基于双辨识参数全阶自适应观测器的感应电机低速性能

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Abstract A novel sensorless vector control method for induction motor is proposed, based on two-parameter identified adaptive full-order observer. The system stability is analyzed according to the Popov hyper stability theory. Based on the traditional adaptive full-order observer, the selection principle of feedback gain matrix scheme is studied. And then a proper feedback gain matrix is designed to ensure the system stability in the full speed range. After analyzing the impacts of the stator resistance variation over the speed estimation in low-speed range, the two-parameter identified adaptive full-order observer is designed. The designed observer can identify the rotor speed and stator resistance simultaneously. Therefore, the low-speed performance with load is improved effectively. The experiments have verified the designed observer.

Key words： Adaptive full-order observer two-parameter identified induction motor low speed

Received: 10 December 2015 Published: 01 November 2016

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TM346

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	Articles by authors
	Yin Zhonggang
	Zhang Yanqing
	Du Chao
	Sun Xiangdong
	Zhong Yanru

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Yin Zhonggang,Zhang Yanqing,Du Chao等. Low-Speed Performance of Sensorless Vector Control for Induction Motor Based on Two-Parameter Identified Adaptive Full-Order Observer[J]. Transactions of China Electrotechnical Society, 2016, 31(20): 111-121.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I20/111

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