Modelung and identification of nonlinear dynamic loads in power systems

Daniel Karlsson, David J. Hill

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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 differentici equations or equivalently realised in block diagram form as interconnections of nonlinear (memoryiess) functions and unear dynamic blocks. These components are parameterised by load indexes and time constants. Experimental results from tests in Southern Sweden on the Identificatlon of these parameters are described.

Original languageEnglish
Pages (from-to)157-166
Number of pages10
JournalIEEE Transactions on Power Systems
Issue number1
Publication statusPublished - Feb 1994
Externally publishedYes


  • dynamics
  • Load modelling
  • power systems
  • voltage stability

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