基于反电动势积分法的无位置传感器直流无刷电机试探性起动研究

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Abstract The major problem in starting a sensorless BLDCM with the 3-stage strategy is to satisfy a wide range of torque load with one set of parameter.In oder to raise the success rate and smoothness under different load, a tentative strategy of starting sensorless BLDCM with the method of integrating the back EMF is designed. It is proved in this paper that a fixed gate value of integration is universally proper in all speed range. The unique advantage of the method of back EMF integration method is especially pointed out. The characteristic of back EMF under different rotor speed and rotor to stator angle was analysed to help to figure out the sector that the rotor magnetic motive force was pointing at a controller with the strategy proposed is designed.The result of experiments shows that the success rate and the smoothness are improved with the torque response quicker and more stable.

Key words： BLDCM sensorless control integrate back EMF tentative strategy

Received: 24 November 2011 Published: 20 March 2014

PACS:

TM301

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	Wang Dafang
	Liu Zhiqi
	Jin Yi
	Zhao Guifan

Cite this article:

Wang Dafang,Liu Zhiqi,Jin Yi等. Tentative Strategy of Starting Sensorless BLDCM with the Method of Integrating the Back EMF[J]. Transactions of China Electrotechnical Society, 2012, 27(12): 178-184.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I12/178

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