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Improving numerical accuracy in time-domain simulation for power electronics circuits

Willy Nzale, Jean Mahseredjian, Xiaopeng Fu, Ilhan Kocar and Christian Dufour

Article (2021)

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Abstract

In time-domain simulations of power system transients, trapezoidal integration with fixed step-size is the most common method due to its accuracy and ease of implementation. Discontinuities occurring within fixed time-step when simulating power electronics circuits, may cause numerical oscillations and errors. Several methods are available in the literature for interpolation and handling of discontinuities. This paper intends to analyze how accuracy is affected by existing techniques for handling discontinuities in time-domain simulations based on the trapezoidal integration method. New algorithms are proposed to improve accuracy.

Uncontrolled Keywords

Accuracy, interpolation, time-domain simulation, trapezoidal integration method

Subjects: 2500 Electrical and electronic engineering > 2500 Electrical and electronic engineering
2500 Electrical and electronic engineering > 2501 Power systems
2500 Electrical and electronic engineering > 2502 Electromagnetics, compatibility and interference
Department: Department of Electrical Engineering
Funders: GRSNG / NSERC, Hydro-Québec, Réseau de Transport d'Électricité (RTÉ), Électricité De France (EDF), Industrial Chair "Multi-frame simulation of transients for large scale power systems - OPAL-RT
PolyPublie URL: https://publications.polymtl.ca/9333/
Journal Title: IEEE Open Access Journal of Power and Energy (vol. 8)
Publisher: IEEE
DOI: 10.1109/oajpe.2021.3072369
Official URL: https://doi.org/10.1109/oajpe.2021.3072369
Date Deposited: 16 Aug 2023 11:13
Last Modified: 05 Apr 2024 14:39
Cite in APA 7: Nzale, W., Mahseredjian, J., Fu, X., Kocar, I., & Dufour, C. (2021). Improving numerical accuracy in time-domain simulation for power electronics circuits. IEEE Open Access Journal of Power and Energy, 8, 157-165. https://doi.org/10.1109/oajpe.2021.3072369

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