The Design for a Permanent Magnet Synchronous Motor Servo Control System Based on DSP

Abstract

At present,the digital AC servo system with permanent magnet synchronous motor(PMSM) is gradually re-placing the DC servo system in the CNC machine tools,automatic production lines,industrial robots and other small power applications.The mathematical model of PMSM and field-oriented control principle are described.Using DSP TMS320F2808 as the core,and combining the feature of the servo-control,a PMSM servo hardware system is designed which has multi-functions and good real-time performance.The experimental results show that the current loop re-spond quickly,speed and position closed-loop control have no steady-state error.The hardware platform is verified to be reliable and has fast control speed.