基于自适应观测器的异步电机无速度传感器模糊矢量控制

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Abstract A novel speed adaptive flux observer (SAFO) is proposed in this paper, which employs a simplified method for observer gain selection and improves the stability of observer. Furthermore, the dynamic performance of speed estimation is improved by introducing the load torque observer. Fuzzy logic controllers (FLC) are used for rotor speed and flux control in the outer loop of field oriented control, which exhibits more excellent performance than that of conventional PI controller. Experimental results obtain from a three-level inverter platform prove that the sensorless control system using FLC and SAFO has excellent performance over a wide speed range.

Key words： Adaptive observer fuzzy logic speed sensorless vector control

Received: 10 September 2008 Published: 04 March 2014

PACS:	TM343
	TM921

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	Zhang Yongchang
	Zhao Zhengming

Cite this article:

Zhang Yongchang,Zhao Zhengming. Speed Sensorless Fuzzy Vector Control of Induction Motor Using an Adaptive Observer[J]. Transactions of China Electrotechnical Society, 2010, 25(3): 40-47.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I3/40

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