一种新颖的无传感器异步电动机直接转矩控制系统

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Abstract The high performance flux estimator is the key of sensorless induction motor(IM) direct torque control(DTC) system. So a new stator estimator method of combine the new modified low-pass filter(NMLPF) and phase locked loop(PLL) is proposed and a new induction motor sensorless DTC system base on the new method also is proposed. The new method improves the dynamic and static performance of sensorless induction motor DTC system. The simulation and experimental results show that the new sensorless IM DTC system has good dynamic and static performance and has good robustness to stator resistance.

Key words： Direct torque control(DTC) modified low-pass filter(MLPF) new modified low-pass filter(NMLPF) sensorless phase locked loop(PLL)

Received: 05 June 2007 Published: 18 February 2014

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TM346

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	Articles by authors
	He Zhiming
	Liao Yong
	Li Hui

Cite this article:

He Zhiming,Liao Yong,Li Hui. A Novel Sensorless Induction Motor DTC System[J]. Transactions of China Electrotechnical Society, 2009, 24(11): 21-25.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I11/21

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