Observability analysis of AC-DC hybrid power system

被引：0
作者：
Liu, Chongru [1 ]
Zuo, Jiang [2 ]
Wu, Jia
Liu, Dongxing
机构：
[1] N China Elect Power Univ, Sch Elect & Elect Engn, Beijing, Peoples R China
[2] N China Elect Power Univ, Dept Elect Engn, Beijing, Peoples R China
来源：
IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010 | 2010年
基金：
国科技部“十一五”科技计划项目; 中国国家自然科学基金;
关键词：
state estimation; observability analysis; HVDC; alternating iterative; ALGORITHM;
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：
Based on the characteristics of AC-DC hybrid power system, a topological approach is proposed in this paper for the observability analysis of AC-DC power system state estimation to merging and extending observable islands. Firstly, two rules based on the solvable condition of power flow of DC system are presented to analyze the observability of DC system including multi-infeed and multi-terminal DC system. Secondly, the conception of the DC correlation coefficient of AC buses is proposed. Thirdly, the contribution of the AC interisland branches and DC interisland branches to the observability AC-DC systems is discussed in this paper. By using the idea of alternative iteration by analogy with the state estimation of AC-DC system, the procedures to merge the AC-DC systems measurement islands are presented in this paper. Numerical results show that the proposed AC-DC systems observability analysis method is valid and effective.
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页数：7
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