PWM control apparatus for interphase reactor multiplex inverter

摘要

A PWM control apparatus for an interphase reactor multiplex inverter in which the load current in each phase output from the midpoint of each of the interphase reactors is quickly controlled by feedback control with a signal corresponding to the sum of the output currents of the inverters in the same phase, the voltage command value for each phase of each inverter is corrected with a signal corresponding to the difference between output currents of the inverters in the same phase (proportional to the circulating current), whereby the interphase voltage difference developed across the interphase reactor in each phase is quickly controlled and the circulating current in each phase is controlled to become extremely small.