Voltage stability estimation based on approximate model and voltage measurement

Author

Brusilowicz, Bartosz ; Szafran, Janusz

Author_Institution

Dept. of Electr. Power Eng., Wroclaw Univ. of Technol., Wroclaw, Poland

fYear

2015

fDate

20-22 May 2015

Firstpage

227

Lastpage

232

Abstract

The paper presents method of voltage stability margin estimation based on approximate model and measurements of the node voltage. The first part contains basic information about Thevenin model and methods of parameters of this model calculation. In second part, method of voltage stability margin estimation using approximate model and measurements of voltage is described. For the simulations, the 14-bus IEEE test model was implemented in ATP-EMTP software. Basing on this model the impact of configuration changes on the variations of Thevenin parameters can be determined. This information and voltage measurements allow to calculating range of voltage stability changes. Additionally, determined Thevenin model was used to calculate variations of stability margin for different types of load.

Keywords

approximation theory; power system stability; voltage measurement; ATP-EMTP software; Thevenin model; approximate model; node voltage measurement; voltage stability margin estimation; Analytical models; Impedance; Load modeling; Mathematical model; Power system stability; Stability analysis; Voltage measurement; Thevenin equivalent; voltage level; voltage stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Power Engineering (EPE), 2015 16th International Scientific Conference on

Conference_Location

Kouty nad Desnou

Type

conf

DOI

10.1109/EPE.2015.7161065

Filename

7161065