This paper proposes a fault identification method for the asymmetric converter in a switched reluctance motor (SRM). The
Identification method include fault diagnosis and tolerance control. The switches in an asymmetric converter and gate drivers are
easily destroyed while the role of these components is important. When a fault is emerged on the switches it can cause a primary
and secondary problem to the system. In this paper, the diagnostic method relies on analyzing the Park’s vector representation of
the current variation from short and open faults. The fault tolerance method utilizes the characteristics of the SRM. It can diagnose
and tolerate the fault without additional equipment. Simulations and experiments have been performed on the 1.5kW SRM drive and
its results are presented to verify the validity of the proposed method.
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