|Table of Contents|

 Fault detection method of power converter for switchedreluctance motor based on analysis of current(PDF)

[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2018年04
Page:
67-74
Research Field:
Publishing date:

Info

Title:
 Fault detection method of power converter for switchedreluctance motor based on analysis of current
Author(s):
 XIAO Li1 FAN Shu-rui2 WANG Bo-wen3 SHEN Fang1 DONG Hao- yu1
( 1. School of Information Engineering,Tianjin University of Commerce,Tianjin 300134,China;2. School of Electronic and Information Engineering,
Hebei University of Technology,Tianjin 300130,China;3. Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability,
Hebei Universityof Technology,Tianjin 300130,China)
Keywords:
 fault detection power converter demagnetization time current difference switched reluc-tance motor
PACS:
TM352
DOI:
10.15938/j.emc.2018.04.009
Abstract:
 A comprehensive on-line fault detection method for open-circuit and short-circuit faults is pres-ented for the asymmetrical half-bridge power converter feeding switched reluctance motor. The study is fo-cused on analyzing failure mechanism to excavate the singular feature of fault phase current and the differ-ence between each current. The fault feature was extracted and a fault feature collection was proposed andfounded,which included differences between each current,and were considered as diagnostic judgmentelement. And the diagnosis criterion was set to realize the diagnosis for the occurrence,type and locationof the fault. Then based on the demagnetization time and on-off states of power elements of the faultphase,the fault component can be distinguished. The accuracy and effectiveness of the proposed detec-tion method are validated with different conditions by the simulation results and experimental tests. More-over,
any additional sensors is not required.

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Last Update: 2018-07-01