Amplitude and phase, quickly absorb or emit the required reactive power and harmonic current, and realize the purpose of fast dynamic adjustment of reactive power and harmonic compensation. Not only the reactive current of the load can be tracked and compensated, but also the harmonic current can be tracked and compensated. Enhanced static var generators (ASVGs) are high-performance, compact, flexible, modular, and cost-effective to provide immediate and efficient responses to power quality problems in high and low voltage power systems. Yo amelyore bon jan kalite pouvwa, pwolonje lavi ekipman ak diminye pèt enèji.