Design & Analysis of Autonomous Solar Photovoltaic Hybrid System using D STATCOM

This paper presents a control algorithm for isolated solar photo-voltaic (PV)-diesel-battery hybrid system with integrated D-STATCOM. The admittance-based control algorithm is used for load balancing, harmonics elimination, and reactive power compensation under three-phase four-wire linear and nonlinear lo ads. The PV array is controlled using a maximum power point tracking (MPPT) algorithm to obtain the maximum power under unpredictable operating conditions. The battery energy storage system (BESS) is incorporated with diesel engine generator set for the coordinated load management and power flow within the system. Further, the proposed system with the help of D-STATCOM improves the power quality problems and decreases the total harmonic distraction. A four-leg voltage-source converter with BESS also provides neutral current compensation. The performance of the proposed standalone hybrid system with integrated D-STATCOM is studied under different loading conditions developed MATLAB/Simulation of the system.