Title :
Different types of voltage instability
Author :
Lachs, W.R. ; Sutanto, D.
Author_Institution :
New South Wales Univ., Kensington, NSW, Australia
fDate :
5/1/1994 12:00:00 AM
Abstract :
In reported incidents, different types of voltage instability have occurred and each has presented in a quite distinct manner. To better acquaint power engineers with the different types, two incidents are described as each commenced with a type of system voltage instability and culminated with radial voltage instability. In neither of these two incidents were operators fully aware of the situation. The analysis of the incidents provided in this paper can give important operational insights. In particular it shows the value of timely load shedding and the need to allow a 20% margin from the radial voltage stability limit
Keywords :
load shedding; power system control; power system stability; transmission networks; load shedding; power engineering; power system voltage instability; radial voltage instability; stability margin; Air conditioning; Australia; Capacitors; Power engineering and energy; Power system interconnection; Power system stability; Power system transients; Substations; Thermal stability; Voltage control;
Journal_Title :
Power Systems, IEEE Transactions on
