基于增强型自适应观测器的永磁同步电机无速度传感器

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Abstract This paper studies an enhanced adaptive observer to estimates speed and position of the rotor to satisfy the needs of full-speed implement for SPMSM drives. This method is based on a speed-adaptive observer that is enhanced with a high-frequency signal injection technique fitted for SMPSM drive, and high-frequency signal injection technique operates at low speed region to correct the output signal of speed-adaptive observer, while operates at the higher speed region, the speed-adaptive observer works solely. This makes the enhanced adaptive observer not only has good dynamic performance but also estimation precision. This enhanced adaptive observer combined the fast dynamic response of adaptive model with steady-state accuracy of HF signal injection method can start up under close loop condition. When it works at full speeds it obtains a smooth transition between the two regions. The experimental results verify the effectiveness and applicability of the enhanced adaptive observer.

Key words： SPMSM speed sensorless control HF signal injection speed-adaptive observer enhanced adaptive observer

Received: 10 July 2007 Published: 12 February 2014

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TM351

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	Hao Wenjuan
	Deng Zhiquan
	Wang Xiaolin

Cite this article:

Hao Wenjuan,Deng Zhiquan,Wang Xiaolin. Enhanced Adaptive Observer for Sensorless PMSM Drive System[J]. Transactions of China Electrotechnical Society, 2009, 24(3): 41-46.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I3/41

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作者简介
郝雯娟女, 1982年生, 硕士, 主要研究方向为电力传动控制系统。
邓智泉男, 1969年生, 博士, 教授, 博士生导师, 主要研究方向为无轴承电机、高速电机。