DocumentCode :
1121297
Title :
Investigation of fault modes of voltage-fed inverter system for induction motor drive
Author :
Kastha, Debaprasad ; Bose, Bimal K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Tennessee Univ., Knoxville, TN, USA
Volume :
30
Issue :
4
fYear :
1994
Firstpage :
1028
Lastpage :
1038
Abstract :
The reliability of power electronics systems is of paramount importance in industrial, commercial, aerospace, and military applications. The knowledge about the fault mode behavior of a converter system is extremely important from the standpoint of improved system design, protection, and fault tolerant control. This paper describes a systematic investigation into the various fault modes of a voltage-fed PWM inverter system for induction motor drives. After identifying all the fault modes, a preliminary mathematical analysis has been made for the key fault types, namely, input supply single line to ground fault, rectifier diode short circuit, inverter transistor base drive open, and inverter transistor short-circuit conditions. The predicted fault performances are then substantiated by simulation study. The study has been used to determine stresses in power circuit components and to evaluate satisfactory post-fault steady-state operating regions. The results are equally useful for better protection system design and easy fault diagnosis. They will be used to improve system reliability by using fault tolerant control
Keywords :
electric drives; electrical faults; induction motors; invertors; machine protection; power convertors; pulse width modulation; short-circuit currents; converter system; fault modes; fault tolerant control; induction motor drive; inverter transistor base drive open; inverter transistor short-circuit; mathematical analysis; power circuit components stresses; power electronics systems; protection; rectifier diode short circuit; reliability; simulation; steady-state operating regions; voltage-fed inverter system; Aerospace industry; Circuit faults; Control systems; Fault diagnosis; Fault tolerant systems; Power electronics; Power system protection; Power system reliability; Pulse width modulation inverters; Voltage;
fLanguage :
English
Journal_Title :
Industry Applications, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-9994
Type :
jour
DOI :
10.1109/28.297920
Filename :
297920
Link To Document :
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