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On dynamic load models for voltage stability studies

IEEE Transactions on Power Systems, ISSN: 0885-8950, Vol: 12, Issue: 1, Page: 293-303
1997
  • 92
    Citations
  • 0
    Usage
  • 18
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    92
    • Citation Indexes
      92
  • Captures
    18

Article Description

Appropriate modelling of dynamic loads is of primary importance in voltage stability studies. The paper deals with the modelling of a load consisting of a static load plus an aggregate of induction motors. The behavior of three simplified models for such a load configuration is compared. The three models are A) a generic non-linear dynamic model of the first order as proposed by Karlsson and Hill, B) a static exponential load plus a dynamic first-order model for the induction motors, C) a static exponential load plus a dynamic third-order model for the induction motors. A power system with a longitudinal structure is chosen as the case-study. It is shown that for the same perturbation (tripping of one of two high-voltage parallel lines) the simulation results are quite different from each other and, in certain cases, only the third-order dynamic model correctly predicts the voltage collapse phenomena at the load bus. An interpretation of the different behavior of the various models is given. © 1996 IEEE.

Bibliographic Details

A. Borghetti; R. Caldon; A. Mari; C. A. Nucci

Institute of Electrical and Electronics Engineers (IEEE)

Energy; Engineering

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