Designing battery management system for photovoltaic power generation plants

Photovoltaic energy systems are systems that convert solar energy to electrical energy. Being renewable and less harmful to the environment is the reason solar energy is an alternative for fossil fuel energy. Energy storage systems can be used for better use of photovoltaic energy. Batteries are usually utilized for storing energy. Battery management systems provide monitoring parameters like state of charge,voltage and temperature etc. In this study, a photovoltaic system and a lead acid battery is modelled. A battery management system is designed for the system modelled in Simulink. Open circuit voltage and least squares method are combined together for designing the battery management systems and relative error is also calculated to test the reliability of the system. Keywords: Battery, photovoltaic systems, battery management