This paper presents a novel sensorless control of interior permanent magnet synchronous motor with resilient extended Kalman filter. In comparison to the field-oriented control scheme, direct torque control has advantages due to its simple structure (without the Park's transform stage and space vector pulse width modulation), excellent transient response, high reliability and robustness. The interior permanent magnet synchronous motors have been extensively used in industrial applications due to their high efficiency, large torque to weight ratio, high performance and high reliability. Traditionally, the rotor position and speed of rotation are directly fed back through encoders and resolvers. In order to provide a more reliable and cost saving approach, the sensorless direct torque control of permanent magnet synchronous motor technique is proposed to eliminate the usage of encoders or resolvers. A novel nonlinear estimator, the resilient extended Kalman filter is developed, which shows superior estimation accuracy compared with other estimation approaches such as the extended Kalman filter. Computer simulation studies have been conducted to show the better performance of the proposed approach.
|Commitee:||Leander, Robert, York, Tim|
|School:||Southern Illinois University at Edwardsville|
|Department:||Electrical and Computer Engineering|
|School Location:||United States -- Illinois|
|Source:||MAI 56/03M(E), Masters Abstracts International|
|Keywords:||Direct torque control, Interior permanent magnet synchronous motor, Resilient extended Kalman filter, Sensorless control|
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