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

Author:

Azizi Mohammadreza1,Husev Oleksandr2,Veligorskyi Oleksandr1ORCID,Rahimpour Saeed2,Roncero-Clemente Carlos3

Affiliation:

1. Department of Radiotechnic and Embedded Systems, Chernihiv Polytechnic National University, 14027 Chernihiv, Ukraine

2. Department of Electrical Power Engineering and Mechatronics, Tallinn University of Technology, 12618 Tallinn, Estonia

3. Department of Power Electronic and Renewable Energies, University of Extremadura, 06006 Badajoz, Spain

Abstract

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.

Funder

European Union’s Framework Programme for Research and Innovation Horizon 2020

Estonian Research Council

Junta de Extremadura

“ERDF A way of making Europe”

Publisher

MDPI AG

Subject

Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction

Reference79 articles.

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