Voltage stability online evaluation system based on WAMS and EMS

被引：0
|
作者：
Liu, Daowei [1 ]
Song, Dunwen [1 ]
Wang, Hongyin [2 ]
Zhang, Yiming [2 ]
Sun, Jianhua [2 ]
Chen, Jun [2 ]
Xiong, Haoqing [2 ]
Wei, Shiquan [1 ]
Xiong, Xuanwen [1 ]
Yang, Xuetao [1 ]
Zhang, Haishun [1 ]
机构：
[1] China Electric Power Research Institute, Haidian District, Beijing 100192, China
[2] State Grid Henan Electric Power Company, Zhengzhou 450052, Henan Province, China
来源：
Dianwang Jishu/Power System Technology | 2014年 / 38卷 / 07期
关键词：
Electric network parameters - Electric power system measurement - Power quality - System stability;
D O I：
10.13335/j.1000-3673.pst.2014.07.033
中图分类号：
学科分类号：
摘要：
The framework structure, function modulus and engineering applications of online voltage stability assessment system based on WAMS and EMS are presented. According to the overall information including network structure, parameters and static measurement information of EMS, Thevenin equivalent parameters of each node based on electric network model are calculated. With the equivalent parameters as initial value, trajectory information of each PMU installed in the load node is used to track and identify the Thevenin equivalent parameters, and to calculate the impedance modulus index. Area type indicators are constructed to facilitate the quantitative assessment of transient voltage stability acceptability, and then the online static or transient voltage stability assessment on WAMS can be realized. The system makes full use of the advantages of speed, accuracy, synchronization of WAMS and the comprehensive information of EMS. The application of this system in Henan electric power system reflects its good engineering use value.
引用
收藏
页码：1934 / 1938
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