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A fault tolerant induction motor drive system by using a compensation strategy on the PWM-VSI topology

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4 Author(s)
Ribeiro, R.L.A. ; Departamento de Engenharia Eletrica, Univ. Fed. da Paraiba, Campina Grande, Brazil ; Jacobina, C.B. ; da Silva, E.R.C. ; Lima, A.M.N.

This paper proposes the possibility of developing fault diagnosis and remedial operating strategies, which enable a fault tolerant induction motor drive system. The fault mode investigated is the case in which a misfiring does occur in one of the power switches. The fault diagnosis is achieved by using a strategy that permits both identification and isolation of the faulty components. The fault tolerance is obtained by reconfiguration of the inverter topology. This allows for continuous free operation of the drive even with complete loss of one of the legs of the inverter. Experimental results demonstrate the validity of the system proposed

Published in:

Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual  (Volume:2 )

Date of Conference:

2001