External Network Model Tracking Using Phasor Measurements
Event details
| Date | 07.11.2013 |
| Hour | 14:00 › 15:00 |
| Speaker |
Prof. Ali Abur - Northeastern University Boston, MA, USA Bio: Ali Abur obtained his B.S. degree from Orta Dogu Teknik Universitesi, Ankara, Turkey in 1979 and both his M.S. and Ph.D. degrees from the Ohio State University in 1981 and 1985 respectively. He was a faculty member at Texas A&M University until November 2005 when he joined the faculty of Northeastern University as a Professor and Chair of the Electrical and Computer Engineering Department. His research and educational activities have been in the area of power systems. He is a Fellow of the IEEE for his work on power system state estimation. He co-authored a book and published widely in IEEE journals and conferences. He was on the Editorial Board of IEEE Transactions on Power Systems and Power Engineering Letters during 1999-2011. He is an IEEE PES Distinguished Lecturer. |
| Location | |
| Category | Conferences - Seminars |
Abstract: Phasor measurements are quickly populating the transmission substations and creating new opportunities as well as some challenges for power system operators and design engineers. In this talk we will describe the utilization of phasor measurements for the specific application of state estimation that we have investigated in the recent years. One of the main features of phasor measurements that distinguish them from SCADA counterparts is their time-stamps, making it possible to directly measure the phase angles of bus voltages at a high scan rate of 30 or more times a second. Noting that SCADA scans are typically every few seconds, the phasor measurement scan rate opens up possibilities of near real-time tracking, prediction of both the system states as well as network model. Use of phasor measurements also simplifies the estimation formulation which in turn also facilitates implementation of some alternative robust estimation methods which have so far not been widely considered due to their computational disadvantages when applied to SCADA measurements. Use of phasor measurements also enables utilization of modal domain solutions paving the way to simple extension of estimation procedures to unbalanced multi-phase power grid monitoring. Finally, we note some results on the use of phasor measurements at area boundaries and formulation of a sparse estimation problem in order to detect and identify major line outages in external network model. Such unreported outages are known to have a significant impact the static security analysis results. The talk will include numerical examples to illustrate the discussed procedures and solutions when applied to typical power systems.
Practical information
- General public
- Free
Organizer
- Prof. Mario Paolone, host of the speaker
Prof. Giovanni De Micheli, EE Director
Prof. Jean-Ph. Thiran, EDEE Director