On influence of load modelling for undervoltage load shedding studies

Author

Arnborg, Stefan ; Andersson, Goran ; Hill, David J. ; Hiskens, Ian A.

Author_Institution

Dept. of Electr. Power Eng., R. Inst. of Technol., Stockholm, Sweden

Volume

13

Issue

2

fYear

1998

fDate

5/1/1998 12:00:00 AM

Firstpage

395

Lastpage

400

Abstract

This paper explores the influence of load models on decisions of undervoltage load shedding in power systems. A controlled load rejection can be used as an emergency countermeasure to avoid widespread blackout when system voltages are unstable. In this paper, dynamic simulations of a small power system using both static and dynamic load models are presented. When using a static load model, the system includes an explicit model of a transformer with load tap changer. The aim is to demonstrate how different load models influence the analysis and calculation of the amount of load needed to be shed to stabilise the system voltage

Keywords

control system analysis computing; electrical faults; load shedding; power system analysis computing; power system control; power system stability; computer simulation; controlled load rejection; dynamic load model; dynamic simulations; emergency countermeasure; load modelling; load tap changing transformer; power systems; static load model; undervoltage load shedding; widespread blackout; Australia; Equations; Load modeling; Power engineering and energy; Power engineering computing; Power system dynamics; Power system modeling; Power system simulation; Senior members; Voltage control;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.667358

Filename

667358