Palestrante: Prof. Dr. William A. Chisholm, University of Toronto, Canada

06 de outubro 2015

The proposed seminar will describe an important Smart Grid case study that allowed a significant increase in transmission line thermal rating while ensuring safe electrical clearances below the line.  The specifics will include operational findings from the use of sonar clearance measurements from the ground to infer an average wind speed, in other words using the operating transmission line itself as a hot-wire anemometer with an extremely long (30 km) axis compared to aluminum conductor diameter (28 to 34 mm). The nature of the project involved several disciplines, including meteorology, thermodynamics, multi-span mechanical coupling, data acquisition and human factors training.  The seminar will be presented at an accessible, tutorial level with strong support from field results.  The foundation of the seminar was invited for the first SENEV conference, sponsored by CEMIG in Minas Gerais, Brazil.

Presentation

Dr. William A. Chisholm is a well-known specialist in the effects of adverse weather, including icing, lightning and low wind conditions, on electric power systems.  He joined Ontario Hydro Research Division, in Canada, in 1977 and retired from Kinectrics, a successor company, in 2007. He was named an IEEE Fellow in that same year for contributions to extra high voltage transmission line performance assessment.   He joined the research team at the Université du Québec à Chicoutimi (UQAC) and continues to collaborate on extra high voltage insulation performance in freezing conditions.  Lately he has designed a series of new graduate courses at the University of Toronto.  He has been a long-term IEEE and CIGRE member, with significant contributions to IEEE Standards 1243, 1410, 1783, P1820 and CIGRE Technical Brochures 299, 440, 549, C4.23.  He finished his executive rotation as Chair of the IEEE Power and Energy Society, Transmission and Distribution Committee in 2014.

With Masoud Farzaneh at UQAC, he has co-authored three books and wrote several book chapters:

·       2012, Electrical Design of Overhead Power Transmission Lines, McGraw Hill

·       2009, Insulators for Icing and Polluted Environments, Wiley/IEEE

·       2008, Atmospheric Icing of Power Networks, Springer

·       2012, Electric Power Engineering Handbook, 3rd edition, CRC Press 2005, 2008, 2009

·       Lead author, lightning and grounding chapters, EPRI Red, Blue and Grey books

He prepares a quarterly column, Transient Thoughts, in INMR Magazine.