Browsing by Author "(ORCID 0000-0002-8503-1767 & YÖK ID 280588) Poyrazoğlu, Göktürk"
Now showing items 41-52 of 52
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Price estimation by random walk mean reversion in day-ahead electricity market
Poyrazoğlu, Göktürk (IEEE, 2019)The fluctuations in the Day-ahead electricity market (DAM) prices generally follow the periodic demand variance. However, the observations of historical data also reveal large jumps or spikes that might be defined as the ... -
Quasi-resonant circuitry to improve heat transfer and efficiency in induction cooker
Küçükosman, Hüseyin; Poyrazoğlu, Göktürk (IEEE, 2021)This paper proposes a dual-mode coil structure for induction cookers using a single switching element quasi-resonant circuit and examines its effect on heating performance. In an induction cooker, the material base to be ... -
Reassessment of bill management by batteries with various TOU tariffs: A pilot project from Turkey
Çetin, A.; Sancar, Semanur; Bayatmakoo, A.; Kaya, K.; Ozen, C.; Poyrazoğlu, Göktürk (IEEE, 2022)Yesilirmak Distribution System Operator, one of Turkey's leading distribution system operators, carried out a pilot project with the support of the university in order to be technically ready when its customers want to ... -
Rethinking temporal demand data to reduce distribution transformer losses: A case study from a Turkish DSO
Sancar, Semanur; Kartci, Emin; Poyrazoğlu, Göktürk (IEEE, 2021)With the increase in digital measurement and monitoring devices in the Turkish electricity grid, the possibilities of processing the obtained data and revealing meaningful information are also increasing. In this project, ... -
Revisiting network reconfiguration in the era of unpredictable ev charger integration
Tekeler, Eren; Poyrazoğlu, Göktürk (IEEE, 2023)An expanded network of electric vehicle (EV) chargers is required due to the rapid uptake of EVs. The voltage profile may be disturbed by the unanticipated integration of these chargers into distribution networks, potentially ... -
Safety test setup installation for e-bike battery systems
Savrum, Mert; Poyrazoğlu, Göktürk (IEEE, 2022)Recently, battery project studies have been increasing worldwide. Companies carrying out these projects must have their products checked for design safety and must obtain test approval reports in order to release their ... -
Slim design of LLC resonant converter for OLED TV by using toroidal transformer
Kurt, Samet; Poyrazoğlu, Göktürk (IEEE, 2021)LLC resonant converter is used widely in the application of consumer electronics, battery charging, automotive, etc. due to its popularity and ease of control; however, its large footprint size makes it difficult to use ... -
A stochastic simulation for a hybrid system of solar panels and EV chargers
Hasdemir, Berke Can; Açıkgöz, Dilber; Poyrazoğlu, Göktürk (IEEE, 2020-10-20)In line with the increasing number of electric vehicles, a stochastic approach that simulates the charging stations which is managed hybridlike system of a solar array is discussed in this study. A smart charging system ... -
A stochastic value estimation tool for electric vehicle charging points
Poyrazoğlu, Göktürk; Göktürk, Elvin Çoban (Elsevier, 2021-07-15)A stochastic value estimation tool serves as a planning tool with embedded modules for electrical and financial valuation of electric vehicle charging points. The tool is developed in stochastic nature for selected service ... -
The time-lag effect of natural gas prices on electricity prices in turkiye: an analysis of the post-pandemic market
Özmen, Betül Elif; Poyrazoğlu, Göktürk (IEEE, 2023)This study investigates the relationship between natural gas and electricity prices in Turkiye, one of the countries affected by sudden increases in natural gas prices after the pandemic and regional conflicts. Turkiye ... -
V2G applicable electric vehicle chargers, power converters & their controllers: A review
Şahinler, Görkem Berk; Poyrazoğlu, Göktürk (IEEE, 2020-05-27)This paper aims to present various grid-connected electric vehicle (EV) charger topologies with battery technologies and power electronics converters utilized in bidirectional EV chargers including DC/DC synchronous buck ... -
A wireless power transfer method for electric vehicles by synchronization to secondary resonance
Çeşmeci, Mete; Poyrazoğlu, Göktürk (IEEE, 2021)In this study, an alternative method and framework for a wireless power transfer system to a moving object such as an electric vehicle or a robot are presented. The well-known systems and their common series-connected/switched ...
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