Multi-Objective Optimization of LCC Resonant Circuit with High Power Factor

Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (11): 94-100.

• Power & Electrical Engineering • Previous Articles Next Articles

Multi-Objective Optimization of LCC Resonant Circuit with High Power Factor

Zhang Zhi-guo¹Xie Yun-xiang¹Yuan Zhao-mei²

1. School of Electric Power,South China University of Technology,Guangzhou 510640,Guangdong,China; 2. Fujian Longking Co.,Ltd.,Longyan 364000,Fujian,China

Received:2011-08-05 Revised:2011-12-14 Online:2012-11-25 Published:2012-10-01
Contact: 张治国(1977-) ，男，博士生，主要从事高频谐振变换器建模与控制研究． E-mail:zhang1569@126.com
About author:张治国(1977-) ，男，博士生，主要从事高频谐振变换器建模与控制研究．
Supported by:
国家火炬计划项目( 2007GH060026)

Abstract

Abstract:

In order to improve the input /output performance of the series-parallel LCC resonant converter with capacitive output filter,first,a steady-state mathematical model of the LCC resonant circuit is established by using the dynamic phasor based on the Fourier series,and the corresponding equivalent circuit is obtained. Then,the mathematical expressions to describe the input /output performance are deduced based on the equivalent circuit. Finally,a Pareto-based multi-objective genetic algorithm is employed to optimize the input /output performance. By adopting the fine-grained fitness assignment strategy with density estimation and by minimizing the objective functions,the algorithm helps to achieve massive and well-distributed optimal solutions for circuit design. Simulated and experimental results indicate that the proposed optimization method is correct,

Key words: series-parallel resonant converter, dynamic phasor model, equivalent circuit, genetic algorithm, multi-objective optimization

Zhang Zhi-guo Xie Yun-xiang Yuan Zhao-mei. Multi-Objective Optimization of LCC Resonant Circuit with High Power Factor[J]. Journal of South China University of Technology(Natural Science Edition), 2012, 40(11): 94-100.

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Multi-Objective Optimization of LCC Resonant Circuit with High Power Factor

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