Attenuation of Zero Sequence Voltage Using a Conventional Three-Wire Dynamic Voltage Restorer

Voltage sags/swells and harmonics are recurring problems in electric energy distribution systems. In order to solve these issues, several dynamic voltage restorer (DVR) topologies, such as the conventional three-wire DVR, have been proposed literature. Despite its capability of mitigating disturbances, many researchers established that DVR cannot compensate for zero sequence disturbances. this paper, an in-depth study three-phase is presented, which shows topology can also be used attenuate components without increasing control complexity. The necessary conditions occur discussed details a brief comparison between other topologies disturbances made. Experimental results included validate theoretical study.