Economic and Technical Indicators of Internal Loop Opening of 500kV/220kV Electromagnetic Loop Network of Regional Power Network

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Jia, Peng^1 ; Mao, Yubin^1 ; Liu, Yongmin^1 ; Huang, Jinghui^1 ; Liu, Junhui^1 ; Liu, Wanxun^1 ; Guo, Fang^1 ; Li, Tiantian^1 ; Shao, Hongbo^1

State Grid Henan Economic Research Institute, Zhengzhou

450000, China^1

关键词: Electromagnetic loop;    Internal loops;    Load density;    Open-loop scheme;    Regional power network;    Technical indicator;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/3/032117/pdf
DOI  :  10.1088/1755-1315/252/3/032117

来源: IOP

【 摘 要 】

With the strengthening of the regional power network at 500 kV and above level and the increase of load density, the contradiction between the electromagnetic loop network and the short-circuit current becomes more and more prominent, so it is necessary to open the internal electromagnetic loop network in due time. This paper puts forward the economic and technical indicators of the internal opening of the electromagnetic loop network, through the calculation of examples, the advantages and disadvantages of various internal open-loop schemes are evaluated, and the recommended schemes are obtained.