Title:
OVERSPEED PREVENTING CONTROL METHOD AND APPARATUS, AND WIND TURBINE
Document Type and Number:
WIPO Patent Application WO/2019/165744
Kind Code:
A1
Abstract:
The present disclosure provides an overspeed preventing control method and apparatus, and a wind turbine. The method comprises: determining whether a brake system of a wind turbine has failed; if yes, calculating an initial crosswind position according to the current wind direction angle, and performing a crosswind operation by a yaw system of the wind turbine according to the initial crosswind position; performing long-period filtering processing on wind direction data acquired during the crosswind process to obtain an average wind direction angle, and performing short-period filtering processing on the wind direction data to obtain an instantaneous wind direction angle; according to the average wind direction angle and the instantaneous wind direction angle, determining whether the wind direction changes suddenly; if yes, calculating an updated crosswind position according to the average wind direction angle, and performing the crosswind operation by the yaw system according to the updated crosswind position. The technical solution of embodiments of the present application can implement a shutdown operation on a wind turbine after the entire braking system of the wind turbine fails.
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Inventors:
SUN CHANGLIANG (CN)
Application Number:
PCT/CN2018/095302
Publication Date:
September 06, 2019
Filing Date:
July 11, 2018
Export Citation:
Assignee:
BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO LTD (CN)
International Classes:
F03D7/04
Foreign References:
| CN103225586A | 2013-07-31 | |||
| CN107514337A | 2017-12-26 | |||
| EP2860392A1 | 2015-04-15 |
Other References:
See also references of EP 3557047A4
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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