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Electromagnetic Compatibility and Power Electronics in Power Systems

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A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F3: Power Electronics".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 5617

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Special Issue Editors

Dr. Xinglong Wu

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Guest Editor

Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, 20133 Milan, Italy
Interests: electromagnetic compatibility (EMC) ; circuit and electromagnetic modelings of power electronic devices; filter design; transmission line theory; statistical analysis

Prof. Dr. Flavia Grassi

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Guest Editor

Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, 20133 Milan, Italy
Interests: electromagnetic compatibility (EMC); distributed parameter circuit modeling; statistical techniques; characterization of measurement setups for EMC testing; application of the powerline communications technology in ac and dc lines

Special Issue Information

Dear Colleagues,

The application of power electronic devices in power systems results in a complex electromagnetic (EM) environment in which electromagnetic compatibility (EMC) issues occur. On the one hand, fast-switching devices are major sources of electromagnetic interference (EMI), which can propagate along power lines and interfere with communications devices in the power network. On the other hand, smart grids require a huge number of power electronics and communication devices to operate. Compared to conventional power machines, electronic devices, as well as power electronic components themselves, are more sensitive to EMI. Therefore, in modern power systems, the EM environment has become more severe, while EM susceptibility margins have become smaller.

This Special Issue calls for contributions (new research results and/or reviews) focusing on electromagnetic compatibility issues and related solutions in modern power systems.

Topics of interest for this Special Issue include, but are not limited to:

Full-wave and circuit modeling techniques for power electronic devices;
EMI propagation analysis in power systems;
Unit-level or system-level EMC evaluations in power systems;
Statistical EMC analysis in power electronics systems;
Electromagnetic coexistence between power electronics devices and communications systems;
EMC analyses in smart buildings;
Filter design techniques;
EM shielding and grounding strategies for power electronics systems;
Measurement and test methods for EMC evaluations of power electronics systems;
Electromagnetic pulse, intentional EMI, and lightning analyses in power systems.

Dr. Xinglong Wu
Prof. Dr. Flavia Grassi
Guest Editors

Manuscript Submission Information

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Keywords

EMC
power electronics
power systems
EMI
filter design
full-wave models
circuit models
shielding
renewable energy
smart buildings
smart grids
microgrids
grounding
transmission lines
EM protection methodologies

Published Papers (4 papers)

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Research

15 pages, 2551 KiB

Open AccessArticle

The Effect of Spread Spectrum Modulation on Power Line Communications

by Seda Ustun Ercan, Angel Pena-Quintal and Dave Thomas

Energies 2023, 16(13), 5197; https://doi.org/10.3390/en16135197 - 6 Jul 2023

Cited by 3 | Viewed by 1209

Abstract

Interference in Power Line Communication (PLC) is examined in this paper. PLC is a wired communication technology that provides communication and data transmission over the existing electrical network. It uses the electrical wiring in buildings or the electrical grid to transmit data signals between devices, rather than using dedicated communication cables or wireless signals. Many applications employ PLC technologies, which have the benefit of leveraging existing power connections for both power and data transfer, reducing cost and complexity. These interactions may be observed in contemporary smart grids and automobile power networks, where lengthy cables, switching power supplies and communication links all work together but exacerbate Electromagnetic Interference (EMI) problems. This research examines the effects of spread spectrum methods used to reduce EMI from power converters on PLC systems. Spread Spectrum Modulation (SSM) and its three variants, Sine, Random and Sawtooth, are frequently employed to meet the requirements of electromagnetic compatibility, however, there are some repercussions that may be detrimental to the converter or the rest of the electrical network. These outcomes occur for various modulation algorithm settings and at various frequencies. Measurements are made utilising the Frame Error Rate (FER) value provided by the PLC link system to ascertain the interference produced by a Silicon Carbide (SiC)-based DC-DC converter in order to investigate these concerns and standardise an assessment approach. To examine the effect of SSM on reducing EMI in the frequency domain, the peak index of a CISPR-16 EMI receiver is used. Full article

(This article belongs to the Special Issue Electromagnetic Compatibility and Power Electronics in Power Systems)

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12 pages, 3617 KiB

Open AccessArticle

The Statistical Characteristics Analysis for Overvoltage of Elevated Transmission Line under High-Altitude Electromagnetic Pulse Based on Rosenblatt Transformation and Polynomial Chaos Expansion

by Zheng Liu, Dongwei Hei, Congguang Mao, Chuanbao Du, Xin Nie, Wei Wu and Wei Chen

Energies 2023, 16(12), 4622; https://doi.org/10.3390/en16124622 - 10 Jun 2023

Viewed by 849

Abstract

A High-Altitude Electromagnetic Pulse (HEMP) could induce very fast transient overvoltage (VFTO) with nanosecond level rise time and mega-volt amplitude, which severely threatens the electrical devices connected to the elevated transmission line. An elevated transmission line with different locations may suffer different levels of HEMP threat since the dip angle could influence the polarization of the HEMP wave. The combination of Rosenblatt Transformation and Polynomial Chaos Expansion (R-PCE) is introduced in this paper. With this method, the efficiency of calculating the overvoltage of an elevated transmission line under HEMP is improved, speeding up 24.75 times. The influence of different factors (dip angle, elevated height, and earth conductivity) on the overvoltage of elevated transmission lines applied in power systems is calculated and analyzed. The numerical result shows with 99.9% confidence that the overvoltage would be over 3.7 MV of amplitude and 6.7 × 10¹⁴ V/s of voltage derivative, which is much more rigorous than a lighting pulse. We also find that elevated transmission lines may have a larger HEMP threat in a small dip angle area. The corresponding data are shown at the end of the paper, which could be useful for relative researchers in pulse injection experiments and reliable evaluation. Full article

(This article belongs to the Special Issue Electromagnetic Compatibility and Power Electronics in Power Systems)

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15 pages, 17683 KiB

Open AccessFeature PaperArticle

Behavioral Model of G3-Powerline Communication Modems for EMI Analysis

by Abduselam Hamid Beshir, Simone Negri, Xinglong Wu, Xiaokang Liu, Lu Wan, Giordano Spadacini, Sergio Amedeo Pignari and Flavia Grassi

Energies 2023, 16(8), 3336; https://doi.org/10.3390/en16083336 - 9 Apr 2023

Cited by 2 | Viewed by 1301

Abstract

G3-powerline communication (G3-PLC) is a robust communication protocol originally developed for smart metering in low-voltage power distribution networks. Modeling G3-PLC modems is an essential task to investigate electromagnetic compatibility (EMC) issues related to the coexistence of the PLC signal with the high-frequency noise affecting low-voltage networks, mainly due to the presence of power converters and non-linear loads. Since detailed information on the modem internal architecture is usually not available to the end-user, this work investigates the possibility of developing behavioral (black-box) models of G3-PLC modems, whose parameters can be estimated starting from measurements carried out at the modem output ports. To this end, suitable test benches are set up and used for model-parameter extraction as well as for validation purposes. Experiments have proven that an equivalent representation involving non-ideal voltage sources (i.e., in terms of extended Thevenin/Norton equivalent circuits) is no longer feasible for the transmitting modem, since the presence of a closed-loop control system invalidates the linearity assumption. Hence, while the receiving modem is still modeled through an impedance matrix (since it behaves as a linear device), an alternative representation is proposed for the transmitting modem, which resorts to the use of two ideal voltage sources in accordance with the substitution theorem. Experimental results prove that the proposed modeling strategy leads to satisfactory predictions of the currents propagating on the PLC system in the frequency interval of interest. Hence, it could be used in combination with high-frequency models of the other components in the network to investigate EMC and the coexistence of the PLC signal with the high-frequency noise generated by power converters. Full article

(This article belongs to the Special Issue Electromagnetic Compatibility and Power Electronics in Power Systems)

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20 pages, 4804 KiB

Open AccessFeature PaperArticle

Experimental Study on the Transient Disturbance Characteristics and Influence Factors of Pantograph–Catenary Discharge

by Mengzhe Jin, Man Hu, Hao Li, Yixuan Yang, Weidong Liu, Qingyuan Fang and Shanghe Liu

Energies 2022, 15(16), 5959; https://doi.org/10.3390/en15165959 - 17 Aug 2022

Cited by 6 | Viewed by 1265

Abstract

The transient electromagnetic disturbance generated by arcing discharge between the pantograph and catenary can pose a significant risk to the safe operation of electrified railways. In order to better comprehend its properties, a pantograph–catenary discharge generating device is designed to simulate the discharge phenomenon with moving electrodes in this experimental investigation. The effects of the applied voltage, the gap distance, and the relative motion between the pantograph and catenary on the time- and frequency-domain features of the discharge current and electromagnetic field are investigated. The variation trends of pulse peak current, rise time, pulse repetition frequency, maximum amplitude, and characteristic frequency in the radiation spectrum are retrieved under varying experimental settings, and the effect mechanisms are derived from the physics of gas discharge. A dynamic discharge test is conducted in this study in order to further understand the effect of electrodes’ relative motion on discharge characteristics. The results indicate that lateral sliding motion of the pantograph along the track has a negligible effect on the transient discharge, whereas a faster vertical approaching motion between the pantograph and catenary generates a larger pulse current peak, a steeper rise front-edge, and a higher radiation intensity. Full article

(This article belongs to the Special Issue Electromagnetic Compatibility and Power Electronics in Power Systems)

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