MAXIMUM TORQUE CONTROL SYSTEM FOR IPMSM

摘要

A maximum torque control system for an IPMSM(Interior Permanent Magnet Synchronous Motor) is provided to reduce energy consumption of an electronic apparatus through an optimal reference current for maximizing an operation torque of the IPMSM. A speed measuring unit(5) measures an actual speed of an IPMSM, which is inputted from the IPMSM to a speed controller. The speed controller(1) receives an error between an instruction speed and the actual speed as an input and outputs a torque component instruction current. A field weakening controller(6) receives the torque component instruction current and the actual speed of the IPMSM and outputs a magnetic flux component instruction current. A current controller(2) receives the torque component instruction current and the magnetic flux component instruction current and outputs phase voltage instruction values. A space vector PWM(Pulse Width Modulation) inverter(3) receives the phase voltage instruction values and drives the IPMSM.