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Electronics
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Mathematical Methods for Power Converters EMI Modeling
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Mathematical Methods for Power Converters EMI Modeling

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (15 July 2021) | Viewed by 2568

Special Issue Editor

Dr. Diego Bellan

E-Mail Website
Guest Editor
Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
Interests: power quality issues and transformation methods for power converters and power systems; statistical signal processing; statistical modeling of radiated susceptibility and crosstalk of transmission lines
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Power electronic converters play a crucial role in modern electrical power systems. The increasing complexity of power systems requires strict compliance of power converters with conducted electromagnetic interference (EMI) specifications. Many contributions in the relevant literature can be found about black-box modeling, measurement, and mitigation techniques of EMI in power converters.

EMI analysis in terms of rigorous circuit theory and proper mathematical methods, however, is still a challenging point, especially for three-phase power converters.

This Special Issue will collect innovative contributions focused on circuit modeling and mathematical methods for rigorous theoretical analysis of EMI in power converters. The main scope is producing significant advancement in the basic knowledge of theoretical aspects related to EMI generation and propagation. Topics of interest include, but are not limited to the following:

  • Circuit modeling of EMI sources and propagation paths;
  • Mathematical methods for EMI analysis (e.g., transformation methods, modal analysis, statistical techniques);
  • Differential and common-mode noise generation, conversion, and propagation;
  • Specific methodologies for EMI analysis in three-phase power converters.

Dr. Diego Bellan
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • EMI modeling and analysis
  • Transformation methods and modal analysis
  • Differential and common-mode noise
  • EMI in three-phase power converters

Published Papers (1 paper)

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Research

20 pages, 5257 KiB  
Article
Circuit Modeling and Statistical Analysis of Differential-to-Common-Mode Noise Conversion Due to Filter Unbalancing in Three-Phase Motor Drive Systems
by Diego Bellan
Electronics 2020, 9(10), 1612; https://doi.org/10.3390/electronics9101612 - 01 Oct 2020
Cited by 4 | Viewed by 2156
Abstract
This work deals with circuit modeling of noise mode conversion due to system asymmetry in a three-phase motor drive system. In fact, it is well-known that in case of system asymmetry (e.g., slightly asymmetrical LC filter parameters), differential-mode noise can convert into common-mode [...] Read more.
This work deals with circuit modeling of noise mode conversion due to system asymmetry in a three-phase motor drive system. In fact, it is well-known that in case of system asymmetry (e.g., slightly asymmetrical LC filter parameters), differential-mode noise can convert into common-mode noise, resulting in increased level of conducted electromagnetic interference. This phenomenon has been observed with measurements and reported in previous works, but a clear and rigorous analytical description is still a challenging point. The main novelty proposed in the paper is a rigorous analytical description of differential-to-common-mode noise conversion based on the Clarke transformation and the eigenvalue analysis. In particular, the magnitude and the frequency location of the differential-mode resonances injected into the common-mode circuit are derived in closed form. Moreover, since system asymmetry is usually uncontrolled (e.g., component tolerance and parasitic elements), a statistical analysis is also presented by treating the parameters of the LC filter as random variables. Thus, a second contribution proposed in the paper is the analytical derivation in closed form of the probability density function, the mean value, and the standard deviation of the random frequency location of the resonance peaks injected into the common-mode circuit. The importance of the analytical results derived in the paper is two-fold. First, a deep theoretical understanding of the phenomenon in terms of circuit theory concepts is achieved. Second, the impact of differential-to-common-mode noise conversion is described in quantitative terms. Thus, the obtained analytical results can be used to predict or explain the noise conversion impact on the frequency-domain measurements of common-mode currents. Theoretical derivations are validated through a time-domain Simulink implementation of a three-phase motor drive system, and a frequency-domain analysis through the discrete Fourier transform. Full article
(This article belongs to the Special Issue Mathematical Methods for Power Converters EMI Modeling)
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