An On-Line Measurement Approach for EMI Filter Characterization

Szymczyk, Christoph; Nies, Christoph; Bumiller, Gerd

doi:10.1109/isplc52837.2021.9628534

Cited by 6 publications

(3 citation statements)

References 4 publications

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“…The online insertion loss test setup version 2 with Z in and Z L close to power line impedance replicates realistic power grid conditions, thus offering an accurate way of evaluating the PLC filters [47,48].…”

Section: Insertion Lossmentioning

confidence: 99%

“…In Europe, NB-PLC uses Cenelec A, B, C, and D bands (3 kHz up to 148.5 kHz) which is impacted by gaps in the electromagnetic compatibility (EMC) conducted emissions standardization and electromagnetic interferences (EMI). These two topics are the subjects of research articles [4][5][6][7][8][9][10][11][12][13][14][15] and have the attention of The Comité International Spécial des Perturbations Radioélectriques (CISPR) as well as the international electrotechnical commission (IEC). Efforts are underway to address this gap, including proposed changes to standards such as CISPR 16-1-2, CISPR 32, and subsequent IEC standards.…”

Section: Introductionmentioning

confidence: 99%

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Passive Power Line Communication Filter Design and Benchmarking Using Scattering Parameters

Avram

Vasiu

2023

Applied Sciences

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NB-PLC (narrowband power line communication) is a method of data communication that involves superimposing a relatively high-frequency signal (9 kHz to 500 kHz), which contains data, onto the power grid’s low frequency (50 to 60 Hz) signal. While using the existing power grid as a transmission medium is convenient, the power grid was not designed for this purpose, leading to challenges such as conduction emission and infrastructure limitations. To overcome these technical challenges, passive filters are necessary. This article presents the design, simulation (using scattering parameters), and evaluation of an NB-PLC filter by comparing it to commercially available filters. Our proposed design and benchmarking methods enable the accurate prediction of the filter’s behavior in field conditions. After comparing our filter with commercially available filters, we observed that it exhibits superior characteristics. Specifically, our filter has the best insertion loss versus frequency, achieved three times higher attenuation at 50 kHz (−130 dB) compared to the best commercially available filter (−40 dB), and has a power consumption of 0.6 W, which is comparable to the most power-efficient commercial filter (0.5 W). Additionally, our filter has the second best input and output impedance of 3.6 Ω within the frequency range of 35–95 kHz.

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Section: Insertion Lossmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Passive Power Line Communication Filter Design and Benchmarking Using Scattering Parameters

Avram

Vasiu

2023

Applied Sciences

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“…Regarding sub-cycle variations, some previous works present measurements of the impedance behavior within the fundamental cycle. Nevertheless, they are limited to frequencies up to 500 kHz [11], [32], [33] or 1 MHz [34], or analyze indoor power line channels [18], [23], [35].…”

mentioning

confidence: 99%

Measurement System of the Mean and Sub-Cycle LV Grid Access Impedance From 20 kHz To 10 MHz

Fernández

Gallarreta

González-Ramos

et al. 2023

IEEE Trans. Power Delivery

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This work presents a novel measurement method to characterize long-term and short-term variations of the LV grid impedance from 20 kHz to 10 MHz with configurable time, frequency and amplitude resolutions. The characterization of the grid access impedance in this frequency range is vital for the design and development of NB-PLC and BB-PLC technologies. The measurement system is valid for in-home, indoor cable networks and for the harsh conditions of the LV distribution grid, where a large input dynamic range and strong protection mechanisms against high-amplitude impulsive noises are required. Its accuracy is evaluated by comparison to a precision impedance meter for a wide set of impedance values, obtaining a maximum deviation within ± 8 %.First trials of the grid impedance sub-cycle variations caused by commercial appliances and for frequencies assigned to BB-PLC are also presented in this paper. The results demonstrate that the grid impedance is highly time-varying within the mains cycle, both in amplitude and phase. These first outcomes point at the need to evaluate the accumulative effects of sub-cycle variations in the LV distribution grid, so that equalization algorithms in the next BB-PLC technologies could be developed to overcome the impact of these fast variations.

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A review on the empirical characterization of the low voltage distribution grid as a communication channel for power line communications

González-Ramos,

Gallarreta,

Angulo

et al. 2023

Sustainable Energy, Grids and Networks

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An On-Line Measurement Approach for EMI Filter Characterization

Cited by 6 publications

References 4 publications

Passive Power Line Communication Filter Design and Benchmarking Using Scattering Parameters

Passive Power Line Communication Filter Design and Benchmarking Using Scattering Parameters

Measurement System of the Mean and Sub-Cycle LV Grid Access Impedance From 20 kHz To 10 MHz

A review on the empirical characterization of the low voltage distribution grid as a communication channel for power line communications

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