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Smooth and Non-smooth Bifurcations in Multi-structure Multi-operating-mode Systems: Case Study of a Power Conversion System with Two Energy Sources

Xiaoling Xiong1,2Chi K.Tse2Xinbo Ruan1

1. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics2. Department of Electronic and Information Engineering, The Hong Kong Polytechnic University

摘要:Renewable power generation systems are gaining popularity and have developed quickly in recent years. However, due to the intermittent features of the renewable energy sources, conversion systems involving more than one energy sources are usually designed with multiple structures and multiple operating modes. The dynamic behavior is thus quite complex, and the design for stable operation of such systems requires consideration of the stability conditions for all possible structures and operation modes. This paper describes such conversion systems, and uses a standalone photovoltaic-battery hybrid power system as an example for illustrating the possible complex behavior. We reveal smooth and non-smooth bifurcation phenomena in this system. Under certain conditions, when the system switches its operation mode, a non-smooth bifurcation has been observed and verified with full-circuit simulations. Moreover, a detailed analysis based on an averaged model is performed to identify the two types of bifurcation.
会议名称:

2012 Fifth International Workshop on Chaos-Fractals Theories and Applications

会议时间:

2012-10-18

会议地点:

中国辽宁大连

  • 专辑:

    工程科技Ⅱ辑

  • 专题:

    电力工业

  • 分类号:

    TM61

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