Dynamic tracking of low-frequency oscillations with improved prony method in wide-area measurement system

2005 ◽  
Author(s):  
Jinyu Xiao ◽  
Xiaorong Xie ◽  
Yingduo Han ◽  
Jingtao Wu
Keyword(s):  
Measurement System ◽  
Low Frequency ◽  
Area Measurement ◽  
Wide Area ◽  
Wide Area Measurement System ◽  
Prony Method ◽  
Low Frequency Oscillations ◽  
Dynamic Tracking

Identification the Low-Frequency Oscillation Stakeout of Power System by Wide-Area Measurement System

2011 ◽  
Vol 128-129 ◽  
pp. 594-601
Author(s):  
Yang Liu ◽  
Qian Huang ◽  
Dong Chen
Keyword(s):  
Power System ◽  
Measurement System ◽  
Rapid Development ◽  
Oscillation Mode ◽  
Low Frequency ◽  
Area Measurement ◽  
Wide Area ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
Wide Area Measurement System

With the rapid development of interconnected power grid, the phenomenon of power system low-frequency oscillation appears unavoidably. Then, the appearance of wide-area measurement system provided a supporting technology for better scout low-frequency oscillation system and better recognize the oscillation mode . In this paper, the existing oscillation mode identifying methods are analyzed from the viewpoint of calculation speed, criterion, calculation accuracy, etc. Mainly compared the applicability of two methods, Prony and ESPRIT . Based on the above research, a new idea of monitoring power system low frequency oscillation based on WAMS is put forward in this paper.

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