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1. (WO2018082373) SYSTEM FOR MONITORING OPERATING STATE OF BLADES OF OFFSHORE WIND TURBINE

Pub. No.:    WO/2018/082373    International Application No.:    PCT/CN2017/098580
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Thu Aug 24 01:59:59 CEST 2017
IPC: F03D 17/00
Applicants: GUANGZHOU SPECIAL PRESSURE EQUIPMENT INSPECTION AND RESEARCH INSTITUTE
广州特种承压设备检测研究院
Inventors: WANG, Zhigang
王志刚
LI, Shiping
李仕平
YANG, Bo
杨波
CHEN, Zhigang
陈志刚
LI, Maodong
李茂东
LIN, Jinmei
林金梅
ZHAI, Wei
翟伟
ZHANG, Shuanghong
张双红
HUANG, Guojia
黄国家
XIN, Mingliang
辛明亮
QIU, Yue
邱樾
WU, Zhenling
伍振凌
Title: SYSTEM FOR MONITORING OPERATING STATE OF BLADES OF OFFSHORE WIND TURBINE
Abstract:
A system for monitoring the operating state of blades of an offshore wind turbine, comprising: a blade frequency acquisition device (11) that acquires a blade frequency of a wind turbine; a synchronous drive circuit (14) that receives the blade frequency and outputs two identical drive signals having a frequency which is an integral multiple of the blade frequency; a light emitting device (12) that receives the drive signals, and emits light having a frequency identical to the frequency of the drive signals to the rotating blades (36); a thermal image acquisition device (13) that receives the drive signals, and acquires a thermal image at a frequency identical to that of the drive signals to obtain thermal image data; and an analysis terminal (15) that receives the thermal image data and performs failure analysis. The blade frequency acquisition device (11) is connected to the synchronous drive circuit (14). The synchronous drive circuit (14) is connected to the light emitting device (12) and the thermal image acquisition device (13). The thermal image acquisition device (13) is connected to the analysis terminal (15). The system for monitoring the operating state of blades of an offshore wind turbine can timely monitor the blade state of a wind turbine.