Nonisolated Three-Phase Current DC-Link Buck–Boost EV Charger With Virtual Output Midpoint Grounding and Ground Current Control

Zhang, Daifei; Cao, Danqing; Huber, Jonas; Everts, Jordi; Kolar, Johann W.

doi:10.1109/tte.2023.3282978

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2024

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Cited by 9 publications

(1 citation statement)

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“…The obvious solution in the case of a non-isolated connection is that only one side should be grounded. This means having an IT configuration on the AC side in case the DC side should be grounded, or if grounding in the AC side is mandatory, the DC side should be ungrounded [6,[69][70][71]. Table 5 shows different possible solutions for grounding at the connection point in non-isolated cases.…”

Section: Non-isolated Casementioning

confidence: 99%

Grounding and Isolation Requirements in DC Microgrids: Overview and Critical Analysis

Azizi,

Husev,

Veligorskyi

et al. 2023

Energies

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DC microgrids, along with existing AC grids, are a future trend in energy distribution systems. At the same time, many related issues are still undefined and unsolved. In particular, uncertainty prevails in isolation requirements between AC grids and novel microgrids as well as in the grounding approaches. This paper presents a critical technical analysis and an overview of possible grounding approaches in DC systems and the feasibility of avoiding isolation between AC and DC grids.

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Section: Non-isolated Casementioning

confidence: 99%