Browsing by Author "Ozdemir, Aydogan"
Now showing items 1-14 of 14
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An advanced Grey Wolf Optimization Algorithm and its application to planning problem in smart grids
Ahmadi, Bahman; Younesi, Soheil; Ceylan, Oguzhan; Ozdemir, Aydogan (Springer, 2022)Due to the complex mathematical structures of the models in engineering, heuristic methods which do not require derivative are developed. This paper improves recently developed Grey Wolf Optimization Algorithm by extending ... -
Allocation of Distributed Generators Using Parallel Grey Wolf Optimization
Younesi, Soheil; Ahmadi, Bahman; Ceylan, Oguzhan; Ozdemir, Aydogan (IEEE, 2021)This paper solves the allocation problem of distributed generators (DGs) in smart grids utilizing a grey wolf optimization (GWO) algorithm. By parallelizing GWO, it presents the impact of using various number of processors ... -
The Arithmetic Optimization Algorithm for Optimal Energy Resource Planning
Ahmadi, Bahman; Younesi, Soheil; Ceylan, Oguzhan; Ozdemir, Aydogan (IEEE, 2021)This study presents a new formulation regarding optimal placement and sizing of multi-type distributed generations (DGs) and energy storage systems (ESSs) to enhance the reliability of a radial distribution system and to ... -
Branch outage solution using particle swarm optimization
Ceylan, Oğuzhan; Ozdemir, Aydogan; Dağ, Hasan (2008)For post outage MW line flows and voltage magnitude calculations most of the methods use linear methods because of their simplicity. Especially for reactive power flow calculations one can face high errors. In this paper ... -
Cuckoo search algorithm for optimal siting and sizing of multiple distributed generators in distribution grids
Ahmadi, Bahman; Ceylan, Oguzhan; Ozdemir, Aydogan (IEEE, 2019)Distribution networks (DNs) are facing numerous challenges such as variability of demands, environmental issues, high power losses, and fluctuating v oltage p rofiles. Distributed energy resources (DERs) are becoming more ... -
Distributed energy resource allocation using multi-objective grasshopper optimization algorithm
Ahmadi, Bahman; Ceylan, Oguzhan; Ozdemir, Aydogan (Elsevier Science Sa, 2021)The penetration of small-scale generators (DGs) and battery energy storage systems (BESSs) into the distribution grid is growing rapidly and reaching a high percentage of installed generation capacity. These units can play ... -
Double branch outage modeling and its solution using differential evolution method
Ceylan, Oğuzhan; Ozdemir, Aydogan; Dağ, Hasan (2011)Power system operators need to check the system security by contingency analysis which requires power flow solutions repeatedly. AC power flow is computationally slow even for a moderately sized system. Thus fast and ... -
Gravitational search algorithm for post-outage bus voltage magnitude calculations
Ceylan, Oğuzhan; Ozdemir, Aydogan; Dağ, Hasan (2010)Branch outage problem is one of the key problems in power system security analysis. This paper solves branch outage problem using a bounded approach. Local constrained optimization problem in the bounded approach is solved ... -
Harmony search method based parallel contingency analysis
Ceylan, Oğuzhan; Dağ, Hasan; Ozdemir, Aydogan (2010)Power system security management is one of the key problems in power system analysis. Power system management center operators need to simulate contingencies as fast as possible and take the remedial actions in time. These ... -
Multi-objective Distributed Energy Resource Integration in Radial Distribution Networks
Ahmadi, Bahman; Younesi, Soheil; Ceylan, Oguzhan; Ozdemir, Aydogan (IEEE, 2021)Despite numerous studies on the optimal design and planning of distribution networks (DNs), little attention has been paid to improving the reliability of the distribution systems through optimal operation and planning of ... -
A multi-objective optimization evaluation framework for integration of distributed energy resources
Ahmadi, Bahman; Ceylan, Oguzhan; Ozdemir, Aydogan (Elsevier, 2021)Renewable distributed generation and energy storage systems (ESSs) have been a gamechanger for a reliable and sustainable energy supply. However, this new type of generation should be optimally planned and operated to ... -
Post outage bus voltage calculations for double branch outages
Ceylan, Oğuzhan; Ozdemir, Aydogan; Dağ, Hasan (IEEE, 2012)Secure operation of electrical power systems is vital hence fast and accurate post-outage state calculations are important for contingency analysis. Contingency analysis includes simulations of both the single and double ... -
Post-outage state estimations for outage management
Ceylan, Oğuzhan; Ozdemir, Aydogan; Dağ, Hasan (IFAC Secretariat, 2011)Real time outage information is required to the utility operators for outage management process. In addition to some basic information regarding the outage post-outage system status will help to improve the response to ... -
Voltage Control of Unbalanced Distribution Systems with Penetration of Renewable Sources: A Gradient-Based Optimization Approach
Ebadi, Ramin; Senyuz, Hande; Aboshady, Fathy; Ceylan, Oguzhan; Pisica, Ioana; Ozdemir, Aydogan (IEEE, 2022)The penetration of distributed energy resources (DERs), including renewable energy sources (RES), into electric power systems has led to several challenges for the system operators. Despite various economic and environmental ...