The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2022
Filed:
Nov. 11, 2020
North China Electric Power University, Beijing, CN;
Guodian New Energy Technology Research Institute Co., Ltd., Beijing, CN;
Zhongwei Lin, Beijing, CN;
Chenzhi Qu, Beijing, CN;
Chuanxi Wang, Beijing, CN;
Zhenyu Chen, Beijing, CN;
Xiangyu Han, Beijing, CN;
Zhen Xie, Beijing, CN;
Qingru Cui, Beijing, CN;
Gengda Li, Beijing, CN;
Xiongwei Li, Beijing, CN;
North China Electric Power University, Beijing, CN;
Guodian New Energy Technology Research Institute Co., Ltd., Beijing, CN;
Abstract
The disclosure proposes a yaw calibration method and system for a wind turbine. The calibration method includes: establishing a cylindrical coordinate graph of wind resource distribution based on historical wind farm operation data, to determine a wind direction interval of main inflow wind conditions of a wind farm; calculating an effective value of active power of each wind speed sub-interval, and obtaining a fitted power curve of each refined interval through curve fitting; and setting an angle between a central axis of a refined interval for a fitted power curve corresponding to a calibration curve in each wind speed range and a central axis of the to-be-calibrated wind direction interval as a yaw error calibration value in the wind speed range, to establish a wind speed-yaw error calibration value lookup table; and determining a yaw error calibration value under a current wind direction and a current wind.