INVERTER ARRANGEMENT AND CONTROL METHOD FOR INVERTER ARRANGEMENT

摘要

PROBLEM TO BE SOLVED: To provide an inverter arrangement and a control method for inverter arrangement wherein complicated processing is simplified.

SOLUTION: The inverter arrangement comprises: an A-D converting unit 31 which detects the output current of the inverter with a predetermined sampling cycle; a current converting unit 33 which converts the instantaneous value of the output current of the inverter into a peak value based on the phase of the output current; a computing unit 36 which compares the peak value of the output current of the inverter with the peak value of the target output current of the inverter, and sets a peak set value of the output current of the inverter so as to bring the output current of the inverter close to the target output current of the inverter; a voltage converting unit 37 which converts the peak set value into an instantaneous set value based on the phase of the output current; and a PWM control unit 38 which controls the inverter in accordance with the instantaneous set value.

COPYRIGHT: (C)2004,JPO&NCIPI