scholarly journals Dynamic Model Reduction for Large-Scale Power Systems Using Wide-Area Measurements

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 97863-97872
Author(s):  
Ning Tong ◽  
Zhihao Jiang ◽  
Lin Zhu ◽  
Yilu Liu
Keyword(s):  
Power Systems ◽  
Model Reduction ◽  
Dynamic Model ◽  
Large Scale ◽  
Wide Area

scholarly journals Wide-area damping control using signal restoration under communication uncertainties

2020 ◽  
Vol 71 (3) ◽  
pp. 165-174
Author(s):  
Issarachai Ngamroo
Keyword(s):  
Power Systems ◽  
Large Scale ◽  
Test System ◽  
Wide Area ◽  
Control Effect ◽  
Signal Restoration ◽  
Damping Control ◽  
Input And Output ◽  
Oscillation Damping ◽  
Wide Area Damping Controller

AbstractIn large-scale power systems, the wide-area damping controller (WADC) using remote input signals is an effective device that can be applied to deal with poor inter-area oscillation damping. However, its control effect will be degraded by communication uncertainties such as variable time delays in both input and output sides of WADC, partial and complete communication failures. This paper focuses on a new WADC design by regarding communication uncertainties. Such uncertainties are mathematically formulated and analyzed in order to signify its impact on the oscillatory stability. The signal restoration of input and output pairs of WADC is proposed to alleviate an adverse effect of communication uncertainties. Simulation study in an IEEE 50-machine 145-bus test system elucidates that the proposed WADC is superior to that of the conventional WADC without considering communication uncertainties in both performance and robustness.

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