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Design of LCL Filter Using Hybrid Intelligent Optimization for Photovoltaic System

  • Jae Hoon Cho
  • Dong-Hwa Kim
  • Mária Virčíková
  • Peter Sinčák
Part of the Communications in Computer and Information Science book series (CCIS, volume 151)

Abstract

This paper proposes new design method of LCL filter parameters by using hybrid intelligent optimization. Usually, the voltage-source inverters (VSI) have been used for control of both link voltage and power factor in the grid connected topologies. But, since VSI can cause high-order harmonics by high switching frequency, it is important to choose the filter parameters to achieve good filtering effect. Compared with traditional L and LC filter, LCL filter is known as an effective method on reducing harmonic distortion at the switching frequency of VSI. However, design of the LCL filter is complex, and the selection of the initial values of the inductors is difficult at the start of the design process. This paper proposes an approach for designing LCL filter parameters by hybrid optimization method with both genetic algorithm and clonal selection. Simulation results are provided to prove that the proposed method is more effective and simple than conventional methods.

Keywords

LCL filter voltage-source inverters genetic algorithm clonal selection 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Jae Hoon Cho
    • 1
  • Dong-Hwa Kim
    • 2
  • Mária Virčíková
    • 3
  • Peter Sinčák
    • 3
  1. 1.Chungbuk National UniversityCheongju ChungbukKorea
  2. 2.Hanbat National UniversityDaejeonKorea
  3. 3.Dept. of Cybernetics and Artificial IntelligenceFEI TU of KošiceSlovak Republic

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