无速度传感器异步电机转子磁场定向自适应鲁棒控制

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Abstract An adaptive robust control strategy is proposed to increase robustness of parameters variation and load disturbance for sensorless field-oriented controlled induction motor drives. Improved method of the adaptive full-order observer is presented. Observer error system is transformed to synchronous reference frame for avoiding nonlinear and complicated dynamics of the observer. Stability conditions can be achieved through the single-input and single-output error system. To improve robustness of parameter variation for the observer, stator resistance is estimated through an improved adaptive mechanism synchronously. Based on the analysis of dynamic model of field-oriented controlled induction motor considering the load disturbance, an adaptive disturbance torque feedforward controller is adopted to achieve satisfactory dynamic response. The feasibility of the proposed control strategy is verified by experimental results of speed sensorless field-oriented vector controlled 11kW induction motor drive.

Key words： Induction motor speed sensorless adaptive control full-order observer disturbance observer

Received: 03 July 2009 Published: 04 March 2014

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TM346

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	Wang Gaolin
	Yang Rongfeng
	Yu Yong
	Chen Wei
	Xu Dianguo

Cite this article:

Wang Gaolin,Yang Rongfeng,Yu Yong等. Adaptive Robust Control for Speed Sensorless Field-Oriented Controlled Induction Motor Drives[J]. Transactions of China Electrotechnical Society, 2010, 25(10): 73-80.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I10/73

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