驱动ACIM的dsPIC DSC的MCPWM模块

This document presents an overview of the Motor Con-
trol PWM module (MCPWM) present on the motor con-
trol family of dsPIC30F Digital Signal Controllers. Code
examples are included for a typical three-phase AC
Induction Motor (ACIM) control application using a
Three-Phase Inverter topology.
GS004
Driving an ACIM with the dsPIC DSC MCPWM Module
The inductance of the motor windings filters the current
Author: Jorge Zambada from a PWM voltage source as shown in Figure 1.
Microchip Technology Inc. Based on this principle we can generate sine waves
with PWM signals to energize a three-phase ACIM, as
INTRODUCTION we will see shortly in this document.

This document presents an overview of the Motor Con- FIGURE 1: CURRENT WA