Closed-Loop Identification of Power System Based on Ambient Data

被引：1
|
作者：
Wu, Chao [2 ]
Lu, Chao [1 ]
Han, Yingduo [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
[2] Shenzhen Univ, Coll Mechatron & Control Engn, Shenzhen 518060, Peoples R China
来源：
MATHEMATICAL PROBLEMS IN ENGINEERING | 2012年 / 2012卷
基金：
中国国家自然科学基金;
关键词：
ELECTROMECHANICAL MODES; MODAL-ANALYSIS; PERFORMANCE;
D O I：
10.1155/2012/632897
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Small fluctuations caused by random changes of loads exist continuously in power grids, which are called ambient signals. Using time-synchronized phasor measurements, the closed-loop identification of power system based on ambient data is discussed, which can reflect accurate operating conditions currently and provide critical information for system analyzing and controller designing. The closed-loop identification of a power system with multiple disturbances is theoretically studied, including the closed-loop identifiability, the consistency properties, and the convergence properties. The requirements for realizing the closed-loop identification are summarized, and the theoretical research results are validated by simulation examples.
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页数：16
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