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This paper analyzes the Extend Kalman Filter(EKF)based on Γ-1-type motor model, and on this basis, the sensor less rotor field-oriented control induction motor drive system is developed. EKF Analysis under Γ-1-type model simplifies the state matrix and reduces computation of EKF. Changes of motor parameters in EKF are attributed to the state noise. It makes the output values of EKF observe more accurate,...
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