scholarly journals Assessing Power System Stability Following Load Changes and Considering Uncertainty

2018 ◽  
Vol 8 (2) ◽  
pp. 2758-2763 ◽  
Author(s):  
D. V. Ngo ◽  
K. V. Pham ◽  
D. D. Le ◽  
K. H. Le ◽  
K. V. Huynh
Keyword(s):  
Power Systems ◽  
Power System ◽  
Large Scale ◽  
Voltage Drop ◽  
Load Capacity ◽  
Power System Stability ◽  
System Stability ◽  
Stability Assessment ◽  
Uncertainty Factors ◽  
Node Capacity

An increase in load capacity during the operation of a power system usually causes voltage drop and leads to system instability, so it is necessary to monitor the effect of load changes. This article presents a method of assessing the power system stability according to the load node capacity considering uncertainty factors in the system. The proposed approach can be applied to large-scale power systems for voltage stability assessment in real-time.

The Research of Power System Stability Problems Caused by Integration of Large-Scale Wind Power

2013 ◽  
Vol 391 ◽  
pp. 291-294
Author(s):  
Xiao Ning Xu ◽  
Xue Song Zhou
Keyword(s):  
Power Systems ◽  
Power System ◽  
Wind Power ◽  
Large Scale ◽  
Voltage Stability ◽  
Wind Farms ◽  
Power System Stability ◽  
System Stability ◽  
Dynamic Voltage ◽  
Dynamic Voltage Stability

In recent years, wind power in China developed rappidly. More and more problems occurred with the integration of large-scale wind power. Arounding the issues of power system stability which are resulted from the integration of wind power and ite relevant technology, this paper mainly introduced the voltage stability from the angle of the definition and the classification, and analyzed power systems which contains wind farms from the angle of the research contents and methods of static and dynamic voltage stability, especially emphasizing the necessity of the bifurcation theory used in power system contains wind power.

Decentralized H ∞ control for damping power system oscillations

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Guo-Jie Li ◽  
Tek Lie
Keyword(s):  
Power Systems ◽  
Power System ◽  
Large Scale ◽  
Digital Simulation ◽  
Design Procedure ◽  
Disturbance Attenuation ◽  
System Stability ◽  
Frequency Noise ◽  
Stability Robustness ◽  
Norm Bound

AbstractInter-area oscillations are serious problems to large-scale power systems. A decentralized H ∞ generator excitation controller of a power system is proposed to damp the inter-area oscillations and to enhance power system stability. The design procedure for a linear composite system is presented in terms of positive semi-definite solutions to modified algebraic inequalities. The resulting controller guarantees closed-loop stability, robustness and an H ∞-norm bound on disturbance attenuation even under uncertainties such as high frequency noise. The control is decentralized in the sense that the control of each generator depends on local information only. The effectiveness of the H ∞ controller is demonstrated through digital simulation studies on a two-machine power system.

Modified Hopf bifurcation index for power system stability assessment

2005 ◽  
Vol 152 (6) ◽  
pp. 906 ◽  
Author(s):  
M.A. Tomim ◽  
B.I.L. Lopes ◽  
R.C. Leme ◽  
R. Jovita ◽  
A.C. Zambroni de Souza ◽  
...  
Keyword(s):  
Hopf Bifurcation ◽  
Power System ◽  
Power System Stability ◽  
System Stability ◽  
Stability Assessment
Sign in / Sign up

Export Citation Format

Share Document