ANALYSIS AND SIMULATION OF PHOTOVOLTAIC SYSTEMS INCORPORATING BATTERY ENERGY STORAGE Oluwaseun Akeyo College of Engineering at the University of Kentucky

ANALYSIS AND SIMULATION OF PHOTOVOLTAIC SYSTEMS INCORPORATING BATTERY ENERGY STORAGE Oluwaseun Akeyo College of Engineering at the University of Kentucky

A thesis submitted in partial ful llment of the requirements for the degree of Master of Science in Electrical Engineering in the College of Engineering at the University of Kentucky By Oluwaseun Akeyo Lexington, Kentucky

 ABSTRACT OF THESIS ANALYSIS AND SIMULATION OF PHOTOVOLTAIC SYSTEMS INCORPORATING BATTERY ENERGY STORAGE

Solar energy is an abundant renewable source, which is expected to play an increasing role in the grid’s future infrastructure for distributed generation. The research described in the thesis focuses on the analysis of integrating multi-megawatt photovoltaics systems with battery energy storage into the existing grid and on the theory supporting the electrical operation of components and systems. The PV system is divided into several sections, each having its own DC-DC converter for maximum power point tracking and a two-level grid connected inverter with different control strategies. The functions of the battery are explored by connecting it to the system in order to prevent possible voltage fluctuations and as a buffer storage in order to eliminate the power mismatch between PV array generation and load demand. Computer models of the system are developed and implemented using the P SCADTM/EMT DCTM software. KEYWORDS: photovoltaics, battery, energy storage, inverter, solar pump, IEEE 14 bus.