Analysis of Impact of DG on LVDC Distribution Network Protection

摘要：

　　Compared with traditional AC distribution network, DC distribution network, which stands for future distribution network is suitable for distribution generation (DG) to multiple access. DG access changes the structure of low-voltage DC (LVDC) distribution network, affecting the reliability of relay protection. To eliminate the influence, a protection strategy which is based on Hall DC transformer is proposed. First, study about the effect of DG access on relay protection when DG is connected is discussed in detail for different capacities and locations. Then analysis shows that the integration of DG will cause rejection or malfunction, which may threaten the reliability of LVDC distribution system. Finally, the analysis shows that the optimization strategy based on Hall DC transformer can eliminate the effect by changing operation conditions.

关键词： DC distribution network relay protection distribution generation Hall DC transformer

作者: XU Kuo ZHU Yong-qiang XIA Rui-hua

作者单位: School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China

会议类型: 国际会议

会议名称: 2016中国国际供电会议(CICED2016)

会议地点: 西安

会议语种:英文

页码: 1-6

在线出版日期: 2016-09-01（万方平台首次上网日期，不代表论文的发表时间）