针对永磁同步电机的解耦预测转矩控制策略研究及其无位置传感器对比分析

doi:10.19595/j.cnki.1000-6753.tces.L80694

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Abstract Firstly, in order to solve the problems of traditional predict torque control with large flux and torque ripples, unfixed switching frequency, etc., a duty cycle modulation method based on the traditional predict torque control is proposed to improve the control performance. Secondly, in view of the complexity of the traditional predictive torque control with duty cycle modulation, the flux and torque are completely decoupled based on the stator flux coordinate system. Then, a simpler predictive torque control strategy with duty cycle modulation is proposed, which eliminates weight coefficient and converts torque error into the action time of voltage vector. Thirdly, an adaptive sliding mode observer is designed for solving the problems of poor robustness of model reference adaptive system and large-scale switch chattering of the sliding mode observer. The sliding mode observer and adaptive sliding mode observer are applied to the optimized predict torque control and the stability and parameter robustness of two observers are compared. Finally, the superiority of the proposed strategy and adaptive sliding mode observer are verified by simulation studies.

Key words： Predict torque control flux and torque ripples duty cycle modulation sliding mode observer adaptive sliding mode observer

Received: 09 July 2018 Published: 15 February 2019

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TM351

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	Articles by authors
	Ban Fei
	Lian Guangkun
	Chen Biao
	Gu Guobiao

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Ban Fei,Lian Guangkun,Chen Biao等. Comparative Analysis of Sensorless Control Methods Based on the Decoupling Predictive Torque Control Strategy for Permanent Magnet Synchronous Motor[J]. Transactions of China Electrotechnical Society, 2018, 33(zk2): 401-410.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L80694 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/Izk2/401

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