抄録
This paper proposes a new approach for designing LCL filter parameters for renewable sources by using intelligent optimization method. Generally, the renewable sources connected power converter system can cause high-order harmonics with the fundamental frequency around the switching frequency. On the other hand, LCL filter is known as an effective method on reducing harmonic distortion at the switching frequency. However, design of LCL filter requires effective ways to achieve good filtering effect because it is not simple to choose the proper LCL filter parameter. This paper presents an design method by using advanced bacterial foraging optimization and a new object function. In order to verify the performance of the proposed method, a photovoltaic system modeled by MATLAB/SimPowerSystems is used in this simulation. The proposed method showed more effective results than conventional methods.
