Mitigation of erroneous oscillations in electromagnetic transient simulations using analogue filter theory

Anderson R. J. Araújo; Sérgio Kurokawa; Ailton A. Shinoda; Eduardo C. M. Costa

Mitigation of erroneous oscillations in electromagnetic transient simulations using analogue filter theory

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Author(s): Anderson R. J. Araújo ¹ ; Sérgio Kurokawa ¹ ; Ailton A. Shinoda ¹ ; Eduardo C. M. Costa ²
- Affiliations: 1: Department of Electrical Engineering, Faculty of Engineering of Ilha Solteira, State University of São Paulo – FEIS/UNESP, Ilha Solteira, Brazil ;
  2: Department of Energy and Automation Engineering, Polytechnic School of the University of São Paulo – PEA/EPUSP, São Paulo, Brazil
Source: Volume 11, Issue 1, January 2017, p. 41 – 48
DOI: 10.1049/iet-smt.2016.0166 , Print ISSN 1751-8822, Online ISSN 1751-8830

Received 18/04/2016, Accepted 31/08/2016, Revised 22/08/2016, Published 01/01/2017

An efficient and simplified procedure is proposed for the reduction of high-frequency oscillations and erroneous magnitude peaks in electromagnetic transient simulations in power transmission systems modelled by the lumped electric parameters approach. This procedure consists of the inclusion of analogue filters in the equivalent representation of multiconductor transmission lines without modifying its electromagnetic propagation characteristics. The analogue filter modelling is conducted as a function of the line length and line parameters. The proposed simulation methodology is applied directly in the line modelling, which means that the filtering/correction process represents a real-time process during simulations, without post-processing filtering techniques using digital filters or variations in the solution methods. The results obtained directly in the time domain by the proposed modelling/simulation methodology are compared with simulations obtained from well-established line models using the numerical Laplace transform and the Bergeron method.

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Mitigation of erroneous oscillations in electromagnetic transient simulations using analogue filter theory

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