Modelling and identification of nonlinear dynamic loads in power systems

Author

Karlsson, Danlel ; Hill, David J.

Author_Institution

Sydkraft AB, Malmo, Sweden

Volume

9

Issue

1

fYear

1994

fDate

2/1/1994 12:00:00 AM

Firstpage

157

Lastpage

166

Abstract

This paper describes an approach for experimental determination of aggregate dynamic loads in power systems. The work is motivated by the importance of accurate load modelling in voltage stability analysis. The models can be expressed in general as nonlinear differential equations or equivalently realised in block diagram form as interconnections of nonlinear (memoryless) functions and linear dynamic blocks. These components are parameterised by load indexes and time constants. Experimental results from tests in Southern Sweden on the identification of these parameters are described

Keywords

linear differential equations; load (electric); parameter estimation; power system stability; power systems; Sweden; aggregate dynamic loads; block diagram; interconnections; linear dynamic blocks; load indexes; memoryless functions; modelling; nonlinear differential equations; nonlinear dynamic loads; nonlinear functions; parameter identification; power systems; time constants; voltage stability analysis; Aggregates; Differential equations; Load modeling; Power system analysis computing; Power system dynamics; Power system interconnection; Power system modeling; Power system stability; Stability analysis; Voltage;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.317546

Filename

317546