Control Strategies for Mitigating Power Quality Issues in Renewable Energy Coordinated Microgrid—A Comprehensive Review

Renewable energy systems are becoming increasingly popular for electricity generation because they are clean and can meet local electricity needs. They reduce network congestion and also lighten the load on conventional based power plants. Power quality issues have become increasingly important in grid-connected renewable energy systems like solar PV and wind energy-based systems over the past few decades, particularly due to their sporadic nature and the widespread usage of nonlinear electronics loads. With the advent of power electronic converters with powerful control technology, renewable energy systems can be interconnected to a large extent with the power grid or used as isolation systems in remote areas. Using more efficient control strategies can not only improve the performance of these systems, but also improve the quality of energy generated, distributed, and used at the load side of power system. Hence, this paper reviews various control strategies adopted for alleviation of power quality issues of solar PV and wind energy coordinated microgrid system, and further recommendations are provided to solve power quality issues as future research.