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| EKF Analysis and Speed Sensorless Control Based on Γ-1 Model |
| Zhao Minghua1, 2, Liu Zhigang1, Dong Kan1 |
| 1. Beijing Jiaotong University Beijing 100044 China 2. Changchun Railway Vehicles Co., Ltd. Changchun 130062 China |
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Abstract To ensure the vehicle’s normal operation after a failure in the speed sensor, based on using the existing sensors, this paper has a research on speed sensorless vector control system. The Γ-1 model of induction motor is introduced, based on which the extended Kalman filter (EKF) observer and speed estimation problem are studied. A speed sensorless control system is constructed, which has been proved the feasibility via experiments.
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Received: 02 November 2010
Published: 07 March 2014
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2011, Vol. 26 
