Conversor estático híbrido para sistemas de geração solar fotovoltaica com armazenamento de energia em banco de baterias

Abstract

This master’s thesis proposes a new hybrid converter that combines photovoltaic solar energy processing and alternating current load power supply with battery storage. The proposed topology employs fewer semiconductor switches when compared to existing conventional topologies, resulting in a compact converter. The switching states, as well as the converter design, are presented in detail. In addition, a modulation strategy is presented for the proper operation of the converter. Additionally, a control system is designed to ensure dynamically decoupled operation between the three converter ports. This dissertation addresses the power supply of loads isolated from the grid, but the system can be easily extended to grid-connected use. Finally, simulation and experimental results obtained from a 500 W prototype are presented to validate and verify the performance of the proposed converter.

Keywords: Photovoltaic systems, hybrid converters, battery bank.