Output current waveform control method and inverter device of the inverter

摘要

PROBLEM TO BE SOLVED: To obtain an output current with low distortion by forming a current command correction waveform for canceling steady distortion, and by correcting a current command signal corresponding to the current command correction waveform, even when steady harmonic distortion constituent exists in an inverter output current. ;SOLUTION: An error waveform Aa between the waveforms of an inverter output current IS and a current command signal AS is integrated for creating a current command correction waveform Aai, the current command signal AS is corrected corresponding to the current command correction waveform, and the amplitude of a current command signal ASc is changed based on an inverter output power command 10, thus controlling current feedback with low distortion without extremely increasing the amplification rate of a deviation and at the same time increasing the response property of the current command signal AS.;COPYRIGHT: (C)1999,JPO