2012 – Montreal, QC, Canada

  • October 14-17, 2012 – Montreal, QC, Canada (Delta Centre-Ville)

Program:

Report on CEIDP 2012:

Proceedings:

Whitehead Lecturer:

  • 2012 Whitehead Memorial Lecturer: Dr. Christian Laurent, Université de Toulouse & CNRS, France.

TitleCharge dynamics in polymeric materials and its relation to electrical ageing

Abstract— Electrical Engineering should face the challenge of developing a mature approach in insulation design. Modeling charge transport and linking charge dynamics with dissipative processes responsible for electrical ageing are crucial as regards this objective. Such an approach is exemplified here for polyethylene-based materials by introducing two models describing bipolar Space Charge Limited Current in transient and steady states. They rely on two classical descriptions of the distribution function of the energy levels of trap states – single trapping level or exponential distribution. Their predictions are discussed as regards the experimental behavior. They notably highlight the importance of recombination processes in explaining the sigmoidal shape of the steady-state current-voltage characteristic and explain the development of oscillatory charge packets. The energetic features of charge dynamics is considered through the recombination of charges leading to electroluminescence. The spectral analysis of the emitted light advocates the existence of massive chemical/physical degradation in the electrical regime where recombination is a major factor of the Space Charge Limited Current (SCLC).

Dr. Christian Laurent short Bio: Christian Laurent (Fellow, IEEE) was born in Limoges, France, in 1953. He studied solid-state physics at the National Institute for Applied Sciences, Toulouse, France, where he received the Engineering degree in physics in 1976. He joined the Electrical Engineering Laboratory, Paul Sabatier University, in 1977 to study dielectrics and electrical insulation in the context of electrical engineering. He focused on the study of physical processes linked to aging and breakdown of solid insulation—electrical treeing, partial discharge phenomena and induced degradation, and water treeing—which were the topics of his Doctorate degrees in engineering and physics in 1979 and 1984, respectively. In 1985, he spent one year as a Post-Doctoral Fellow with the IBM Almaden Research Center, San Jose, CA, USA, where he studied the magnetic and electrical properties of plasma-polymerized thin films for data storage applications.,He joined the National Centre for Scientific Research (CNRS), Toulouse, in 1981. He concentrated on the statistics of thin-film breakdown and high field phenomena (both organics and inorganics). He then developed a new approach to the electrical aging of polymeric materials based on the analysis of electroluminescence emitted by the materials, and developed complementary innovative techniques for the understanding of the mechanisms at play during ageing and breakdown. He has served as Director of LAPLACE, Toulouse, from 2007 to 2016, as Director of one of the four research poles of the University of Toulouse, Toulouse, from 2007 to 2011, and finally as Vice Chairperson Science of the University of Toulouse from 2016 to 2018. He is currently Emeritus Researcher at CNRS.

  • 2012 CEIDP Whitehead Lecturer Article on IEEE Xplore: Click Here

Executive Committee:

  • Mahmoud Abou-Dakka, Conference Chair, National Research Council of Canada, CANADA
  • Michel Fréchette, Vice Chair / Treasurer, Institute of Research of Hydro-Quebec, CANADA
  • Enis Tuncer, Technical Program Committee Chair, GE Global Research Center, USA
  • Frank Hegeler, Conference Secretary, Naval Research Laboratory, USA
  • Dominique Mary, Publication and Publicity Committee Chair, Université Paul Sabatier, FRANCE
  • V. Rodolfo Garcia-Colon, Nominating Committee Chair, Instituto de Investigaciones Electricas, MEXICO
  • Michel Fréchette, Local Arrangements Chair, Institute of Research of Hydro-Quebec, CANADA
  • Resi Zarb, DEIS Meetings Committee Chair, Qualitrol-Iris Power, CANADA