Performance Analysis of a Five-phase Synchronous Reluctance Motor Connected to Matrix Converter

This paper analyses the performance of a high reliability multiphase electric drive system. The drive system consists of a five-phase synchronous reluctance machine (SynRM) connected to a three to five-phase matrix converter (MC). In this system, there is no vulnerable electrolytic DC-link capacitors, which considered a point of failure in conventional electric drive systems. The indirect space vector modulation (SVM) is used to control the five-phase MC. Indirect SVM deals with the five-phase MC as a virtual two-stage converter consisting of a virtual DC link, a virtual rectifier stage and a virtual inverter stage. In addition, a modified closed loop field-oriented control based on the indirect SVM is proposed to control the five-phase SynRM. The performance of the drive system is analyzed at different operating conditions.