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《Journal of Jilin University(Information Science Edition)》 2009-01
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Algorithms of Sensorless PMSM Control System Based on Direct Computation and Model Reference Adaptive System

QI Ji-long~a,TIAN Yan-tao~a,GONG Yi-min~b,ZHU Cheng~b(a.College of Communication Engineering,Jilin University,Changchun 130025,China;b.College of Physics,Jilin University,Changchun 130023,China)  
When sensorless control system is applied in vector control and direct torque control system the responses are different for the different characters of the vector control system and direct torque control system.We analyze mathematic models of PMSM(Permanent Magnet Synchronous Motor) and the results of rotor angle are generalized by the voltage and current which were meatured by sensors,the simulation results of vector control system and direct torque control system without position sensor are provided.The direct torque control system adopted MRAS(Model Reference Adaptive System) sensorless system are discussed and the results of the system are provided.The results indicate that rotor speed of vector control is steady.Ripple of rotor speed of direct torque control system is big and response of rotor speed is rapid.The ability of anti disturb of direct torque control system is better.
【Fund】: 吉林省科技发展计划重大基金资助项目(20050301)
【CateGory Index】: TM341
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