基于NSGA-Ⅱ算法的ECPT系统PID参数寻优及输出稳压控制

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Abstract

Several issues including output voltage distortion and system instability might be caused by the high-order resonant networks,nonlinearity,and parameter-sensitivity in electrical-field coupled power transfer(ECPT) systems.An optimal controller design method is proposed in order to overcome these problems.A generalized state space averaging(GSSA) model is built to approximate the ECPT system firstly.Basing on this model,an evolutionary optimization framework is utilized to search for the optimal controllers automatically with the evolutionary multi-objective algorithm NSGA-II.As the results,the difficulty of designing a proportion-integration-differentiation(PID) controller of a high-order systems is solved effectively.And the system performance,indicated by rise time,steady state error,and robustness of the system,are optimized.Meanwhile,the system overshoot is limited within an acceptable range and the stability of the system is improved.At last,the simulation and experiments verify the accuracy of the GSSA model and the validity of the utilized NSGA-II optimization method.

Key words： Wireless power transfer electrical-field coupled parameter optimization generalized state space averaging (GSSA) model PID control

Received: 10 June 2015 Published: 02 November 2016

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TM724

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	Articles by authors
	Su Yugang
	Chen Lingzhi
	Tang Chunsen
	Ma Junhao
	Hu Aiguo

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Su Yugang,Chen Lingzhi,Tang Chunsen等. Evolutionary Multi-Objective Optimization of PID Parameters for Output Voltage Regulation in ECPT System Based on NSGA-Ⅱ[J]. Transactions of China Electrotechnical Society, 2016, 31(19): 106-114.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I19/106

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