标题：Impact on Power Quality of LVDC Distribution Network Under Different Faults
作者：Lv, Haixia; Tian, Lijun; Wang, Zhiguo
作者机构：[Lv, Haixia; Tian, Lijun] Shandong Univ, Sch Elect Engn, 17923 Jingshi Rd, Jinan, Shandong, Peoples R China.; [Wang, Zhiguo] State Grid Shandong Yun 更多
会议名称：China International Conference on Electricity Distribution (CICED)
会议日期：SEP 17-19, 2018
来源：2018 CHINA INTERNATIONAL CONFERENCE ON ELECTRICITY DISTRIBUTION (CICED)
关键词：Bus voltage; DC distribution network; Faults; Power quality
摘要：With the advantages of low loss, low cost, high efficiency and high reliability, DC distribution network has become the new trend of the future grid development. There are some power quality problems distinct from AC system in DC distribution network. Through modeling and simulations, the impact on bus voltage power quality of LVDC distribution network is studied under different faults occurred in DC and AC side. Research suggests that faults in DC and AC side will cause voltage fluctuations, voltage sags and harmonics of DC bus, and the difference of the impact on DC bus power quality is obvious with different fault locations, fault impedance and fault types.