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Title:
FAULT DIAGNOSIS METHOD AND DEVICE FOR MAIN DISTRIBUTING VALVE OF HYDRAULIC TURBINE GOVERNOR, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/104969
Kind Code:
A1
Abstract:
A fault diagnosis method for a main distributing valve of a hydraulic turbine governor, a fault diagnosis device and a computer storage medium, said fault diagnosis method comprising: acquiring a proportional servo valve feedback signal, a main distributing valve position feedback signal and a servomotor travel feedback signal; and determining, according to the proportional servo valve feedback signal, the main distributing valve position feedback signal and the servomotor travel feedback signal, whether the main distributing valve of the hydraulic turbine governor fails and/or the type of the failure. Said method achieves accurate and timely determination, has a comprehensive basis for determination, and can accurately determine location of a failure and give a corresponding maintenance decision.

Inventors:
ZHANG, Lei (NO.19 Chengxin Avenue, Jiangning DistrictNanjing, Jiangsu 6, 211106, CN)
CAI, Weijiang (NO.19 Chengxin Avenue, Jiangning DistrictNanjing, Jiangsu 6, 211106, CN)
SUN, Yanling (NO.19 Chengxin Avenue, Jiangning DistrictNanjing, Jiangsu 6, 211106, CN)
HE, Linbo (NO.19 Chengxin Avenue, Jiangning DistrictNanjing, Jiangsu 6, 211106, CN)
RONG, Hong (NO.19 Chengxin Avenue, Jiangning DistrictNanjing, Jiangsu 6, 211106, CN)
Application Number:
CN2018/088500
Publication Date:
June 06, 2019
Filing Date:
May 25, 2018
Export Citation:
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Assignee:
NARI TECHNOLOGY CO. LTD (NO.19 Chengxin Avenue, Jiangning DistrictNanjing, Jiangsu 6, 211106, CN)
NARI GROUP CORCOPRATION LTD. (NO.19 Chengxin Avenue, Jiangning DistrictNanjing, Jiangsu 6, 211106, CN)
International Classes:
G01M13/00; G05B23/02
Foreign References:
CN107991077A2018-05-04
CN201794708U2011-04-13
CN103452746A2013-12-18
CN101487437A2009-07-22
US5486997A1996-01-23
DE3440188A11986-04-30
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (2nd Floor, Zhongguancun Intellectual Property Building Block B, No.21 Haidian South Road, Haidian District, Beijing 0, 100080, CN)
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