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 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.展开更多
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)
文摘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.
