基于TMS320F2812的交流变频调速控制系统的分析-物理电子学专业论文.docxVIP

à 原理工大学硕 1 研究生学位论文 RESEARCH ON AC VARIABLE-FREQUENCY SPEED ADJUSTING CONTROL SYSTEM BASED ON TMS320F2812 ABSTRACT lts the developing trend that AC motor will instead of DC motor. And the 仕equency conversion technology of AC motor has become a popular way to Adjustable-speed for its excellent characteristics. It is one of major means of promotion technology to save energy and improve process flaw in order to raise the product quality and improve environment. This paper uses TMS320F2812 as main control chip，combine with High-speed digital processor and intelligent control theory which will make Frequency conversion system more intelligent. This paper describes the fundamental principles the vo1tage space vector pulse width modulation (SVPWM) ，the inverters based on SVPWM technique bave many good qualitics，sucb as less pulsating torque，higher use of DC bus voltage，less switching loss. So it is applicable for the bigh-performance motor control system.This paper is base on Vector control 由eory Combine wìtb Motor mathematical model and use the signal producing by SVP\\爪t1 tech to Drive motor. The hardware system uses tbeAC-DC-AC Topologica l structure.The system can judge the torque size of its output by busbar current，and protect 由e III 太原理工 大学 GYl士研究生学位论又; circuit to control motor in time by Temperature，pressure，flow，over torque，to ensure the Stability and reliability ofthe System performance. This paper elaborates the matbematics modcl establishm ent of asynchronous motor and using MatlabíSimulink software environment to establish a simulation model which wíU regulate Simulation parameters and analyse sirnulation waveforrn. La8t，test the motor sample，analyse its test waveforms figure. 八nd get the result t11at 出e static perforrnance and dynamic perfoffi1ance of this system are good . Also this system has met the requireroent of Higb-performa nce ac speed regulation system. ln the end，we SlJm up the insufficiency of the wh ole system and predict the direction of 如此h