Results 11 to 20 of about 170 (109)

Implementation of Static Line Voltage Stability Indices for Improved Static Voltage Stability Margin

Journal of Electrical and Computer Engineering, 2019
Nowadays, the changes of economic, environment, and regulations are forcing the electric utilities to operate systems at maximum capacity. Therefore, the operation and control of power system to improve the system stability has been receiving a great ...
Natakorn Thasnas, Apirat Siritaratiwat
doaj   +3 more sources

Predicting Voltage Stability Using Graph Convolutional Networks [PDF]

Journal of Engineering
Real-time voltage stability assessment is critical for secure power grid operation, yet traditional simulation-based methods suffer from high computational latency.
Saad Hayat, Aamir Nawaz, Aftab Ahmed Almani, Ehtasham Mustafa, Zahid Javid, William Holderbaum   +5 more
doaj   +3 more sources

Performance of Various Voltage Stability Indices in a Stochastic Multiobjective Optimal Power Flow Using Mayfly Algorithm

Journal of Electrical and Computer Engineering, 2022
The performance of voltage stability indices in the multiobjective optimal power flow of modern power systems is presented in this work. Six indices: the Voltage Collapse Proximity Index (VCPI), Line Voltage Stability Index (LVSI), Line Stability Index ...
Rebeccah Kyomugisha, Christopher Maina Muriithi, George Nyauma Nyakoe   +2 more
doaj   +3 more sources

GA based optimal planning of VAR sources using Fast Voltage Stability Index method

Archives of Electrical Engineering, 2016
This paper presents a novel approach for reactive power planning of a connected power network. Reactive power planning is nothing but the optimal usage of all reactive power sources i.e., transformer tap setting arrangements, reactive generations of ...
Bhattacharyya Biplab, Rani Shweta, Vais Ram Ishwar, Bharti Indradeo Pratap   +3 more
doaj   +3 more sources

A Novel Methodology for Strengthening Stability in Electrical Power Systems by Considering Fast Voltage Stability Index under N − 1 Scenarios

Energies, 2023
An electrical power system (EPS) is subject to unexpected events that might cause the outage of elements such as transformers, generators, and transmission lines.
Manuel Dario Jaramillo, Diego Francisco Carrión, Jorge Paul Muñoz   +2 more
doaj   +2 more sources

Optimal Reactive Power Planning Using FACTS Devices for Voltage Stability Enhancement in Power Transmission Systems

Energy Science & Engineering
The increased demand for electricity has forced power systems to operate near their stability limits. Optimal reactive power planning (ORPP) can enhance voltage stability and provide much‐needed support for grid operation. Flexible AC transmission system
Rawan Abu Zeitawyeh, Ayman Faza
doaj   +2 more sources

Optimizing the hybrid PVDG and DSTATCOM integration in electrical distribution systems based on a modified homonuclear molecules optimization algorithm

IET Renewable Power Generation, Volume 17, Issue 12, Page 3075-3096, 7 September 2023., 2023
This study proposes the optimal integration of hybrid photovoltaic distributed generation (PVDG) and distribution static synchronous compensator (DSTATCOM) devices into IEEE 33 and 69‐bus EDS test systems. To achieve this, a modified version of the homonuclear molecules optimization (mHMO) algorithm is developed to determine the optimal size and ...
Nasreddine Belbachir, Salah Kamel, Fatma A. Hashim, Juan Yu, Hamed Zeinoddini‐Meymand, Sahar F. Sabbeh   +5 more
wiley   +1 more source

A Lyapunov spectrum based hybrid static and dynamic approach for contingency ranking

IET Generation, Transmission &Distribution, Volume 17, Issue 16, Page 3706-3717, August 2023., 2023
This paper presents a novel combined static and dynamic method for contingency ranking which takes advantage of both techniques and shows the performance evaluation for the hybrid method using accuracy and efficiency as criteria. The proposed method uses three well‐known static indices and the Lyapunov spectrum based dynamic approach to select the ...
Mahdi Aghtar, Mohammadreza Cheraghzadeh, Aref Doroudi, Ali Motie Nasrabadi   +3 more
wiley   +1 more source

Voltage Stability Assessment and Control Using Indices and FACTS: A Comparative Review

Journal of Electrical and Computer Engineering, Volume 2023, Issue 1, 2023., 2023
The problem of voltage stability is becoming a more acute and indispensable topic given the major and sensitive role it plays in the electrical system. It can be considered a major factor in the initiation of blackouts around the world. Hence, the need for reliable and fast tools to detect and control the approach of instability points throughout the ...
Rabiaa Gadal, Aziz Oukennou, Faissal El Mariami, Abdelziz Belfqih, Naima Agouzoul, Rossano Musca   +5 more
wiley   +1 more source

Optimal reactive power planning using oppositional grey wolf optimization by considering bus vulnerability analysis

Energy Conversion and Economics, Volume 3, Issue 1, Page 38-49, February 2022., 2022
Abstract Power system instability primarily results from the deviation of the frequency from its predefined rated value. This deviation causes voltage collapse, which further leads to sudden blackouts of the power system network. It is often triggered by a lack of reactive capacity.
Rohit Babu, Saurav Raj, Bishwajit Dey, Biplab Bhattacharyya   +3 more
wiley   +1 more source