Continuous on-line adaptation of the rotor time constant in FOC induction machine system  

作　　者：齐昕 Ma Xianghua Wang Changsong Xi Anmin 

机构地区：[1]School of Mechanical Engineering,University of Science and Technology Beijing

出　　处：《High Technology Letters》2013年第3期254-260,共7页高技术通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.51276016);the Fundamental Research Funds for the Central University(No.FRF-TP-12-059A)

摘　　要：Rotor time constant is an important parameter for the indirect lleld oraentateO control of mauc- tion motor. Incorrect rotor tittle constant value will cause the flux observer generating a wrong angu- lar orientation of the rotor field. A new approach serves for rotor time constant on-line adaptation by setting the stator current to be zero for a short period. A smooth eorrector is designed to prevent ab- normal detection result from making adaptation. Impact of zero current duration on detection error and rotor speed is analyzed by experiments.Rotor time constant is an important parameter for the indirect field orientated control of induction motor.Incorrect rotor time constant value will cause the flux observer generating a wrong angular orientation of the rotor field.A new approach serves for rotor time constant on-line adaptation by setting the stator current to be zero for a short period.A smooth corrector is designed to prevent abnormal detection result from making adaptation.Impact of zero current duration on detection error and rotor speed is analyzed by experiments.

关 键 词：rotor time constant field oriented control （FOC） on-line adaptation inductionmotor 

分 类 号：TM346[电气工程—电机] TK263.72[动力工程及工程热物理—动力机械及工程]