable to start normally, caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCY02E10/723Y02E10/72
Inventor 夏长亮陈炜宋战锋史婷娜
Owner TIANJIN UNIV
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