Browsing Yönetim Bilişim Sistemleri Bölümü Koleksiyonu by Author "Özdemir, Aydoğan"
Now showing items 1-9 of 9
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Branch outage simulation based contingency screening by gravitational search algorithm
Ceylan, Oğuzhan; Özdemir, Aydoğan; Dağ, Hasan (Praise Worthy Prize Srl, 2012)Power systems contingency analysis is an important issue for electric power system operators. This paper performs branch outage simulation based contingency screening using a bounded network approach. Local constrained ... -
Comparison of post outage bus voltage magnitudes estimated by harmony search and differential evolution methods
Ceylan, Oğuzhan; Özdemir, Aydoğan; Dağ, Hasan (2009)Contingency studies are indispensable tools of both the power system planning and operational studies. Real time implementation of operational problems makes necessary the use of high speed computational methods while ... -
Double branch outage modeling and simulation: Bounded network approach
Ceylan, Oğuzhan; Özdemir, Aydoğan; Dağ, Hasan (Elsevier Science, 2015)Energy management system operators perform regular outage simulations in order to ensure secure operation of power systems. AC power flow based outage simulations are not preferred because of insufficient computational ... -
Grey Wolf optimizer for allocation and sizing of distributed renewable generation
Ahmadi, Bahman; Ceylan, Oğuzhan; Özdemir, Aydoğan (Institute of Electrical and Electronics Engineers Inc., 2019)Increasing penetration of distributed energy resources (DERs) have brought operational and control philosophy changes in Smart Grids (SGs). Renewable energy based technologies are becoming more important due to their ... -
Impacts of Load and Generation Volatilities on the Voltage Profiles Improved by Distributed Energy Resources
Ahmedi, Bahman; Ceylan, Oğuzhan; Özdemir, Aydoğan (Institute of Electrical and Electronics Engineers Inc., 2020)Weather-dependent distributed renewable energy sources such as photovoltaics (PVs) and wind turbines (WT) are increasingly being connected to distribution networks (DNs). Increased penetration of these intermittent sources ... -
Optimal Allocation Of Multi-Type Distributed Generators For Minimization Of Power Losses In Distribution Systems
Ahmadi, Bahman; Ceylan, Oğuzhan; Özdemir, Aydoğan (Institute of Electrical and Electronics Engineers Inc., 2019)Distributed generation (DG), including photovoltaics (PVs), wind turbines (WTs) are becoming vital for Active Distribution Networks (ADN). Therefore, optimal sizing and allocation of these units can improve voltage profiles ... -
Parallel Contingency Analysis Using Differential Evolution Based Solution For Branch Outage Problem
Ceylan, Oğuzhan; Dağ, Hasan; Özdemir, Aydoğan (IEEE, 2010)Contingency analysis is one of the most fundamental work an electricity management center operator has to perform regularly. If both bus voltage magnitudes and reactive power flowing on the branches during any type of ... -
Towards Faster Branch Outage Simulations Using Simulated Annealing and Parallel Programming
Ceylan, Oğuzhan; Özdemir, Aydoğan; Dağ, Hasan (IEEE, 2009)Contingency studies such as branch outage and generator outage are among important studies of energy management centers operations. Branch outage modeling on the other hand is one of the basic steps of post-outage state ... -
Voltage Profile Improving and Peak Shaving Using Multi-type Distributed Generators and Battery Energy Storage Systems in Distribution Networks
Ahmedi, Bahman; Ceylan, Oğuzhan; Özdemir, Aydoğan (Institute of Electrical and Electronics Engineers Inc., 2020)Optimal sizing and siting of distributed generation (DG) units play an important role for improving voltage profile and reducing power losses. Moreover, battery energy storage system (BESS) units may help peak shaving. ...