BWO Strategy for Power Quality Improvement in HRES Grid-Connected DPFC System

ABSTRACT Hybrid renewable energy sources (HRES) integrated with the grid connection is tremendously increasing its importance in the current scenario to meet the huge demand for electrical power. This integration is further decreasing the usage of fossil fuel and reducing the problems related to the environment. HRES such as the photovoltaic (PV) system, wind turbine (WT), and the battery energy storage system (BESS) in grid-connected systems are causing power quality (PQ). To overcome such issues in the HRES system, black widow optimization (BWO) with distributed power flow controller (DPFC) is proposed. DPFC is one among the various custom power devices, which are effectively used to mitigate the PQ issues, such as voltage/current sag, swell, and total harmonic distortions. Fractional order PID controller is designed to drive DPFC whose control parameters are generated with BWO technique. The analysis is compared with various techniques like PI, P&O, GSA, ASO, RFA, EVORFA, and BWO and obtained the best results. The test system is simulated in MATLAB/Simulink software. GRAPHICAL ABSTRACT