An on-line voltage stability evaluation system for AD/DC hybrid power system

被引：0

作者：

Tang, Xiaojun ^{[1
]}

Cheng, Zhenlong ^{[2
]}

Zhang, Xin ^{[1
]}

Li, Zaihua ^{[1
]}

Li, Jing ^{[1
]}

Luo, Hongmei ^{[1
]}

Qiu, Liping ^{[1
]}

机构：

[1] China Electric Power Research Institute, Beijing 100192, Haidian District

[2] School of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071003, Hebei Province

来源：

Dianwang Jishu/Power System Technology | 2014年 / 38卷 / 05期

关键词：

AC/DC hybrid power system; On-line evaluation index; On-line evaluation system; Voltage stability;

D O I：

10.13335/j.1000-3673.pst.2014.05.008

中图分类号：

学科分类号：

摘要：

Based on lots of simulation on the voltage stability of existing and planned AC/DC hybrid power grids, a classification method of voltage instability is given; in allusion to the large-scale power flow transferring without the shock of short-circuit fault, an voltage class based on-line voltage stability evaluation index, in which the impacts of active and reactive power flows are taken into account, is put forward. Simulation results of power grids show that the proposed index not only can evaluate static voltage stability level under slow growth of load effectively, but also can evaluate transient voltage stability level under blocking failure of DC system effectively. On this basis, an on-line voltage stability evaluation system for AC/DC hybrid power grid is proposed, and according to the particularity of different faults different voltage stability differentiation methods are adopted, thus the scale of on-line computation is obviously downsized and the calculation is speeded up.

引用

页码：1175 / 1180

页数：5

共 24 条

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