Off-course driving device of wind-driven generator

Abstract

The invention discloses a yaw driving device of a wind driven generator, relates to the technical field of wind power generating equipment, and solves the defects of complex driving mechanism and low reliability of the existing yaw driving devices of wind driven generators, reduced braking reliability of yaw braking devices, big yaw driving resistance and high cost. A driving gear arranged on a direct drive electrohydraulic servo low-speed and large-torque hydraulic motor output shaft is directly engaged with a yaw fluted disc; a locking part of a yaw braking device is directly arranged on the direct drive electrohydraulic servo low-speed and high-torque hydraulic motor output shaft; a variable-frequency motor of the direct drive electrohydraulic servo low-speed and high-torque hydraulic motor is connected with a two-way constant displacement pump, the two-way constant displacement pump is connected with the low-speed and large-torque hydraulic motor by a hydraulic lock, and an oil feeding valve is connected to two oil channels between the two-way constant displacement pump and the low-speed and large-torque hydraulic motor. The yaw driving device has the advantages of good reliability, simple structure, low cost, stepless regulation of yawing velocity and the like.

Description

A yaw driving device for a wind power generator technical field The invention relates to the technical field of wind power generation equipment, in particular to a wind power generator driving device. Background technique Wind energy is the conversion form of solar energy. It is a renewable natural energy that does not produce any pollutant emissions. It is the most promising green energy in the 21st century and one of the most important new power sources for the sustainable development of human society and economy. one. At present, commercial large-scale wind turbines are generally horizontal-axis wind turbines, which include a wind rotor 1, a transmission system 2, a generator 3, a yaw drive device 4, a control system 5 and a tower 6, as shown in FIG. 1 . The function of the wind wheel is to convert wind energy into mechanical energy. It consists of blades with excellent aerodynamic performance (currently commercial units generally have 2 to 3 blades) mounted on the hu...

AI Technical Summary

Problems solved by technology

The present invention aims at the defects of complex driving mechanism and low reliability of the yaw driving device of the existing wind power generator, the reduced reliability of the braking of the yaw braking device, the large resistance of the yaw driving and the high cost, and proposes a Yaw drives for wind turbines

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