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Simplified voltage behind reactance model for the six-phase open-end salient pole PMSM

Abstract:

In the last years an increasing interest in modeling, design and control of poly-phase machines can be noticed, mainly due to the greater fault tolerance capability of these kind of machines, as well as to the lower prices of electronic switches required in the power drive. This work deals mainly with developing a voltage-behind-reactance (VBR) model for the sixphase symmetrical salient-pole permanent magnet synchronous machine (PMSM) using a simplified space vector approach. This representation eases studying the machine operation under open-phase fault condition. Also, the particularities of the openend machine can be readily simulated using the VBR model. Finally, the behavior of the developed VBR model was tested against the standard representation of the machine's current mode differential equation.