Smart infrastructure techniques for renewable energy systems in grid connected applications

Abstract

newline In recent times, the electrical energy demanded by residential, industrial, and commercial segments has grown and consequently contributed to encouraging an increase in energy production based on renewable energy sources (RES). Therefore, the enhancement and development of vitality age plants have turned into a worldwide pattern. Considering the worldwide interest in sustainable development and decreasing ecological effects, the use of RES emerges since they can lessen the effects caused by non-sustainable power sources dependent on petroleum products, for example, coal, oil, or flammable gas. Generally, one or more power conversion stages are necessary to create a grid-connected PV power system. In a two-stage PV power system, DC/DC conversion is on one power stage and DC/AC conversion is on the other. In this system, MPPT control is performed by the DC/DC converter, while the PV system is connected to the grid by the DC/AC converter. Moreover, sending energy to the service grid and getting the utmost power from the PV array have to be attained in PV systems. For this reason, an incremental conductance algorithm for attaining maximum power point tracking (MPPT) is employed. A DC-DC boost converter and a grid connected inverter are the two stages of the PV system to be analysed in this work. Energy Storage Systems (ESS) provide various benefits to RE sources, and a battery energy storage system is linked to the proposed PV power system to maximise PV power utilization. The core contribution of the proposed method is to design a solar PV-based grid connected system with an energy management controller and energy storage to supply continuous power to critical loads under different operating conditions. The developed energy management controller is able to supply critical loads under different operating conditions of the solar PV system.