Continuation method applied to a power system analysis of voltage stability

Author(s):  
H. Aloui ◽  
F. Bacha ◽  
M. Gasmi
2018 ◽  
Vol 7 (2.24) ◽  
pp. 381
Author(s):  
P K.Dhal ◽  
K Ramash Kumar

The major role of power system is voltage stability. It is required to plan properly and smooth operation and control. It presents a new approach of voltage stability improvement in IEEE 57 bus system using hybrid algorithm. The hybrid algorithm (PSO-MVO) is combination of PSO which is used for exploitation and MVO used for exploration. It is used in an uncertain environment. The FACTS device as STATCOM is connected in IEEE 57 test system to check for event of voltage stability improvement through power system analysis tool (PSAT) software. Once the ability of system goes through sudden loading, its stability gets affected. It desires compensation to boost voltage from disturbances. The varied operative condition while not used STATCOM in the system, used with STATCOM tuned by PSO-MVO algorithm are measured judge the performance of the projected system. The hybrid PSO-MVO technique is implemented in this paper to solve the proposed problem. The simulation results are obtained by PSAT software for 57 IEEE bus systems. The hybrid algorithm validates its effectiveness compare to individual PSO and MVO algorithm.     


2013 ◽  
Vol 339 ◽  
pp. 545-549
Author(s):  
Xue Song Zhou ◽  
Huan Liang ◽  
You Jie Ma

Power system voltage stability is one of research hotpots in the field of electric power engineering. Firstly, the application of bifurcation theory in power system analysis is introduced. Secondly, static index which is used frequently in power system analysis is given and the characteristics of every index are clarified in detail. Last, it introduces the analytical methods of dynamic voltage and makes prospect about the voltage stability analysis.


2015 ◽  
Vol 20 (1) ◽  
Author(s):  
Sindy Lorena Ramirez Perdomo ◽  
Carlos Arturo Lozano Moncada

<p>A power system is subject to disturbances that may lead to voltage stability problems, which eventually may lead to black-outs. On-line phasor measurements may allow anticipating situations leading to voltage instabilities; these on-line measurements can be accomplished by using Phasor Measurement Units – PMU. However, for a power system is not economical or necessary to install PMU at each bus; in order to avoid this situation, it is required to develop a strategy for PMU placement that is useful and convenient, with a limited number of available PMU. This paper presents a review and comparison of some methods for PMU placement in power systems; also, a classification according to the type of observability is done and the application of the method is considered. Finally, a method for monitoring voltage stability in power systems is chosen and it is tested on the IEEE39-bus system using Matlab-Power System Analysis Toolbox PSAT.<strong></strong></p>


2016 ◽  
Vol 136 (1) ◽  
pp. 63-71
Author(s):  
Ryouhei Kitagawa ◽  
Teruo Takagi ◽  
Koichi Yokoi ◽  
Kimihiko Shimomura ◽  
Atsushi Harada ◽  
...  

2021 ◽  
Vol 11 (15) ◽  
pp. 7007
Author(s):  
Janusz P. Paplinski ◽  
Aleksandr Cariow

This article presents an efficient algorithm for computing a 10-point DFT. The proposed algorithm reduces the number of multiplications at the cost of a slight increase in the number of additions in comparison with the known algorithms. Using a 10-point DFT for harmonic power system analysis can improve accuracy and reduce errors caused by spectral leakage. This paper compares the computational complexity for an L×10M-point DFT with a 2M-point DFT.


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