Speaker: Prof. K R Padiyar, Department of Electrical Engineering, Indian Institute of Science Bangalore
Date & Time: November 13, 2006, 4.00 p.m.
Venue: L-14, Lecture Hall Complex
ABSTRACT
The application of Liapunov methods for direct transient stability evaluation of power systems started about 40 years ago. However, the progress was slow until the introduction of structure preserving models, energy functions and use of controlling UEP or Potential Energy Boundary Surface (PEBS) in the determination of the critical energy which is a measure of the stability boundary. Energy margins and their sensitivities have been suggested for planning and preventive control. Recent developments involve applications for emergency control(remedial measures) using controlled system separation, adaptive relaying and discrete control of FACTS devices.
In this lecture, the applications of energy functions are reviewed .The recent work at I.I.Sc. that involves applying energy functions for on-line detection of loss of synchronism and developing discrete control strategies for FACTS controllers(including UPFC) is presented with case studies.
| Close |