Application of fuzzy wavelet transform to smooth wind/PV hybrid power system output with battery energy storage system

Abstract

The battery energy storage system (BESS) is the current typical means of smoothing intermittent wind or solar power generation. This paper presents the results of a wind/PV/BESS hybrid power system simulation analysis undertaken to improve the smoothing performance of wind and PhotoVoltaic (PV) power generation. A power smoothing control method is proposed based on fuzzy logic and wavelet transform for reducing output power fluctuations of wind/PV/BESS hybrid power generation systems. The effectiveness of the proposed control strategy was verified using MATLAB/SIMULINK software. © 2011 Published by Elsevier Ltd.