Duyurular
SEMİNER: Transformer-Based Solutions For The Reduction of Inrush And Phase-Hop Currents, Dr. Rasim Doğan, 26 Aralık 2024 Perşembe, 14:00, Bölüm Konferans Salonu
23 Aralık 2024
Hacettepe Üniversitesi Elektrik ve Elektronik Mühendisliği Bölümü tarafından düzenlenen Bölüm Seminerleri kapsamında Afyon Kocatepe Üniversitesi'nden Dr. Öğr. Üyesi Rasim Doğan, "Transformer-Based Solutions For The Reduction of Inrush And Phase-Hop Currents" başlıklı bir seminer verecek.
Tüm ilgilenenleri seminerimize davet ederiz.
Sorularınız için:
Dr. İsmail Uyanık, uyanik@ee.hacettepe.edu.tr
İNGİLİZCE ÖZET
A comprehensive literature review shows that transformer-based solutions are superior for the mitigation of inrush currents than external (to the transformer) solutions. The use of air gaps and low-permeability (iron) materials are known techniques for this purpose. The effectiveness of these approaches for reducing inrush and phase-hop currents is investigated. Studies are carried out on toroidal transformers, due to their broad application in power electronics devices. Contrary to common belief, it is demonstrated that air gaps do not reduce the inrush currents when a transformer is fully demagnetized. However, inrush currents can be mitigated by the use of low-permeability iron materials. It is also demonstrated that air-gaps significantly reduce inrush currents when transformers have residual flux, e.g. for phase-hop conditions. Analytical expressions are derived to compute the mitigation factor for a specific gap length. The results and formulae presented in this thesis are verified with laboratory experiments, transient simulations with validated circuit models, and 2D finite element simulations.
KONUŞMACININ BİYOGRAFİSİ
Rasim Dogan received the B.Sc. degree in Electrical & Electronics Engineering from Gazi University, Ankara, Türkiye, in 2008, the M.Sc. degree in Electrical Engineering from the Polytechnic Institute of New York University, Brooklyn, NY, USA, in 2012, and the Ph.D. degree in Electrical Engineering from NYU Polytechnic School of Engineering, Brooklyn, NY, USA, in 2015.
He is currently an Assistant Professor at the Department of Electrical Engineering, Afyon Kocatepe University, Afyonkarahisar-Türkiye. His research interests include the simulation and calculation of electromagnetic fields applied to transformers, power system modeling, load modeling, and renewable energy.
Seminer Tarihi: 26 Aralık 2024 Perşembe
Seminer Saati: 14:00
Seminer Yeri: HÜ EEMB Konferans Salonu
Sorularınız için:
Dr. İsmail Uyanık, uyanik@ee.hacettepe.edu.tr
İNGİLİZCE ÖZET
A comprehensive literature review shows that transformer-based solutions are superior for the mitigation of inrush currents than external (to the transformer) solutions. The use of air gaps and low-permeability (iron) materials are known techniques for this purpose. The effectiveness of these approaches for reducing inrush and phase-hop currents is investigated. Studies are carried out on toroidal transformers, due to their broad application in power electronics devices. Contrary to common belief, it is demonstrated that air gaps do not reduce the inrush currents when a transformer is fully demagnetized. However, inrush currents can be mitigated by the use of low-permeability iron materials. It is also demonstrated that air-gaps significantly reduce inrush currents when transformers have residual flux, e.g. for phase-hop conditions. Analytical expressions are derived to compute the mitigation factor for a specific gap length. The results and formulae presented in this thesis are verified with laboratory experiments, transient simulations with validated circuit models, and 2D finite element simulations.
KONUŞMACININ BİYOGRAFİSİ
Rasim Dogan received the B.Sc. degree in Electrical & Electronics Engineering from Gazi University, Ankara, Türkiye, in 2008, the M.Sc. degree in Electrical Engineering from the Polytechnic Institute of New York University, Brooklyn, NY, USA, in 2012, and the Ph.D. degree in Electrical Engineering from NYU Polytechnic School of Engineering, Brooklyn, NY, USA, in 2015.
He is currently an Assistant Professor at the Department of Electrical Engineering, Afyon Kocatepe University, Afyonkarahisar-Türkiye. His research interests include the simulation and calculation of electromagnetic fields applied to transformers, power system modeling, load modeling, and renewable energy.
Tüm güncel duyurular
