Improving Numerical Accuracy in Time-Domain Simulation for Power Electronics Circuits

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

    Research output: Journal article publicationJournal articleAcademic researchpeer-review

    10 Citations (Scopus)


    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.

    Original languageEnglish
    Article number9400393
    Pages (from-to)157-165
    Number of pages9
    JournalIEEE Open Access Journal of Power and Energy
    Publication statusPublished - 2021


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

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering


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