Title:
AUTOMATIC EMERGENCY YAW CONTROL SYSTEM AND METHOD FOR PREVENTING RUNAWAY OF WIND GENERATOR SET
Document Type and Number:
WIPO Patent Application WO/2022/088376
Kind Code:
A1
Abstract:
Disclosed in the present invention are an automatic emergency yaw control system and method for preventing runaway of a wind generator set. The system comprises an emergency yaw control circuit; the input end of the emergency yaw control circuit is connected to an impeller rotation speed measurement device of the wind generator set, and the output end of the emergency yaw control circuit is separately connected to a yaw driving circuit and a yaw braking circuit; and the emergency yaw control circuit is used for starting the power supply of the yaw braking circuit when the rotation speed of the impeller of the wind generator set exceeds a rated rotation speed, and after delaying for a preset period of time, starting the power supply of the yaw driving circuit. The method and system of the present invention can perform yaw control when the rotation speed of the impeller of the wind generator set exceeds a speed, so that the impeller of the wind generator set deviates from a main wind direction, thereby achieving the purpose of reducing the rotation speed.
Inventors:
WANG XIANGWEI (CN)
DING CHUNXING (CN)
ZHANG SHI (CN)
DUAN RUILONG (CN)
LIU YI (CN)
DING CHUNXING (CN)
ZHANG SHI (CN)
DUAN RUILONG (CN)
LIU YI (CN)
Application Number:
PCT/CN2020/133522
Publication Date:
May 05, 2022
Filing Date:
December 03, 2020
Export Citation:
Assignee:
HUANENG RENEWABLES CORPORATION LTD HEBEI BRANCH (CN)
International Classes:
F03D7/04
Foreign References:
| CN213270135U | 2021-05-25 | |||
| CN105508137A | 2016-04-20 | |||
| CN110374800A | 2019-10-25 | |||
| CN203098147U | 2013-07-31 | |||
| CN208918746U | 2019-05-31 | |||
| JP2003201951A | 2003-07-18 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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