考虑非观测区补偿的永磁同步电机单电阻采样重构

doi:10.19595/j.cnki.1000-6753.tces.171752

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Abstract To further realize the low cost, small size and high performance of permanent magnet synchronous motor (PMSM) vector control, a novel three-phase current reconstruction method based on single current sensor is proposed. The principle of three-phase current reconstruction technique is studied, and the relationship between DC-bus current and phase currents of SVPWM controlled three-phase inverter is set up in different voltage vectors combined with the motor drive system. The region in which the phase current is unable to reconstruct is defined as non-observation area. Through adjusting the duty ratio of SVPWM, a novel method using the non-observation area compensation for solving the problem of reconstruct phase current in non-observation area is proposed. The comparisons of experimental results verify the validity and reliability of this method.

Key words： Permanent magnet synchronous motor single resistance sampling current reconstruction space vector PWM non-observation area compensation

Received: 02 January 2018 Published: 22 June 2018

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TM341

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	Articles by authors
	Wei Haifeng
	Lu Yanru
	Jiang Tingyu
	Li Yuanjiang
	Chu Jianhua

Cite this article:

Wei Haifeng,Lu Yanru,Jiang Tingyu等. Single Resistor Sampling Reconstruction of Permanent Magnet Synchronous Motor Considering Non-Observation Area Compensation[J]. Transactions of China Electrotechnical Society, 2018, 33(12): 2695-2702.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.171752 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I12/2695

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