Single Stage Reconfigurable Inverter Cum Converter Grid Linked PV-Battery System

In this thesis a new converter called reconfigurable Solar Converter (RSC) for PV- battery application. Particularly for utility scale PV-battery application is proposed. The basic concept of the converter is to use a single power conversion system to perform different operation modes for solar PV systems with energy storage. The proposed solution requires minimal complexity and modifications to the conventional three-phase solar PV converters for PV-battery systems. The new converter is to use a single-stage three phase grid-tie solar PV converter to perform both dc/ac and dc/dc operations. This converter solution is appealing for PV-battery application, because it minimizes the number of conversion stages, thereby improving efficiency and reducing cost, weight, and its volume. Keywords- Reconfigurable Converter, Energy Storage, Photovoltaic (PV), Solar. I. INTRODUCTION