Survey of Harmonic and Supraharmonic Emission of Fast Charging Stations for Electric Vehicles in China and Germany

Chen, F.; Zhong, Qiu; Zhang, H.; Zhu, Manlu; Müller, Sascha; Meyer, Jörg; Huang, Weibo

doi:10.1049/icp.2021.1927

Cited by 15 publications

(3 citation statements)

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“…In [142], the emissions generated by two different EVs are presented in the frequency domain, pointing out that the conducted emissions depend on both the characteristics of the charger and the EV under study. Other authors [149][150][151] also study the spectral characteristics of NIEs, where the magnitude and dominant frequencies of the emissions generated by twelve, ten, and eight EVCPs, respectively, are determined. [152] show a comparison of the emissions generated by EVCPs in the 2-150 kHz frequency range in a laboratory test stand and in the LV grid, concluding that the grid parameters may affect the amplitude of these emissions.…”

Section: Non-intentional Emissionsmentioning

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: Non-intentional Emissionsmentioning

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

View full text Add to dashboard Cite

show abstract

“…Depending on the characteristics of the respective sources, such emissions may have varied and peculiar time-frequency and impedance behavior. Paired with the relative difficulty of carrying out comprehensive tests, authors have concentrated mostly on relevant types of sources, such as wind parks [ 1 , 2 ], photovoltaic (PV) parks [ 3 , 4 ], electric vehicle (EV) chargers [ 5 , 6 ], and smart lighting (e.g., LED or fluorescent lamps) [ 7 , 8 ], including the various cases of lighting as victims and sources of secondary emissions [ 9 , 10 ].…”

Section: Introductionmentioning

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.

show abstract

“…Depending on the characteristics of the respective sources, such emissions may have a varied and peculiar time-frequency and impedance behavior. Paired to the relative difficulty of carrying out comprehensive tests, authors have concentrated mostly on relevant types of sources, such as wind parks [1,2], photovoltaic (PV) parks [3][4][5], electric vehicle (EV) chargers [6][7][8], and smart lighting (e.g. LED or fluorescent lamps) [9,10], including the various cases of lighting as victims and sources of secondary emissions [11,12].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Supraharmonic Distortion in MV and LV AC Grids and Derived Limits

Mariscotti,

Mingotti

2024

Preprint

View full text Add to dashboard Cite

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 prevent malfunctions and faults in electric assets and in connected loads. Recently, PQ studies have shifted their focus to a specific frequency range, previously not considered problematic, the supraharmonic 2kHz–150kHz range. This range is not populated by the harmonic components of the 50-60 Hz mains fundamental, but a combination of intentional emissions, switching and non-linearity by-products and various types of resonances. This paper aims to provide a detailed analysis of the impact of SH on power network operation and assets, focusing on the most relevant documented negative effects, namely power loss and heating of grid elements, aging of dielectric materials, failure of medium voltage (MV) cable terminations, and interference to equipment and to 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 specific focus on their accuracy.

show abstract

Survey of Harmonic and Supraharmonic Emission of Fast Charging Stations for Electric Vehicles in China and Germany

Cited by 15 publications

References 0 publications

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

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

The Effects of Supraharmonic Distortion in MV and LV AC Grids

The Effect of Supraharmonic Distortion in MV and LV AC Grids and Derived Limits

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