MULTI-PHASE INVERTER CONTROL DEVICE AND CURRENT CONTROL METHOD FOR THE SAME

Abstract

The present invention provides a multi-phase inverter control device and a current control method for the same. The multi-phase inverter control device comprises a discrete circuit receiving CT IOCCS, CT IOCS and CT LIVS, and converting them into a plurality of DT signals; a multi-dimensional quantization circuit calculating according to an MDFQCC (Multi-Dimensional Feedback Quantization Current Control) algorithm to obtain DT IOVS for determining a plurality of switching signals; a driver circuit receiving the switching signals, and converting the switching signals into a plurality of switch driving signals; and an inverter circuit receiving the switch driving signals to output voltage across the load. The present invention decreases switching frequency, reduces switching loss and controls the inverter to output current efficiently.