Novel Control of Standalone Hybrid Wind-PV-Battery System for Improving Power Quality

Standalone hybrid power generation systems, particularly those using renewable energy sources, are gaining popularity and spreading across the globe. Solar and wind power are two of the main renewable energy sources used to generate electricity. Solar energy is typically converted into electricity using photovoltaic (PV) cells, and similarly, wind energy conversion systems based on PMSG are more common for medium power applications. Hence, PV and wind based hybrid standalone system can provide reliable power to loads with the help of battery storage system. The integration of these two generations along with battery can provide flexible and reliable power to consumers during all times. To maintain power quality at the AC load bus, a hybrid PV, wind, and battery-based microgrid is therefore taken into consideration and installed. Maximum power point devices are integrated into the system to make the most use of the energy sources. A bidirectional DC to DC converter connects the battery bank to the system in order to maintain energy management. By properly charging and discharging the battery, the bidirectional DC to DC converter's control mechanism regulates the voltage of the dc-link. Between dc-link and AC loads is an interface for a three-phase inverter. Regardless of variations in load and sources, the control of the inverter is built to maintain constant RMS voltage at the AC bus. In this research, the outcomes under several case studies are presented using the MATLAB platform.