期刊名称：International Journal of Advances in Engineering and Management
电子版ISSN：2395-5252
出版年度：2021
卷号：3
期号：6
页码：2022-2024
DOI：10.35629/5252-030618371848
语种：English
出版社：IJAEM JOURNAL
摘要：An interline lively voltage restorer (IDVR) may be a new device for sag mitigation which is formed of several dynamic voltage restorers (DVRs) with a standard DC link, where each DVR is connected serial with a distribution feeder. During sag period, active powers are often transferred from a feeder to a different one and voltage sags with long durations are often mitigated. IDVR compensation capacity, however, depends greatly on the load power factor and a better load power factor causes lower performance of IDVR. to beat this limitation, a replacement idea is presented during this paper which allows to scale back the load power factor under sag condition, and thus, the compensation capacity is increased. The proposed IDVR employs two cascaded H-bridge multilevel converters to inject AC voltage with lower THD and eliminates necessity to low-frequency isolation transformers in one side. Power quality is the key issue to be addressed and IDVR suggests better solutions.
