Direct-Torque-Control Fault-Tolerant Strategies for Three Induction Motor Drive Systems Operating Under Single-Phase Open-Circuit Fault

Pedro H. M. Martins; Victor  F. M. B. Melo; Gilielson F. da Paz; Isaac  S. de Freitas

doi:10.48011/asba.v2i1.1325

Pedro H. M. Martins Universidade Federal da Paraíba
Victor F. M. B. Melo Universidade Federal da Paraíba
Gilielson F. da Paz Universidade Federal da Paraíba
Isaac S. de Freitas Universidade Federal da Paraíba

DOI: https://doi.org/10.48011/asba.v2i1.1325

Keywords: DTC, FOC, Fault-tolerance, Three-phase induction motor drives

Abstract

This paper discusses Direct-torque-control(DTC)-based fault-tolerance strategies applied to three fault-tolerant induction motor drive systems when they operate under single-phase open-circuit fault. Despite the fact that these drive systems have already been discussed in the literature, the reported papers always make use of Field-oriented-control(FOC)-based fault compensation strategies. In this way, performed simulations show that DTC-based strategies are feasible and are able to provide circular flux trajectory, which is the necessary condition for the motor operate properly.