Gramians Method of Steady-State Stability Analysis for Large Electrical Power Systems

2012 ◽  
Vol 45 (21) ◽  
pp. 466-471 ◽  
Author(s):  
Atlas V. Ahmetzyanov ◽  
Alexey B. Iskakov ◽  
Alex A. Grigoryev ◽  
Alexander M. Matinyan ◽  
Igor B. Yadykin ◽  
...  
Keyword(s):  
Steady State ◽  
Stability Analysis ◽  
Power Systems ◽  
Electrical Power ◽  
Electrical Power Systems ◽  
Steady State Stability

scholarly journals Steady state stability in electrical power systems considering operation limits in generators, transformers and transmission lines

2021 ◽  
Vol 18 (2) ◽  
Author(s):  
Fredy Estuardo Tamayo Guzmán ◽  
Carlos Andrés Barrera-Singaña
Keyword(s):  
Steady State ◽  
Power Systems ◽  
Power System ◽  
Transmission Lines ◽  
Electrical Power ◽  
Operating Conditions ◽  
Electrical Power Systems ◽  
Capacity Curves ◽  
Remedial Actions ◽  
Steady State Stability

Electrical power systems are exposed to several events that can cause unstable operation scenarios. This is due to improper operation of certain components. If an event occurs, the system must be designed to overcome that contingency, thus remaining in a permanent condition that must be evaluated in order to monitor and prevent a possible collapse of the system. An evaluation of steady state stability is proposed at this work based on the capacity curves of generators, transformers and transmission lines. These remarked curves provide information on the operation point of these elements, thus allowing the application of remedial actions. PowerFactory and Matlab are used to carry out the tool for monitoring the operation points after a contingency. The effectiveness of the developed tool is validated at the IEEE 39-bus power system model, where results shows that the functionalaty for different contingencies based on the operating conditions when the components of the power system are varied, cosnquently, the tool identifies cases that require actions at the operational level.

scholarly journals An Analytical Model for Small Signal Stability Analysis in Unbalanced Electrical Power Systems

2020 ◽  
Vol 10 (24) ◽  
pp. 8855
Author(s):  
Humberto Verdejo ◽  
Pablo Moreira ◽  
Wolfgang Kliemann ◽  
Cristhian Becker ◽  
José Delpiano
Keyword(s):  
Stability Analysis ◽  
Power Systems ◽  
General Model ◽  
Electrical Power ◽  
Small Signal ◽  
Small Signal Stability ◽  
Electrical Power Systems ◽  
Signal Stability ◽  
Phase Representation ◽  
Small Signal Stability Analysis

This paper presents a general model to carry out a small signal stability analysis in electrical power systems (EPSs) that operate in unbalanced conditions. The classic traditional approach is based on a phase representation where it is supposed that the triphasic electric grid does not suffer any variations during its operation. With the presence of unbalances in transmission lines and loads, it is necessary to develop a general model that allows answering the needs and challenges with which modern electric systems must deal. The present work firstly intends to address the three-phase representation of an EPS, including the controllers. The proposed model is applied to a classical test system, a three machine-nine bus system, considering all the dynamic and algebraic variations associated with angular stability analysis. The proposed approach to small signal stability analysis shows results that differ from the classical analysis. The results are backed up with time domain simulations, and therefore, these results could be used in the calculation of the controllers that operate in unbalanced multimachine systems.

scholarly journals Review of Steady-State Electric Power Distribution System Datasets

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4826
Author(s):  
Steffen Meinecke ◽  
Leon Thurner ◽  
Martin Braun
Keyword(s):  
Steady State ◽  
Power Systems ◽  
Power System ◽  
Power Distribution ◽  
Distribution System ◽  
New Technologies ◽  
Electrical Power ◽  
Background Information ◽  
Electrical Power Systems ◽  
Power Distribution System

Publicly available grid datasets with electric steady-state equivalent circuit models are crucial for the development and comparison of a variety of power system simulation tools and algorithms. Such algorithms are essential to analyze and improve the integration of distributed energy resources (DERs) in electrical power systems. Increased penetration of DERs, new technologies, and changing regulatory frameworks require the continuous development of the grid infrastructure. As a result, the number and versatility of grid datasets, which are required in power system research, increases. Furthermore, the used grids are created by different methods and intentions. This paper gives orientation within these developments: First, a concise overview of well-known, publicly available grid datasets is provided. Second, background information on the compilation of the grid datasets, including different methods, intentions and data origins, is reviewed and characterized. Third, common terms to describe electric steady-state distribution grids, such as representative grid or benchmark grid, are assembled and reviewed. Recommendations for the use of these grid terms are made.

Neural Network Based Prediction of the Steady-State Security for Electrical Power Systems

1995 ◽  
Vol 28 (26) ◽  
pp. 311-316 ◽  
Author(s):  
D. Menniti ◽  
C. Picardi ◽  
N. Sorrentino ◽  
A. Testa
Keyword(s):  
Neural Network ◽  
Steady State ◽  
Power Systems ◽  
Electrical Power ◽  
Electrical Power Systems ◽  
State Security

scholarly journals Alternative Under Frecuency Load Disconection Methodology Based on Semi-Adaptative Model

Enfoque UTE ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 96-107 ◽  
Author(s):  
Diego Carrión ◽  
Alex Ayo ◽  
Jorge Wilson González
Keyword(s):  
Stability Analysis ◽  
Power Systems ◽  
Power System ◽  
Electrical Power ◽  
Low Frequency ◽  
Dynamic State ◽  
Frequency Change ◽  
Electrical Power Systems ◽  
Alternative Methodology ◽  
The Moment

Stability analysis in electrical power systems is based on the study in dynamic state of the voltage and frequency, since at the moment that there is some contingency it fluctuates drastically due to the primary and secondary controls of the voltage and frequency to the power systems that act on the generators. In order to solve the possible stability problems that may arise in power systems, various techniques have been developed that act on the generating machines for their protection as well as on the loads for the power cut. The present investigation proposes an alternative methodology for load disconnection by low frequency as an option to save the power system from a possible blackout due to instability due to a fall in the frequency, managing to improve the results affected by other improved techniques, the frequency change range, frequency deviation and the effects of demand disconnection. The proposed methodology was tested in the IEEE 14 bus system.

Neural Networks to Transient Stability Analysis of Electrical Power Systems

2016 ◽  
Author(s):  
Carlos R. Minussi ◽  
Lilian Milena Ramos ◽  
Sandra Cristina Marchiori ◽  
Mara L�cia Martins Lopes ◽  
Anna Diva P. Lotufo
Keyword(s):  
Neural Networks ◽  
Stability Analysis ◽  
Power Systems ◽  
Transient Stability ◽  
Electrical Power ◽  
Electrical Power Systems ◽  
Transient Stability Analysis

Alleviation of steady state overvoltages in electrical power systems

2004 ◽  
Author(s):  
V.A. Diachkov ◽  
A.A. Gremiakov ◽  
V.A. Stroev
Keyword(s):  
Steady State ◽  
Power Systems ◽  
Electrical Power ◽  
Electrical Power Systems

State estimation programs application for computation problems solution of electrical power systems steady-state modes based on operating restrictions

2014 ◽  
Author(s):  
Alexander V. Shekochihin ◽  
Alexey V. Bubnov ◽  
Irina A. Shekochihina ◽  
Alexander N. Kirichenko ◽  
Vladislav V. Barskov
Keyword(s):  
Steady State ◽  
Power Systems ◽  
State Estimation ◽  
Electrical Power ◽  
Electrical Power Systems
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