Speed Control of a Six-Phase IM with Reactive Power Minimization for a Multi-Modular Matrix Converter Using an Inner PTC

This paper presents the speed control of a six-phase induction machine (SPIM) fed by a multi-modular matrix converter (M-MMC) with input source reactive power minimization, using predictive torque and electromagnetic flux control (PTC). This new system inherits the advantages of both multiphase machines (i.e fault tolerance and better power distribution per phase compared to three-phase machines) and those of M-MMC (i.e smaller size and weight, and no bulky storage elements). In addition, with the M-MMC topology it is possible to use two power generation sources of different characteristics instead of a single three-phase source. Results are provided for speed, torque and flux control of the SPIM and minimization of reactive power at the input source.