基于脉振高频电压注入的永磁同步电机无速度传感器控制

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Abstract In order to overcome the defects which is brought by the installation of speed sensor, and also to solve the failure of low speed operation in traditional technique, a high frequency voltage is injected into the motor and causes a little change of current signal because of the anisotropy of the machine. The method which does not depend on the motor fundamental equations and parameters is based on natural or artificial motor salient effect. Rotor position and speed including zero speed can be effectively estimated. The way to observe the original motor position when PMSM is standstill is also presented in order to solve the starting problem of PMSM．Simulation results illustrate that the proposed method can reliably realize on the low speed and control of the rotor position and speed, including initial position; and the system has good performance both in steady and dynamic states.

Key words： keywords：Permanent magnet synchronous motor high-frequency signal injection method speed sensorless control saliency effect

Received: 10 September 2012 Published: 12 December 2013

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TM301

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	Articles by authors
	Li Yuanyuan
	Huang Shoudao
	Xu Qiong
	Liu Xiong
	Long Xu

Cite this article:

Li Yuanyuan,Huang Shoudao,Xu Qiong等. Sensorless Control of Permanent Magnet Synchronous Motor Based on High Frequency Voltage Signal Injection[J]. Transactions of China Electrotechnical Society, 2013, 28(1增): 326-330.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I1增/326

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