Power Quality Concerns with Integration of RESs into the Smart Power Grid and Associated Mitigation Techniques

Power distribution systems are advancing day today with the integration of renewable energy vindicated by growing energy demands and the sake of the global environment. But, the transformation of traditional grids into the smarter one has affected the power quality (PQ) and has given rise to new power quality concerns. The main cause, of these new power quality concerns, is the integration of renewable energy sources (RESs). Analysis of these power quality concerns is essential for predicting the stochastic effects on the operation of the modern power system and evaluating the appropriate solution. This paper presents an overview of power quality concerns arose as a result of an increase in grid integrated renewable energy systems and a mini review on state of the art solutions, in the literature, to alleviate those concerns. Besides, the opportunities for future research on mitigation techniques are also highlighted.