基于互质因子分解的感应电能传输系统双自由度<em>H</em><sub>∞ </sub>控制

doi:10.19595/j.cnki.1000-6753.tces.171234

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Abstract

In inductive power transfer (IPT) systems, mutual-inductance perturbation and load variation seriously affect system output performance and stability requirements. The generalized state-space averaging model of SP-IPT system is first introduced. The open-loop characteristics and output performance under parameter disturbances are analyzed afterwards. Then the perturbation model of SP-IPT system that contains right-half-plane zeroes is described by coprime factorization. The input/output variables used in two-degree-of-freedom (2DOF) H_∞ robust control are also selected and defined based on the perturbation model, and further the state-space realization of generalized plant is deduced. Finally, the simulation and experiment are carried out based on the 2DOF H_∞ robust controller. The results show that via the control action of 2DOF H_∞ robust controller, although the dynamic response performance of closed-loop perturbation system may deviate from the expected target, but the influence of mutual-inductance and load perturbations on the steady tracking performance for preset reference input can be effectively inhibited, which satisfies the system robust stability requirements.

Key words： Inductive power transfer mutual-inductance perturbation coprime factorization robust control two-degree-of-freedom

Received: 25 August 2017 Published: 30 October 2018

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TM724

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	Li Yanling
	Du Hao
	Yang Mingkai
	He Zhengyou

Cite this article:

Li Yanling,Du Hao,Yang Mingkai等. Two-Degree-of-Freedom H_∞ Control for Inductive Power Transfer System Based on Coprime Factorization[J]. Transactions of China Electrotechnical Society, 2018, 33(20): 4746-4755.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.171234 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I20/4746

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