无刷直流电机无直轴电枢反应的非正弦转子磁场定向矢量控制技术

doi:10.19595/j.cnki.1000-6753.tces.210377

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Abstract This paper proposes a vector control strategy of brushless DC motor (BLDCM) based on rotor field orientation considering the non-sinusoidal field distribution, which can not only suppress the torque ripple without the detection of commutation zone, but also solve the problems of magnetization and demagnetization caused by d-axis armature reaction. Firstly, through the comparative analysis of the rotor flux waveform under different rotor field distributions, it is concluded that the 3s/2r transformation with the rotor position as rotation angle cannot achieve rotor field orientation when rotor field distribution is non-sinusoidal. Secondly, by changing the rotation angle in the 3s/2r transformation matrix, the rotor flux has no q-axis component after the transformation, thereby establishing a non-sinusoidal rotor field orientation coordinate system and obtaining a dynamic mathematical model under this coordinate system. Finally, the d-axis and q-axis armature currents for a given reference torque without d-axis armature reaction is deduced theoretically, and accordingly the rotor field oriented vector control system without d-axis armature reaction of BLDCM is constructed. The results of DSP experiments show the feasibility and effectiveness of the proposed strategy.

Key words： Brushless DC motor (BLDCM) non-sinusoidal magnetic field distribution rotor field orientation without d-axis armature reaction torque ripple reduction

Received: 19 March 2021

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TM351

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	Li Zhenguo
	Sun Qihang
	Wang Penglei
	Cui Yifeng

Cite this article:

Li Zhenguo,Sun Qihang,Wang Penglei等. Non-Sinusoidal Rotor Field Oriented Vector Control Technology Without d-Axis Armature Reaction in Brushless DC Motor[J]. Transactions of China Electrotechnical Society, 2022, 37(16): 4094-4103.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210377 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I16/4094

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