Multiphase matrix converter for power system application

Abstract

A matrix NxM Multiphase Converter (MC) is a very simple structure incorporating NxM bi-directional switches, connecting N input phases to M output phases and able to convert input voltages into output voltages of any shape and frequency. However, commutation problems and complicated control algorithms keep it from being utilized on a large scale. This paper shows a new application field for multiphase matrix converters and its practical realization. Practical applications of multiphase matrix converter in power system require the study of application requirements, possible converter topologies and the development of new, reliable control algorithms. The MC is working as a connection device between power systems or as an interconnection device within the power system. The proposed tasks performed by the MC in power system are power flow control and power flow oscillations dumping. The device can be viewed as new FACS device- series power system connector, based on straight forward energy conversion.