DocumentCode :
329887
Title :
Coordinated steady-state voltage stability assessment and control
Author :
Makarov, Yuri V. ; Wu, Qiang ; Hill, David J. ; Popovic, Dragana H. ; Dong, Zhaoyang
Author_Institution :
Dept. of Electr. Eng., Sydney Univ., NSW, Australia
Volume :
1
fYear :
1997
fDate :
11-14 Nov 1997
Firstpage :
248
Abstract :
A framework for mid and long term small disturbance voltage stability assessment and control with dissimilar controls is presented. The parameter space includes parameters for loads, capacitor support and tap changing transformers. A general method is used to locate all the small disturbance characteristic points which contains saddle-node bifurcation, Hopf bifurcation and minimum damping points. The distances from the operating point to the global and/or local closest points in stability boundaries are used as security indices. A new function, defined in terms of multiple (local) minimum distances and the safe distance needed, is used to evaluate the security margin and find the most effective control actions to increase the security margin. All these methods are tested and illustrated in a given example system
Keywords :
power system control; Hopf bifurcation; capacitor support; control design; coordinated steady-state voltage stability assessment/control; load parameters; minimum damping points; operating point; parameter space; power systems; saddle-node bifurcation; safe distance; security indices; security margin; small disturbance characteristic points; tap changing transformers;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Advances in Power System Control, Operation and Management, 1997. APSCOM-97. Fourth International Conference on (Conf. Publ. No. 450)
Print_ISBN :
0-85296-912-0
Type :
conf
DOI :
10.1049/cp:19971839
Filename :
726878
Link To Document :
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