The development of active power compensators and power conditioners lead to eminent solutions to improve power quality. Among these emerging solutions, the Series Active Filter is relatively immature compared to shunt and hybrid configurations. This paper presents a comprehensive review of the Series compensator history, configurations, control strategies, and related involvements in this field. It provides a perspective of Series active compensator's technology to researchers dealing with power quality issues. This paper tries to promote industrial application of series compensators for future Smart grids.