Design and Development of a Proficient Converter for Solar Photovoltaic Based Sustainable Power Generating System

Abstract

The demand for renewable energy resources is invigorated due to various issues primarily related to energy security, energy sustainability, and greenhouse gas emissions. The proper utilization of renewable energy resources has certain challenges due to the varying nature of meteorological parameters and atmospheric aerosols. Therefore, it is of utmost importance to extract the maximum power from the photovoltaic systems with the help of proficient converters. Here, a coupled inductor based highly efficient synchronous interleaved boost converter is designed and developed for the grid integrated photovoltaic system. The proposed converter contains an Insulated Gate Bipolar Transistor (IGBT) switch in place of the conventional diode to maintain zero leakage current, bared minimum switching losses, and improved conduction time thereby enhancing the overall efficiency and reliability of the system. In addition, the proposed system topology is simple to implement and is capable of controlling power at both the generation as well as the load sides. The results obtained are validated with the help of a laboratory prototype under practical scenarios like varying temperature and solar irradiance. Further, an intelligent technique based on modified particle swarm optimization is utilized to extract the maximum power from the photovoltaic system. Moreover, the power quality indices were monitored and analyzed at the point of common coupling and at the grid level which vets the effectiveness of the proposed topology.