Statistical relationship between RMS and QP spectra of voltage measurements in the 9–150 kHz range

Gallarreta, Alexander; Fernández, Igor; Ritzmann, Deborah; Lodetti, Stefano; Khokhlov, Victor; Vega, David; Wright, P.S.; Meyer, Jan

doi:10.1016/j.epsr.2023.109213

Cited by 6 publications

(2 citation statements)

References 19 publications

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“…The Light-QP relies on the RM-A method to compute the spectral components and implements a digital QP detector to provide the QP values of the measurements. Finally, the Statistical-QP [181], which also relies on the RM-A method, applies a statistical conversion to the RMS spectra in order to estimate the QP values in the distribution grid.…”

Section: Measurement Methods For Emi Above 9 Khzmentioning

confidence: 99%

Communications and Data Science for the Success of Vehicle-to-Grid Technologies: Current State and Future Trends

Uribe-Pérez,

Gonzalez-Garrido,

Gallarreta

et al. 2024

Electronics

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Vehicle-to-grid (V2G) technology has emerged as a promising solution for enhancing the integration of electric vehicles (EVs) into the electric grid, offering benefits, such as distributed energy resource (DER) integration, grid stability support, and peak demand management, among others, as well as environmental advantages. This study provides a comprehensive review of V2G systems, with a specific focus on the role of the communication, as they have been identified as key enablers, as well as the challenges that V2G must face. It begins by introducing the fundamentals of V2G systems, including their architecture, operation, and a description of the benefits for different sectors. It then delves into the communication technologies and protocols in V2G systems, highlighting the key requirements in achieving reliable and efficient communication between EVs and the different agents involved. A comprehensive review of communication standards is described, as well as the main communication technologies, which are evaluated in terms of their suitability for V2G applications. Furthermore, the study discusses the challenges and environmental implications of V2G technology, emphasizing the importance of addressing strong and reliable communications to maximize its potential benefits. Finally, future research directions and potential solutions for overcoming challenges in V2G systems are outlined, offering useful insights for researchers, policymakers, and administrations as well as related industry stakeholders.

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Section: Measurement Methods For Emi Above 9 Khzmentioning

confidence: 99%

Communications and Data Science for the Success of Vehicle-to-Grid Technologies: Current State and Future Trends

Uribe-Pérez,

Gonzalez-Garrido,

Gallarreta

et al. 2024

Electronics

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“…Its use is supported by CISPR and generally by RF EMC standards as an emissions weighting for a hypothetical jamming of analog radio transmissions for broadcasting purposes (no longer so widely used in the modern world of digital communication);its output being dependent on the time distribution of the spectral characteristics of the incoming signal, it can hardly be compared to a simpler rms or peak detector, as commented in [ 78 ] for impulsive emissions originating from pantograph electric arcs. Nonetheless, its application is still mandatory and has recently attracted a lot of effort to devise an efficient time-domain implementation [ 79 , 80 ]. In general, the representation of time variability of disturbance in the short and long term is challenging for a matter of balancing accuracy and time granularity with the compactness of the representation.…”

Section: Lessons Learned and Compatibility Levels For The Sh Intervalmentioning

confidence: 99%

The Effects of Supraharmonic Distortion in MV and LV AC Grids

Mariscotti,

Mingotti

2024

Sensors

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Since the integration of electronic devices and intelligent electronic devices into the power grid, power quality (PQ) has consistently remained a significant concern for system operators and experts. Maintaining high standards of power quality is crucial to preventing malfunctions and faults in electric assets and connected loads. Recently, PQ studies have shifted their focus to a specific frequency range, previously not considered problematic—the supraharmonic 2 kHz to 150 kHz range. This range is not populated by easily recognizable harmonic components of the 50 Hz to 60 Hz mains fundamental, but by a combination of intentional emissions, switching non-linearities and byproducts, and various types of resonances. This paper aims to provide a detailed analysis of the impact of supraharmonics (SHs) on power network operation and assets, focusing on the most relevant documented negative effects, namely power loss and the heating of grid elements, aging of dielectric materials, failure of medium voltage (MV) cable terminations, and interference with equipment and power line communication (PLC) technology in particular. Under some shareable assumptions, limits are derived and compared to existing ones for harmonic phenomena, providing a clear identification of the primary issues associated with supraharmonics and suggestions for the standardization process. Strictly related is the problem of grid monitoring and assessment of SH distortion, discussing the suitability of normative requirements for instrument transformers (ITs) with a specific focus on their accuracy.

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