Research on Relay Protection of Active Distribution Network Based on Innovation Graph

被引：0
|
作者：
Guo, HuaiYu [1 ]
Yang, ZiHao [2 ]
Ge, YiHui [3 ]
Zhang, MingRui [4 ]
Wang, Ji [1 ]
Li, Dan [1 ]
Gao, Ying [1 ]
Yuan, JunWen [1 ]
机构：
[1] State Grid HeiLongJing Elect Power Co Ltd, State Grid HeiLongJiang Elect Power Res Inst, Harbin, Peoples R China
[2] Xi An Jiao Tong Univ, Sch Elect Engn, Xian, Peoples R China
[3] State Grid JiangSu Elect Power Co Ltd, State Grid BaoYing Cty Elect Power Supply Co, Yangzhou, Jiangsu, Peoples R China
[4] State Grid HeiLongJing Elect Power Co Ltd, State Grid Harbin Elect Power Supply Co, Harbin, Peoples R China
来源：
PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON NEW ENERGY AND ELECTRICAL TECHNOLOGY | 2023年 / 1017卷
关键词：
Relay protection; Distributed generation; Innovation graph; Predict ratio; Power flow;
D O I：
10.1007/978-981-99-0553-9_82
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The large scale integration of new energy leads to great changes in the characteristics of power flow and fault characteristics of traditional radial distribution network, which has a great impact on the correct action of relay protection devices. The influence of different types of short circuit faults on the protection device is analyzed when the distributed power is connected to the starting bus and the intermediate bus. A current protection scheme using the innovation graph to calculate the correct estimate ratio of lines is proposed. In this scheme, the innovation graph parameters are calculated by the current innovation before the fault and after the fault, and the fault is judged only by comparing the correct estimate ratio of each line in the region. Compared with the conventional method of current protection, the scheme has lower requirements for communication system and improves the complex coordination between contiguous lines. A simplified distribution network model is established in PSASP software to verify the effectiveness of the proposed protection scheme.
引用
收藏
页码：796 / 806
页数：11
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