Performance analysis of SRFT based D-STATCOM for power quality improvement in distribution system under different loading conditions

Abstract

Abstract Presently the term “Power Quality” is gaining more and more attention due to different kinds of non-linearities induced by various converters used in the industries. Power quality is all about assessing and maintaining optimal quality of power during various stages of the power system ranging from generation to distribution. This research intends to provide a better understanding to various researchers about the applications of the Distribution Static Compensator (D-STATCOM) in mitigating various power quality concerns typically focused on harmonics elimination and voltage profile improvement. D-STATCOM is designed and installed in the distribution network to maintain reactive power demand, harmonic mitigation, and power factor correction. A Synchronous Reference Frame Theory (SRFT) based control technique is adopted to extract reference current. The behavior of the system with and without D-STATCOM is analyzed in detail for various loads. As a result, this study presents various ideas, adjustments, and compensating methods for several loading conditions. Finally, it is found that the current THD has been considerably improved under various loading conditions.