Paper Title
Performance Analysis of Single Stage Grid Connected Solar PV and BES Under Diverse Operating Condtions

Abstract
The use of solar power systems connected to the grid is increasing rapidly. To handle power issues during faults, these systems must stayconnected and support the grid by supplying reactive power. This paper presents a solar PV system with battery backup that works well during both normal and faulty grid conditions, including voltage drops (LVRT). A simple and effective control method isused to keep the system stable and within safe limits. The battery helps manage voltage using a two-way converter. A combination of Incremental Conductance and ParticleSwarm Optimization methods is used for better power tracking. The system is tested and validated through MATLAB/Simulink simulations and real-time experiments. Keywords - Low Voltage Ride Through (LVRT), Solar PV, Battery Energy Storage (BES), Distributed Generation System (DGS), MPPT, Incremental Conductance (INC), Particle Swarm Optimization (PSO), Grid-Connected system, Positive sequence Current, Reactive Power.