International Journal of Science, Engineering and TechnologyAuthors: Dilip Chauhan, Satyam Kumar Upadhyay, Sarvendra Kumar Singh
Abstract: This paper presents an analytical study on efficient power flow control in grid-connected photovoltaic and battery systems, emphasizing their capability to enhance power quality and ensure stable grid interaction. A comprehensive model is developed in MATLAB/Simulink, integrating PV generation with battery storage and shunt compensation to regulate voltage, mitigate harmonics and maintain optimal power exchange with the grid. The PV array is operated under variable irradiance conditions while the battery compensates for fluctuations through controlled charging and discharging. A robust maximum power point tracking (MPPT) algorithm ensures rapid convergence of the PV operating point enabling effective utilization of solar energy. The battery–converter interface is analyzed for voltage stability and current dynamics during abrupt load changes. Shunt inverters are investigated for reactive power support and harmonic suppression contributing to enhanced voltage regulation at the point of common coupling. Simulation results confirm that the proposed control framework achieves efficient power balancing among the PV array, battery and utility grid even under transient disturbances. Grid voltage and current waveforms remain well-synchronized and load-side power quality is preserved despite nonlinear demand. The study demonstrates that coordinated operation of PV and battery resources, supported by advanced control of interfacing converters provides a resilient and efficient solution for integrating renewable energy into low-voltage distribution networks. The findings offer practical insights for designing smart grid systems capable of sustaining reliable power delivery while maximizing renewable energy penetration.
