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During the recent years one of the major topics in railway traction system research is the degraded operating mode. This paper deals with application of a new proposal known as Contribution to the direct control of torque utilising dual starts induction motor to meet with rescue mode requirements, The research discussed consists of how to manage the rescue mode of applications using the AC motor for traction system when part of the winding is defective or one semiconductor switch in the inverter is short-circuited by using a backup software and switching mechanism. The proposed solution uses the conventional direct control of torque with double star induction motor with a series of modifications.

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