Keynote Speakers / Tutorials

Hulya Kirkici, PhD., Fellow-IEEE

Abstract

Electrical Insulation in Sub-Atmospheric Pressures under High Frequency Applied Fields.
Hulya Kirkici, PhD., Fellow-IEEE
Professor and Chair, Electrical and Computer Engineering
University of South Alabama, Mobile Alabama, USA

Power devices and systems operating in vacuum or sub-atmospheric pressures are more susceptible to partial discharges, corona, volume discharges, or fully developed breakdown due to the partial vacuum conditions. In space/aerospace vehicles, these activities are great concerns and require major design considerations.  Furthermore, space/aerospace power systems operate at voltages higher using switch-mode conversion. In return, higher switching frequencies impose higher stress on dielectrics, than the dc fields, in space/aerospace power systems.  This presentation is an overview of dielectric material fundamentals, including the high voltage electrical insulation of space/aerospace power and high voltage pulsed systems over the years. Also an overview dielectric breakdown of gases and solids under non-uniform, high frequency and high fields applied fields and operated in sub-atmospheric pressures.

Bio

Hulya Kirkici is Professor and Chair of Electrical and Computer Engineering at the University of South Alabama.  She received the B.S. and M.S. in physics from Middle East Technical University (METU), Ankara, Turkey; and the Ph.D. in electrical engineering from Polytechnic University (NYU – Poly), Brooklyn, NY.  Previously, Dr. Kirkici was Professor of electrical and computer engineering at Auburn University (1992-2016), visiting scholar / consultant and Summer Faculty Fellow at the Air Force Research Laboratory – Wright Patterson Air Force Base, (2014-2015), and visiting scientist/engineer at NASA, Marshall Space Flight Center, Huntsville, AL (1999-2000).

Dr. Kirkici’s research interests are in electrical insulation and high-frequency dielectric breakdown in space and aerospace environments, cold plasmas, repetitive pulsed power, and high voltage engineering. She has published over 100 peer-reviewed journal and conference articles and given plenary and invited talks in these related topics over the years nationally and internationally (in USA, Turkey, Japan, South Korea, and China).

Dr. Kirkici is a Fellow of IEEE for “contributions to high frequency, high field dielectric breakdown and electrical insulation for space and aerospace power systems” (class of 2017), a recipient of the IEEE Eric O. Forster Distinguished Service Award, the highest service honor given by the Dielectrics and Electrical Insulation Society (2015), IEEE William G. Dunbar Award “for continuing contribution to high-voltage and high frequency insulation research and engineering education,” (2014) and a recipient of the IEEE Sol Schneider Award “for continuing technical and administrative leadership in the power modulator and high voltage communities,” (2010). 

Dr. Kirkici serves on the IEEE Periodical Review Committee (2016 – present), and PSPB-Strategic Planning Committee (2016-present).  Dr. Kirkici was a Member-at-Large on the IEEE Publication Services and Products Board (2011-2016) and served as Vice President of IEEE Sensors Council (2014-2015), Treasurer and Finance Chair of IEEE PSPB, IEEE Finance Committee (2011-2014), President of IEEE Dielectrics and Electrical Insulation Society (2009 and 2010), and served on many other IEEE units’ and conferences’ boards/committees.

Dr. Kirkici is members of IEEE, American Physical Society (APS), Sigma Xi Scientific Honor Society, Eta Kappa Nu Electrical Engineering Honor Society, and American Association of University Women (AAUW).

Wojciech Koltunowicz, PhD, D.Sc.

Abstract

Increase of Operation Reliability of HV Apparatus through PD Monitoring
Wojciech Koltunowicz, PhD, D.Sc.
Senior Technical Consultant
OMICRON Energy Solutions GmbH, Berlin, Germany

Partial Discharge (PD) monitoring is nowadays a recognized technique for the condition based assessment of the insulation of high voltage (HV) apparatus. Since its massive introduction in the late eighties, different solutions for sensors and acquisition techniques have been proposed, applied and lately acknowledged by international standards. In this presentation, the challenges in continuous PD monitoring of HV power cables, transformers, gas insulated substation and rotating machines will be discussed. In the case of power cables, the presentation deals with continuous monitoring of 420 kV XLPE cable lines applied for buried cables and cables in the underground tunnels. In the case of transformers, the maintenance and operation recommendations based on the results obtained from continuous monitoring on two identical old transmission transformers will be presented. PDs are measured at the bushing measuring taps and in the ultra-high frequency (UHF) range with an antenna installed within the transformer tank. In the case of rotating machines, an automated PD defect classification system, which identifies the type of stator winding insulation defect and its location, implemented in the continuous monitoring system will be described. The last part of the presentation will be dedicated to GIS PD diagnostics, and in particular to the CIGRE recommendations related to the sensitivity check of UHF PD monitoring system. The case studies described in this presentation show that incipient insulation defects can be detected early and their evolution can be monitored supporting the asset managers to derive prompt actions.

Bio

Wojciech Koltunowicz is a Senior Technical Consultant at OMICRON Energy Solutions GmbH in Berlin, Germany since 2007. Prior to that he worked at CESI in Italy, where he was involved in the HV testing and diagnostics of electrical equipment. He received his M.Sc., PhD and D.Sc. degrees in electrical engineering from the Warsaw University of Technology in 1980, 1985 and 2004, respectively. He is convener of CIGRE WG D1.66 “Requirements of Partial Discharge Monitoring Systems for GIS/GIL Systems”. He is a member of CIGRE AG D1.02, WG D1.51 and JWG D1/B3.57. He is also a member of IEC TC42 “High-voltage and high-current test techniques”. He is author of more than a hundred technical and scientific publications.

Announcements

Submission Deadlines

Abstract submission – 30 April 2018

Full paper submission – 10 June 2018

Notification of acceptance – 1 July 2018

Early bird registration – 31 July 2018

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