Design Of Universal AC Servo System Of Permanent Magnet Synchronous Motor

Servo system combines the electrical motor theory with the modern power electronics techniques, sensor techniques, microprocessor techniques and advanced control theory.The dissertation focuses on the design of the system for permanent magnet synchronous motor servo system based on the most advanced DSP chip TMS320F2812, and has done some theoretic research as well as experimental research to some key parts.Firstly, the dissertation summarizes the current development of AC servo systems, and understands the significance of the developing PMSM servo system clearly, then bring forward the content and plain for the study.Secondly, the dissertation introduces how PMSM works and how to control it. It summarizes the principle and implementation of the Field-Oriented Control, adopts the field-weaken based on the smallest port voltage ratio to extend the range of speed, and designs the control scheme of AC servo control system.Thirdly, an experimental platform of motor control using SVPWM to achieve Field-Oriented Control is designed based on TMS320F2812 in this dissertation, in which the main circuit is a type of two level voltage three-phrase AC-DC-AC inverter. IPM (Intelligent Power Module) is used as the inverter. At the same time, do some researching on the design of hardware and software for the system.At the same time,also do some researching on the EMI(Electronic Magnetic Interference) and EMC( Electronic Magnetic Compatibility) of the system.Finally, the result of experiment is proved correct and deepened the conclusions drawn from theoretic research.