The Servo Control System Based on DSP for AC Synchronous Linear Motor

　　The Servo Control System Based on DSP for AC Synchronous Linear Motor
　　For the past ten years, along with the development of the high speed process technology, the precise technique of manufacture and the numerical control technology, advanced technique of manufacture’s development, high speed, highly effective, high precision becomes the current in numerical control equipment’s development direction. And there are required to the equipment various functional components’s performance in a higher way, which is the feed driving system, including the quick feed rate, the high pointing accuracy as well as the high dynamic response performance. PMSLM (Permanent Magnet Synchronous Linear Motor) as a new way to the neodymium standard state feed drive system in the NC machine tool and the machining center has certain representation..
　　The closed-loop control system in position ,which takes the DSP as a core, is representing the main direction in the precise numerical position control of a motor . Choosing the appropriate PMSLM and the actuation control system, and the reasonable machine design, may produce the high performance and the redundant reliable machine tool definitely. Therefore, it is the important theory significance and the broad application prospect that research on its servo control theory and the method.This article researchs mainly on these contents, including the analysis to PMSLM ’s structure and the principle of work which involves in the voltage equation, the mechanical movement equation and mechanical and electrical coupling equation, and making its mathematical model. To the PMSLM’s good position track performance which meets to the servocontrol request, It also involves unifing the traditional PID control and the intelligent control, and designing self-correcting PID controller based on the fuzzy reasoning, making the system simulation with the MATLAB and analyzing the results. On the http://www.999magnet.com/products/112-neodymium-standard-state base of the analysis and the research on the linear motor servocontrol’s gross structure, it has designed control system which based on the DSP’s (TMS320LF2407A) entire digit position servocontrol, and making program in corresponding servo-control software by the C language. In the platform based on the DSP development system, the text has studied the linear motor ’s dynamic property, used it’s diffraction grating ruler.The experimental result indicated that this control system and method is in good with the active cell’s regulating speed to be faster and active cell pointing accuracy to be higher.This confirmed that this control system of the linear motor is feasible.