Fault-tolerant voltage-fed PWM inverter AC motor drive systems
de Araujo Ribeiro, R.L.
Jacobina, C.B.
da Silva, E.R.C.
Lima, A.M.N.
Dept. de Eletro-Eletronica, Centro Fed. de Educacao Tecnologica do Maranhao, Sao Luis, Brazil;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: April 2004
Volume: 51,
Issue: 2
On page(s): 439- 446
ISSN: 0278-0046
INSPEC Accession Number: 7964599
Digital Object Identifier: 10.1109/TIE.2004.825284
Current Version Published: 2004-04-05
Abstract
This paper shows how to integrate fault compensation strategies into two different types of configurations of induction motor drive systems. The proposed strategies provide compensation for open-circuit and short-circuit failures occurring in the converter power devices. The fault compensation is achieved by reconfiguring the power converter topology with the help of isolating and connecting devices. These devices are used to redefine the post-fault converter topology. This allows for continuous free operation of the drive after isolation of the faulty power switches in the converter. Experimental results demonstrate the validity of the proposed systems.
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