DocumentCode :
3181308
Title :
An on-line fault diagnosis method for power electronic drives
Author :
Anderson, Jason M. ; Cox, Robert W. ; Noppakunkajorn, Jukkrit
Author_Institution :
Dept. of Electr. & Comput. Eng., UNC Charlotte, Charlotte, NC, USA
fYear :
2011
fDate :
10-13 April 2011
Firstpage :
492
Lastpage :
497
Abstract :
This paper describes online techniques for monitoring the health of the two most sensitive components in power electronic systems, namely electrolytic filtering capacitors and controllable semiconductor switches (i.e. MOSFETs and IGBTs). The paper begins with a brief discussion of the primary failure mechanisms for these two types of components. It then presents an online technique designed to measure capacitor ESR, which is a key indicator of capacitor health. Subsequent sections address similar online approaches for tracking the on-state resistance of MOSFETs and the collector-to-emitter saturation voltage of IGBTs. Experimental results demonstrate the effectiveness of these techniques.
Keywords :
condition monitoring; electric drives; fault diagnosis; field effect transistor switches; power capacitors; power electronics; power filters; power semiconductor switches; power system measurement; IGBT; MOSFET; capacitor ESR measurement; collector-to-emitter saturation voltage; controllable semiconductor switch; electrolytic filtering capacitor; health monitoring; on-state resistance; online fault diagnosis method; power electronic drives; Capacitors; Current measurement; Electrical resistance measurement; Insulated gate bipolar transistors; MOSFETs; Resistance; Voltage measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electric Ship Technologies Symposium (ESTS), 2011 IEEE
Conference_Location :
Alexandria, VA
Print_ISBN :
978-1-4244-9272-5
Type :
conf
DOI :
10.1109/ESTS.2011.5770922
Filename :
5770922
Link To Document :
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