05. - 07.06.2018
PCIM Europe 2018
Power Electronics | Intelligent Motion | Renewable Energy | Energy Management


Poster Session

AC-DC, DC-DC Converters


Wednesday, 06.06.2018, 15:15 - 17:30 hrs


Yasuyuki Nishida, Chiba Institute of Technology, J


15:15 Resonant Inverter Stage in Modular Converter for Electric Vehicle Charging
Prof. Dimitar Arnaudov, Technical University of Sofia, Sofia, Bulgarien
The following paperwork considers a resonant inverter stage for implementation in a realized on modular principle multi-phase converter for fast charging of electric vehicles. Model based design approach is proposed on the base of a developed model of the converter in MATLAB Simulink. Analytical expressions for design of the inverter stage are obtained. Considerations for the design procedure are discussed. Simulations and experimental examinations are carried out for verification of the inverter design.
15:15 Modeling and Investigation of Converter Modules Simultaneous Operation in Electric Vehicle Charging Systems
M.Sc. Stoyan Vuchev, Technical University of Sofia, Sofia, Bulgarien
The following paperwork considers a resonant inverter stage supplied by a controllable three-phase bridge rectifier as part of a multi-phase converter for fast charging of electric vehicles. Models of the two examined converters are developed in MATLAB Simulink. The conditions for simultaneous operation of the resonant inverter and the rectifier are discussed with respect to the output power control. Normalized characteristics of the two converters are obtained.
15:15 SiC-Hybrid Three Level T-Type Rectifier
Dr.-Ing. Hans-Günter Eckel, University of Rostock, Rostock, Deutschland
To fulfill the standards for harmonics for rectifiers operated in the public grid, power factor correction is mandatory. For single phase rectifiers, the PFC circuits are state of the art, while they are not commonly used for three phase rectifiers. In this paper, the efficiency of two level topologies with hybrid Si - SiC and full SiC devices is compared to a hybrid three level T-type solution of a Vienna type rectifier.
15:15 650 V Silicon Carbide MOSFETs in Totem-Pole Bridgeless PFC Design Achieves High Efficiency (80+ Titanium) Without Adding Complexity and Cost
Adil Salman, Wolfspeed, Durham, USA
650 V Silicon Carbide MOSFETs in Totem-Pole Bridgeless PFC Design achieves high efficiency (80+ Titanium) without adding complexity and cost.
15:15 GaN Power ICs and Off-the-Shelf Controllers Enable 150W, 500kHz AC-DC with 4x Power Density
M.Eng. Tom Ribarich, Navitas Semiconductor, El Segundo, USA
This paper describes a 150W AC/DC power supply operating at 500kHz that uses GaN power ICs. The GaN power ICs enable high frequency switching and the high frequency switching enables a dramatic size reduction of the magnetic components. This results in a 4x increase in power density versus existing products in the marketplace today.
15:15 Active Phase Shifting Technique for Inductive Power Transfer (IPT) Systems
M.Eng. Malvika Kamat, Technology Network Allgäu, Memmingen, Deutschland
The paper presents an active phase shifting technique for smooth variation of input power in IPT systems. This can be achieved by using a controlled rectifier. With the variation of fundamental amplitude of primary and secondary voltages along with changing phase angles between them, a control of input power can be achieved. Circumstances under which zero voltage switching of the primary and secondary side switching elements are lost have been observed. In addition, an idea for feedback-less control of phase angles has been proposed.
15:15 Analysis of a ZVS Synchronous Sepic/Zeta DC/DC Converter
Prof. Dr.-Ing. Burkhard Ulrich, Baden-Wuerttemberg Cooperative State University Stuttgart, Horb am Neckar, Deutschland
This paper presents soft-switching DC/DC converters based on Sepic/Zeta topologies. Zero voltage switching (ZVS) is achieved by using a synchronous converter topology and a suitable control of the switches. Converter operation is analyzed and the conditions for achieving ZVS are derived.Simulation results and measurements on a prototype converter are presented to verify the operating principle.
15:15 High Efficiency Shoot-Through Modulation Technique for Quasi-Z-Source DC/DC Converters
M.Eng. Yuba Raj Kafle, Macquarie University, Sydney, Australien
An improved shoot-through pulse width modulation (PWM) control technique for quasi-z-source DC/DC converters is presented. The improved modulation technique is derived from PWM control with shifted shoot-through, and reduces both switching losses and electromagnetic interference by reducing the number of switching transitions and increasing the proportion of soft switching transitions. The improved modulation technique also simplifies closed-loop control of the converter. A 500W quasi-z-source DC/DC converter prototype was built to verify the effectiveness of the proposed method.


Speaker detail

Professor Dimitar Arnaudov
Prof. Dimitar Arnaudov
Technical University of Sofia, Sofia, Bulgarien
Dimitar Arnaudov he joined the Faculty of Electronic Engineering and Technologies at Technical University of Sofia in 2009, where he is an Associated Professor at the Department of Power electronics. His interests include power electronics, industrial electronics, power supplies, induction heating and renewable energy sources. Mr. Arnaudov is a member of the Union of Electronics, Electrical Engineering and Telecommunications (CEEC) in Bulgaria, a member of EUREL.
Professor Hans-Günter Eckel
Dr.-Ing. Hans-Günter Eckel
University of Rostock, Rostock, Deutschland
Hans-Günter Eckel had over ten years of experience in the development of traction converters with Siemens, Nuremberg, when he joined the University of Rostock in 2008, where he is a Professor for Power Electronics and Electrical Drives. His research activities include power semiconductors and inverter technology for high power drives and energy applications.
Mr. Yuba Raj Kafle
M.Eng. Yuba Raj Kafle
Macquarie University, Sydney, Australien
Yuba Raj Kafle was born in Chitwan District, Nepal in 1983. He received his B.E. from the Tribhuvan University, Nepal, and Master?s degree from Xi?an Jiaotong Univeristy, China in 2006 and 2013 all in Electrical Engineering. He is currently a PhD student in the School of Electrical Engineering, Macquarie University, Australia. His current research interests include solid state transformer, grid connected photovoltaic inverters, and impedance source converters.
M.Eng. Malvika Kamat
Technology Network Allgäu, Memmingen, Deutschland
Malvika Kamat received Master's degree in Electrical Engineering from Kempten University of Applied Sciences in October 2017. She is currently working as a Research Assistant in Technologie Netzwerk Allgäu (TNA), Memmingen. Her research interests lie in soft-switched DC/DC converters for inductive power transfer systems.
M.Eng. Tom Ribarich
Navitas Semiconductor, El Segundo, USA
25+ years working in Power Electronics IndustryExperience includes lighting and power supply applications and controllers40+ patentsNumerous conference papers and technical articlesCurrently Sr. Director of Engineer Systems at Navitas Semiconductor working on GaN Power ICs
Mr. Adil Salman
Adil Salman
Wolfspeed, Durham, USA
Adil Salman received the B.S. degree in Electronics Engineering from NFCIET Multan, Pakistan, in 2011 and the M.S. degree in Electrical Engineering from The University of Nottingham, UK, in 2013.
He stated his career in power electronics industry with AstrodyneTDI (Previously known as: TDI Power), Hackettstown, NJ, where he was involved in the design and development of LLC resonant and flyback converters for medical, automotive and aerospace industry. In 2017, he joined CREE Inc., Durham, NC, where he is working as a Product Marketing Engineer to support SiC Mosfets and Diodes product line.
Prof. Dr.-Ing. Burkhard Ulrich
Baden-Wuerttemberg Cooperative State University Stuttgart, Horb am Neckar, Deutschland
Burkhard Ulrich received a Dipl.-Ing. (FH) in electronics engineering from University of Applied Sciences Reutlingen (FH Reutlingen), and the Dr.-Ing. degree in electrical engineering from Dresden University of Technology (TU Dresden) in 2009. From 2004 - 2011 he was with Siemens Munich and Stuttgart, working on power electronics and switch mode power supplies. Since 2011 he is a professor at the engineering department of Baden-Wuerttemberg Cooperative State University Stuttgart Campus Horb (DHBW Stuttgart Campus Horb).
Mr. Stoyan Vuchev
M.Sc. Stoyan Vuchev
Technical University of Sofia, Sofia, Bulgarien
Stoyan Vuchev has received B.S. and M.Sc degrees in Electronics at the Technical university of Sofia where he continues his studies as a PhD student. His interests include high-efficiency power electronic converters for industrial and renewable energy applications, as well as, fast EV charging, which is the topic of his PhD thesis.