Evaluation of Short Circuit Currents in Multi-Terminal HVDC Systems

被引：0

作者：

Wasserrab, Andreas ^{[1
]}

Balzer, Gerd ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Elect Power & Energy, Darmstadt, Germany

来源：

PROCEEDINGS OF THE 2012 INTERNATIONAL CONFERENCE AND EXPOSITION ON ELECTRICAL AND POWER ENGINEERING (EPE 2012) | 2012年

关键词：

DC short circuit; HVDC; Multi-Terminal System; VSC HVDC; Transmission lines;

D O I：

暂无

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：

This paper deals with the analysis of short circuit currents in radial HVDC networks. After the occurrence of a short circuit in a HVDC system different sources contribute to the resulting short circuit current. In this paper the various short circuit current sources with their corresponding fault currents are analyzed. The determination of short circuit currents is done by simulation in PSCAD (R). The analysis covers both line-to-line and line-to-earth faults at different fault locations. The dependency of the fault location on the amplitude is shown. The results are verified by an analytical approach to calculate the single short circuit currents of the different sources. A short circuit in a DC system causes transients with high frequencies. Therefore special attention is given to the frequency dependence of transmission lines and their effect on the short circuit current. The paper concludes with general comments on the adaption of the results to meshed DC grids and a perspective to transmission grids in the future.

引用

页码：213 / 218

页数：6