A Control System Design of Permanent Magnet Synchronouse Machine Based on DSP

　　A Control System Design of Permanent Magnet Synchronouse Machine Based on DSP
　　The Purpose of this paper is design a good performance, high regulation ratio control system of Permanent Magnet Synchronous Machine (PMSM). To achieve this, some control arithmetic for improving the precision and performance are studied and the designing of hardware and software of system is researched.Comparing to the servo motor, the machine used as a spindle not only must have the performance of high speed, short starting time, little fluctuation neodymium magnets of speed, big torque and power, but also has to have a wide speed regulation range. It can run in high speed perfectly, and also run in low speed with as large as possible torque outputting. To achieve this, field-weakening control is used in this paper.The hardware designing contains four parts, which are main circuit designing, control system designing, drive system designing and some protection circuit designing, all of these compose the integrated whole which provide a solid base for the control system.Based on the hardware, PI arithmetic is used to modulate the speed and current vector, flux-weakening arithmetic is used to control the excitated current of the rotor and the space vector arithmetic is also used to create the SVPWM, which makes the IPM produce alternating voltage serial which makes the http://www.chinamagnets.biz motor run. The vector control arithmetic is proved correct by the simulation of Matlab.It is easer to program by using the TMS320LF2407A which is of excellent capability of operation and fast real-time processing to achieve the complex control arithmetic and it also can implement the excellent performance control motor. This system in this paper is a foundation to research the better speed-modulation system of AC motor.Finally, the hardware and software of this system are proved correct by experiments, they can control the speed accurately and elevate the speed of motor effectively, all of these make a foundation for the further research.