Study of Stator Flux Observation Based on Extended Kalman Filter
Abstract：Direct torque control （DTC） is widely used in electromotor controlled by converting frequency. Conventional DTC observation is strongly influenced by the motor＇ s parameter. Based on the principle of Extended Kalman Filter （EKF） and the mathematic model of wounded asynchronous motor, the model of stator flux observer is established. By the Simulink simulation, the results of simulation confirm that the designed stator flux observer effectively improves the accuracy of parameters for DTC. It is positive for the converting frequency speed control.
Keywords：direct torque control (DTC)stator flux conversationextended Kalman filter (EKF)
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 5-7,12 )