Ozan Keysan

E-mail
keysan@metu.edu.tr
Department
Department of Electrical and Electronics Engineering
Scopus Author ID
Web of Science Researcher ID
Muzzle Voltage Experiments of the EMFY-3 Launcher
Tosun, Nail; Karagoz, Mustafa; Yurdakonar, Ferhat; Gulletutan, Gorkem; Yildirim, Baran; Keysan, Ozan (2022-07-01)
Muzzle voltage is an essential diagnostic tool used in both contact resistance modeling and transition determination. However, it is challenging to stem the necessary meanings from the collected measurements. In this study...
Generalized Model of Modular Two Element Compensated IPT Systems with Common DC-Bus
Ayaz, Enes; Altun, Ogün; Polat, Hakan; Keysan, Ozan (2022-01-01)
In this paper, modular IPT systems which have receiver series/parallel compensation with series/parallel common DC-Bus are investigated. For these systems, power sharing between the receiver modules is vulnerable to system...
Sensitivity Analysis for the Inductance Gradient of EMFY-3 Electromagnetic Launcher
Tosun, Nail; Civil, Anil; Oruc, Ahmet Yasin; Yildirim, Baran; Ozceylan, Bekir Mert; Bolat, Bora; Yurdakul, Emre Burak; Tan, Evren; Yurdakonar, Ferhat; Akdemir, Huseyin; Gungen, Ibrahim; Onur, Ibrahim; Karagoz, Mustafa; Cavbozar, Ozgur; Demirkol, Rasih Hakan; Gocmen, Ulas; Keysan, Ozan (2022-01-01)
ASELSAN Inc. has been working on electromagnetic launch technologies since 2014. The first prototype, EMFY-1, has a 25 mm x 25 mm square bore and 3-m-length rails. The second prototype, EMFY-2, has a 50 x 50 mm square bore...
A Modular Inductive Power Transfer System for Synchronous Machine Field Excitation
Altun, Ogün; Ayaz, Enes; Polat, Hakan; Keysan, Ozan (2022-01-01)
In this paper a 1 kW series-series compensated, two transmitter four receiver common DC bus parallel connected inductive power transfer system is introduced. The aim is to obtain a modular system with increased reliability...
Fault Tolerant Multi-Tx/Multi-Rx Inductive Power Transfer System with a Resonator Coil
Ayaz, Enes; Altun, Ogün; Polat, Hakan; Keysan, Ozan (2022-01-01)
IEEEThis paper presents a novel multi-transmitter (Tx) / multi-receiver (Rx) inductive power transfer system. Compared to conventional single-Tx/single-Rx systems, multi-Tx/multi-Rx topologies increase reliability and faul...
Mechanical and Thermal Design of an Optimized PCB Motor for an Integrated Motor Drive System with GaNFETs
Tokgöz, Furkan; Gulsuna, Ozgur; Karakaya, Furkan; Çakal, Gökhan; Keysan, Ozan (2022-01-01)
IEEEPCB motors are a viable alternative to commercial electric motors as they are easy to mass-produce and have low manufacturing costs. Moreover, integrated motor drives have gained popularity thanks to their high power d...
Carrier Phase Shift Method of SPWM for Concurrent Wired and Wireless Power Transfer Systems
Ayaz, Enes; Altun, Ogün; Keysan, Ozan (2022-01-01)
IEEEThis paper presents an approach for concurrent power transfer to wired and wireless systems using just a single inverter. The approach utilizes a novel carrier phase-shift (CPS) method that independently controls the i...
Centralized Microgrid Control System in Compliance with IEEE 2030.7 Standard Based on an Advanced Field Unit
Pouraltafi-kheljan, Soheil; Ugur, Mesut; Bozulu, Efecan; Caliskan, Bahadir Can; Keysan, Ozan; Göl, Murat (2021-11-01)
The necessity for the utilization of microgrids emerges from the integration of distributed energy resources, electric vehicles, and battery storage systems into the conventional grid structure. In order to achieve a prope...
Parallel connected GaN E-HEMT VSI-based servo drives for PMSMs
Yuruk, Huseyin; Keysan, Ozan (2021-09-01)
The operation of parallel-connected servo drives has the advantages of increasing the torque (hence the power) capacity, reliability, redundancy and modularity. However, smaller discrepancies of the system clocks of the in...
Comparison of the Effects of Nonlinearities for Si MOSFET and GaN E-HEMT Based VSIs
Yuruk, Huseyin; Keysan, Ozan; Ulutas, Baris (2021-07-01)
Nonlinearities in voltage source inverters (VSIs) such as; dead time, switching time, delay time, voltage drops on the power switches, parasitic capacitance, etc., are considered to be the main sources of the output voltag...
Citation Formats