Title :
Speed-sensorless Direct Torque Control for Asynchronous Machine Based on Extended Kalman Filter
Author :
Xianxing, Liu ; Wei, Qiao ; Xu, Zhou ; Hu Yuwen
Author_Institution :
Nanjing Univ. of Aeronaut. & Astronaut., Nanjing
Abstract :
Allusion to the characteristic of direct torque control system, the state equation for extended Kalman filter was established by stator variables. The real-time forecasting and filtering iterative algorithm were founded in order to real-time control. Speed and stator flux can be discerned through the stator current and voltage, and the speed-sensorless direct torque control for asynchronous motor was realized . Simulation results show that the speed have a high accuracy and a good robustness.
Keywords :
Kalman filters; asynchronous machines; machine control; stators; torque control; velocity control; asynchronous machine; extended Kalman filter; real-time control; real-time filtering; real-time forecasting; speed-sensorless direct torque control; stator variables; Equations; Filtering; Iterative algorithms; Mathematical model; Pulse width modulation; Robustness; Stators; Tellurium; Torque control; asynchronous machine; direct torque control; extended kalman filter; speed-sensorless;
Conference_Titel :
Control Conference, 2007. CCC 2007. Chinese
Conference_Location :
Hunan
Print_ISBN :
978-7-81124-055-9
Electronic_ISBN :
978-7-900719-22-5
DOI :
10.1109/CHICC.2006.4346881
