Open End Winding Induction Machine Fed by a Dual Output Indirect Matrix Converter
Open ended winding induction machines fed from standard two level voltage source inverters (VSIs) provide an attractive arrangement for ac drives. An alternative approach is to use a dual output indirect matrix converter (IMC) It is well known that the IMC provides fully bidirectional power flow operation, with small input size filter requirements. While a standard IMC consists of an ac dc matrix converter (MC) input stage followed by a single VSI output stage, it is possible to replicate the VSI to produce multiple outputs. In this paper, an open end winding induction machine fed by an IMC with two output stages is presented. The IMC modulation strategy aims to reduce the common mode voltage (CMV) while compensating any zero sequence voltage fed to the machine. The system is modeled using a PSIM and MATLAB/Simulink platform. Experimental results demonstrating the viability of the method are presented using a 7.5 kW prototype.
IEEE Transactions on Industrial Electronics