Early Warning of Low Frequency Oscillation and Analysis of its Related Issues

2012 ◽  
Vol 433-440 ◽  
pp. 7465-7470
Author(s):  
Chao Dong ◽  
Di Chen Liu ◽  
Zhen Chuan Du ◽  
Qing Fen Liao ◽  
Lei Yun ◽  
...  
Keyword(s):  
Real Time ◽  
Early Warning ◽  
Low Frequency ◽  
Local Maximum ◽  
Weak Links ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
The Real ◽  
Time Dynamic ◽  
Interconnected Power System

This paper set up the model of power transmissive observational section and put forward the real-time tracking method of power angle curve in steady state which could be used to identify and focus on monitoring the weak links, then to take early warnings of low frequency oscillation. On the dynamic situation of system been disturbed, we extracted the real-time dynamic damping value of the observational section, calculated its fitting curve of local maximum points and took the slope of curve as the criteria, in order to achieve early warning of low frequency oscillation under multiple disturbances in the interconnected power system.

Analysis of the Principle and Suppressed Measures of Low Frequency Oscillation in Interconnected Power System

2012 ◽  
Vol 241-244 ◽  
pp. 676-681 ◽  
Author(s):  
Qiu Li Wu ◽  
Xi Cheng ◽  
Jian Cheng Tan
Keyword(s):  
Power System ◽  
Future Development ◽  
Low Frequency ◽  
Power System Stability ◽  
System Stability ◽  
Interconnected Systems ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
Interconnected Power System ◽  
The Future

In interconnected systems, the low frequency oscillation becomes an important factor that affects the power system stability and limits power transport. This paper analyses the principle of low frequency oscillation in power system and the measures on suppressed low frequency oscillation, at last discusses the future development.

scholarly journals Low-Frequency Oscillation in Power System

2020 ◽  
Vol 9 (3S2) ◽  
pp. 5-9
Keyword(s):  
Signal Processing ◽  
Power System ◽  
Low Frequency ◽  
Measurement Unit ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
Interconnected Power System ◽  
Oscillation Detection ◽  
Processing Techniques ◽  
Signal Processing Techniques

Low-frequency oscillation can collapse the stability of the power system, which is considered to be one of the most significant challenges to a power system engineer. In earlier decades modal analysis was carried out for identifying lowfrequency oscillation modes, which have various drawbacks. In the present era, with the application of the Phasor measurement unit & various signal processing techniques, identification of lowfrequency oscillation is being carried out with accuracy to an extent. This paper provides a survey of recent research and development in the field of identification of low-frequency oscillation by different signal processing techniques. It is expected that this literature survey will provide researchers with some future direction in finding relevant references and developing suitable techniques for low-frequency oscillation detection in the interconnected power system.

scholarly journals A New Method for Visual Real-Time Monitoring of Low Frequency Oscillation

2015 ◽  
Vol 06 (04) ◽  
pp. 59-66 ◽  
Author(s):  
Bo-Jian Wen ◽  
Shi-Ming Li ◽  
Chong-Wen Zhou ◽  
Jun Luo ◽  
Fang-Zong Wang
Keyword(s):  
Real Time ◽  
Low Frequency ◽  
New Method ◽  
Real Time Monitoring ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation
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