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A structure-preserving energy function for stability analysis of AC/DC systems

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Abstract

Direct stability analysis ofAC/DC power systems using a structure-preserving energy function (SPEF) is proposed in this paper. The system model considered retains the load buses thereby enabling the representation of nonlinear voltage dependent loads. TheHVDC system is represented with the same degree of detail as is normally done in transient stability simulation. The converter controllers can be represented by simplified or detailed models. Two or multi-terminalDC systems can be considered. The stability analysis is illustrated with a 3-machine system example and encouraging results have been obtained.

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Authors and Affiliations

  1. Department of Electrical Engineering, Indian Institute of Science, 560012, Bangalore, India

    K R Padiyar

  2. Karnataka Regional Engineering College, 574 157, Srinivasanagar, India

    H S Y Sastry

Authors
  1. K R Padiyar
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  2. H S Y Sastry
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Padiyar, K.R., Sastry, H.S.Y. A structure-preserving energy function for stability analysis of AC/DC systems. Sadhana 18, 787–799 (1993). https://doi.org/10.1007/BF03024225

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