RDDSCPMSMVC: PMSM Vector Control with Single-Shunt Current-Sensing Reference Design Using MC56F8013/23

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• Overview
• Features
• Block Diagram
• Board
• Design Resources

Overview

This application creates a vector control PMSM drive with optional speed closed-loop using a quadrature encoder, and serves as an example of a PMSM vector control system design based on the cost-effective 32-MIPS NXP® digital signal controller MC56F80XX.

• Dedicated algorithms such as transformations, PI controllers and space vector modulation, are implemented using NXP’s Motor Control Library
• This cost-effective and highly reliable solution minimizes system cost, as the algorithm implements a single shunt current sensing, reducing 3 current sensors to one
• The reference manual provides a detailed description of the application, including the design of the hardware and the software

Features

• Designed to fit into consumer and industrial applications
• Uses 56F8013 or 56F8023 32 MIPS Digital Signal Controller
• Running on a 3-phase High Voltage Power Stage
• Vector control of PMSM using theQuadrature Encoder as a position sensor
• Control technique incorporates:
• • Vector control with speed closed-loop with position encoder
  • Rotation in both direction
  • Start from any motor position with rotor alignment
  • 4-quadrant operation
  • Reconstruction of three-phase motor currents from DC-Bus shunt resistor
  • Wide speed range
• FreeMASTER Control Interface
• Fault protection - overcurrent, overvoltage, undervoltage

Block Diagram

Board

Design Resources