System-response-based Eigenvalue estimation for on-line assessment of power system stability

被引：0
|
作者：
Hiraiwa, H [1 ]
Saitoh, H [1 ]
Tsukada, E [1 ]
Minazawa, K [1 ]
Toyoda, J [1 ]
机构：
[1] Tohoku Univ, Grad Sch Elect Engn, Sendai, Miyagi 980, Japan
来源：
PROCEEDINGS OF THE 2004 IEEE INTERNATIONAL CONFERENCE ON ELECTRIC UTILITY DEREGULATION, RESTRUCTURING AND POWER TECHNOLOGIES, VOLS 1 AND 2 | 2004年
关键词：
Eigenvalue; global positioning system; modal analysis; synchronized measurement; system identification;
D O I：
10.1109/DRPT.2004.1338523
中图分类号：
F [经济];
学科分类号：
02 ;
摘要：
This paper proposes a new method for modal analysis of large power systems that is based on synchronously measured system responses. The method can identify the eigenvalues corresponding to weakly damped electromechanical modes by analyzing the covariance matrix among rotor angles and speeds of generators. By the method, a power system is identified as a multi-input multi-output linear system, so that the characteristics of several modes can be analyzed simultaneously. In addition, the method to select a small number of generators for estimating slow oscillatory modes is discussed, and which is based on the application of coherencies of generators. The effectiveness of the new modal analysis is confirmed through the simulation studies of the IEEJ East10 machine model.
引用
收藏
页码：366 / 371
页数：6
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