A Pearson's Random Walk Method of Estimating the Electromagnetic Emissions of N Parallel Connected Power Electronic Converters

Ballukja, Erjon; Niewiadomski, Karol; Koch, Patrick; Bojarski, Jacek; Evans, Paul; Moonen, Niek; Sumner, Mark; W. P. Thomas, David

Abstract

This article presents a Pearson's random walk approach for modelling the electromagnetic emissions of N parallel connected power electronic converters. For the first time, a methodology that enables testing the random walk approach is presented. This methodology is validated in two ways: firstly, via simulations of a simplified setup consisting of 8 half-bridge power electronic converters. Secondly, it is validated with the use of an experimental setup consisting of 3 dc/dc converters. The verification is done in the complex domain, as well as by comparing the magnitude of the common mode current via the theoretical cumulative distribution function and the empirical cumulative distribution function. Finally, the probability of electromagnetic interference reduction at a specific harmonic of the switching frequency is derived.

Citation

Ballukja, E., Niewiadomski, K., Koch, P., Bojarski, J., Evans, P., Moonen, N., Sumner, M., & W. P. Thomas, D. (2025). A Pearson's Random Walk Method of Estimating the Electromagnetic Emissions of N Parallel Connected Power Electronic Converters. IEEE Transactions on Electromagnetic Compatibility, 67(3), 1004-1015. https://doi.org/10.1109/TEMC.2025.3556297

• Journal Article Type: Article
• Acceptance Date: Feb 27, 2025
• Online Publication Date: Apr 22, 2025
• Publication Date: 2025-06
• Deposit Date: Jul 10, 2025
• Journal: IEEE Transactions on Electromagnetic Compatibility
• Print ISSN: 0018-9375
• Electronic ISSN: 1558-187X
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 67
• Issue: 3
• Pages: 1004-1015
• DOI: https://doi.org/10.1109/TEMC.2025.3556297
• Public URL: https://nottingham-repository.worktribe.com/output/48209072
• Publisher URL: https://ieeexplore.ieee.org/document/10973272