DocumentCode
2271298
Title
On the role of LTCs in emergency and preventive voltage stability control
Author
Vournas, Costas D.
Author_Institution
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Volume
2
fYear
2002
fDate
2002
Firstpage
854
Abstract
This paper discusses the effect of load tap changers (LTCs) on the voltage stability of a power system and in particular under emergency conditions. This discussion covers LTCs both on the bulk power delivery transformers, which are normally controlled automatically, and the transformers between higher voltage levels, typically EHV/HV autotransformers, that in many cases are controlled manually. An algorithm to determine taps for the latter that will maximize loadability is presented.
Keywords
control system analysis; control system synthesis; power system control; power system dynamic stability; power transformers; voltage control; EHV/HV autotransformers; bulk power delivery transformers; control design; emergency conditions; emergency power system control; load tap changers; loadability limits; power system voltage stability; preventive power system control; voltage collapse scenario; Admittance; Automatic voltage control; Control systems; Power system control; Power system restoration; Power system stability; Power systems; Timing; Transformers; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Power Engineering Society Winter Meeting, 2002. IEEE
Print_ISBN
0-7803-7322-7
Type
conf
DOI
10.1109/PESW.2002.985126
Filename
985126
Link To Document