Integration of long transmission lines in large-scale dq0 dynamic models

Juri Belikov, Yoash Levron

Research output: Contribution to journalArticlepeer-review


The dq0 transformation is increasingly used today to model distributed sources, complex loads, renewable generators, and power electronics-based devices. This paper presents a dynamic model of long transmission lines that is based entirely on dq0 quantities, and demonstrates how such a model may be integrated with emerging dq0 models of large-scale networks. The model is first developed in the frequency domain and then converted to the time domain, using a state-space representation which inputs and outputs are dq0 signals. The proposed approach may be used to evaluate the stability and dynamic behavior of power systems that include long transmission lines, taking advantage of the dq0 reference frame inherent benefits. This is demonstrated on the basis of a 7-bus network, which shows how long transmission lines influence the network dynamics and stability. The proposed models and examples are provided as a part of an open-source software.

Original languageEnglish
Pages (from-to)1219-1228
Number of pages10
JournalElectrical Engineering
Issue number2
StatePublished - 1 Jun 2018


  • Dynamics
  • Long transmission line
  • Small-signal
  • Stability
  • dq0 model

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Applied Mathematics


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