Patent ID: 8885377
Filing Date: 2014-11-11
Classification: H02M

Abstract:
1. A matrix converter comprising: a power conversion unit that includes a plurality of bidirectional switches that connect each phase of an AC source and each phase of a load; and a control unit that controls the bidirectional switches, wherein the control unit is configured to generate a highest phase-to-phase voltage among load side phase-to-phase voltages by successive voltage pulses, each of the voltage pulses being generated by controlling bidirectional switches that connect phases with respect to the highest phase-to-phase voltage and phases with respect to a highest phase-to-phase voltage among AC-source side phase-to-phase voltages in each pulse period, and the control unit is configured to generate a middle phase-to-phase voltage among the load side phase-to-phase voltages by successive voltage pulses, each of the voltage pulses being generated by controlling bidirectional switches that connect phases with respect to the middle phase-to-phase voltage and phases with respect to a middle phase-to-phase voltage among the AC-source side phase-to-phase voltages in each pulse period.