Practical calculation method for multi-infeed short circuit ratio influenced by characteristics of external characteristics of DC system

被引：0

作者：

Guo, Xiaojiang ^{[1
]}

Guo, Jianbo ^{[1
]}

Wang, Chengshan ^{[2
]}

机构：

[1] China Electric Power Research Institute, Haidian District, Beijing

[2] School of Electrical Engineering and Automation, Tianjin University, Nankai District, Tianjin

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2015年 / 35卷 / 09期

关键词：

DC system; Multi-infeed interaction factor (MIIF); Multi-infeed short circuit ratio (MISCR); Reactive power;

D O I：

10.13334/j.0258-8013.pcsee.2015.09.006

中图分类号：

学科分类号：

摘要：

According to the definitions of multi-infeed short circuit ratio (MISCR) and multi-infeed interaction factor (MIIF), with the influence of external characteristics of power system elements, the DC characteristics model which only contains converter bus voltage variables was established in this paper. Based on the model, the elements in power flow Jacobian matrix of AC/DC system influenced by DC system were deduced. The relationship between voltage disturbance and DC external characteristics was studied. Then, for the traditional MISCR calculation method, considering the characteristics of DC system, the practical calculation method for MISCR was proposed, which overcomes difficulties of the traditional method applying to the large scale complex power grid and considering the influence of power system elements. Research examples show that the external characteristic of DC system has significant effect on the MISCR results. © 2015 Chin. Soc. for Elec. Eng.

引用

页码：2143 / 2151

页数：8

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