Title:
Application of Transient Signals for Power System
Protection – Challenges and Potential Solutions
Date:
Friday, April 27, 2012 from 2:00pm
Location:
E3-262 EITC Building, University of Manitoba Fort Garry Campus
Speaker:
Athula Rajapakse, Ph.D.
Department of Electrical and Computer Engineering
University of Manitoba
Abstract:
Traditional protection schemes that use Fourier filters to extract fundamental phasor values of currents and voltages have a dead time of one cycle before a change in a signal can be detected. Transient signals that are generated during the faults can be used to develop faster protection solutions that are not adversely affected by CT saturation, power swings, and changes in system fault levels. Despite these advantages, early concepts such as travelling wave based distance protection have suffered from various problems including the bandwidth limitations of sensors and poor reliability, restricting their practical application. We have investigated how some of these issues can be overcome by exploiting the advancements in signal processing, machine learning techniques, and computing power of digital signal processors. This presentation shares some of the research outcomes with particular focus on high speed transient directional protection of transmission lines. Several new applications such as detection of power islands using transient signals, fault location in multi-segment
and multi-terminal HVDC transmission systems, and transient directional protection of distribution feeders with embedded generation will also be briefly discussed.
Speaker Bio:
Athula Rajapakse is an Associate Professor at the Department of Electrical and Computer Engineering of the University of Manitoba. He has B.Sc.(Eng.) degree obtained from the University of Moratuwa, Sri Lanka, M.Eng. degree obtained from the Asian Institute of Technology, Thailand, and Ph.D. degree obtained from the University of Tokyo, Japan. His research interests are in power system protection and integration of renewable generation into distribution grids.
Cost:
This will be a free event.
Contact:
For questions or more information: Jun Cai 474-6419
