Grid interconnection solutions and power quality enhancement for a battery-supported hybrid PV system

Authors : Batuhan Güzey, Helin Bozkurt, Ahmet Teke

Pages : 271-281

Doi:10.28948/ngumuh.1576914

View : 64 | Download : 40

Publication Date : 2025-01-15

Article Type : Research Paper

Abstract :The energy demand is increasing unprecedentedly day by day due to the rapid development of technology. Clean and sustainable energy sources are used more intensively to meet environmental demands. This paper aims to design a grid-connected hybrid system consisting of a 12.45 kW Photovoltaic (PV) system and a 10 kWh capacity battery energy storage system (BESS). In the design procedure, Perturb and Observe (P&O), Incremental Conductance (INC), Artificial Neural Network (ANN), and Hybrid Maximum Power Point Tracking (MPPT) algorithms are implemented and tested. The most efficient method is selected to yield the maximum power output from the PV module under a variety of environmental conditions. Since the capacity of PV and BESS are different, it is determined that Total Harmonic Distortion (THD) of injected current is high during night mode. To solve this issue and enhance power quality, a double-mode LCL filter is developed. When a single-mode LCL filter is used, the THD value is obtained as 4.8%. In the two-mode LCL filter application, this value has been reduced to 3.2%. The overall efficiency is measured as 97.5% under low irradiation conditions for the system with ANN-MPPT.
Keywords : FV sistem, Güç kalitesinin iyileştirilmesi, YSA, MGNİ, Enerji depolama