基于<em>H</em><sub>∞</sub>非线性控制器的电动汽车无线充电系统的副边控制设计与参数优化

doi:10.19595/j.cnki.1000-6753.tces.201591

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Abstract

Aiming at the fast charging mode of variable voltage intermittent charging for power battery packs of electric vehicle, a secondary control method based on H_∞ nonlinear controller for SP magnetic coupling resonance wireless power transfer (MCR-WPT) system was proposed. The output voltage characteristics of SP MCR-WPT system were analyzed based on its mathematical model. The control strategy on the secondary side was determined, and the H_∞ nonlinear controller for DC-DC converter on the secondary side was designed. A multi-objective and multi-constraint algorithm (NSGA-Ⅱ) was used to automatically optimize the controller parameters during variable voltage intermittent charging process. As the results, rise time, steady-state error and robustness of parameter disturbances in the closed-loop system are effectively improved. Then, the anti-jamming simulation of Buck converter and variable voltage intermittent charging characteristics simulation of the system were carried out. The simulation results show that the system can realize variable voltage intermittent charging, and has strong robustness and good dynamic response. Finally, the output characteristic experiment of the system was designed. The experimental results verify the effectiveness of the H_∞ nonlinear controller and its parameter optimization proposed in this paper.

Key words： Variable voltage intermittent charging wireless power transfer H_∞ nonlinear controller parameter optimization

Received: 02 December 2020

PACS:

TM724

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	Zhao Jingying
	Zhang Zhenyuan
	Zhang Ke

Cite this article:

Zhao Jingying,Zhang Zhenyuan,Zhang Ke. Control Design and Parameter Optimization on Secondary Side of Electric Vehicle Wireless Charging System Based on H_∞ Nonlinear Controller[J]. Transactions of China Electrotechnical Society, 2022, 37(3): 566-577.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201591 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I3/566

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