Patent ID: 9350227
Filing Date: 2016-05-24
CPC Classification: H02M

Claim Text:
1. A power converter control method of controlling a direct AC-AC power converter which comprises: a rectifier circuit which inputs first AC voltages and outputs a rectified voltage; and a voltage source inverter which inputs said rectified voltage, applies three-phase second AC voltages to a load, and outputs three-phase load currents to said load, wherein a modulation factor of said voltage source inverter includes a DC component and an AC component which is an angular frequency which is a 6n multiple (n is a natural number) of a base fundamental angular frequency of said second AC voltage, and when a fundamental wave component, a (6n−1)th order component and a (6n+1)th order component of said load current are Iu a ratio of an amplitude of said AC component with respect to said DC component takes a ratio represented by a phase difference (Φ with relationship of Iu