基于有效磁链的电励磁同步电机无速度传感器控制

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Abstract A novel speed sensor-less control method of electronically excited synchronous motor, based on active-flux for wide speed range, was proposed. The active-flux vector is defined as the flux generated by the torque, and for electronically excited synchronous motor, the active-flux was on the d-axis of the rotor. Therefore, the identification of the rotor position angle and speed can be realized by the accurate observation on the active-flux's amplitude and phase. On this basis, the active-flux observation model taken into account the effect of damping current was proposed for electronically excited synchronous motor with damper winding, to improve the identification accuracy and obtain excellent dynamic torque characteristics. Meanwhile, the accurate active-flux was acquired though nonlinear flux observer, considering the saturation effect. The experimental results proved the proposed control scheme was simple and easy to implement, which has excellent control performance and fast torque response.

Key words： Electronically excited synchronous motor speed sensor-less active-flux saturation effect

Received: 21 February 2014 Published: 01 April 2016

PACS:

TM301.2

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	Wu Xuanqin
	Tan Guojun
	He Fengyou
	Li Hao

Cite this article:

Wu Xuanqin,Tan Guojun,He Fengyou等. Speed Sensor-less Control of Electronically Excited Synchronous Motor Based on Active-Flux[J]. Transactions of China Electrotechnical Society, 2016, 31(6): 81-90.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I6/81

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