Grounding and safety considerations for residential DC microgrids

T. Oliveira, A. S. Bolzon, P. Donoso-Garcia
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引用次数: 41

Abstract

DC-based microgrids are promising solutions to enhance the energy efficiency, reliability and safety of residential and commercial buildings, as well as to provide more effectively higher penetration of renewable energy resources into the electrical grid. However, despite the great effort that is being done by electronics, telecom/datacom and buildings sector companies and entities upon the standardization of DC distribution networks, the lack of practical experience and safety issues regarding the utilization of DC powered buildings still works against DC adoption. This paper aims to contribute with the discussion about residential DC microgrid safety by evaluating system grounding schemes and its effects on personal safety and endurance to ground faults.
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住宅直流微电网的接地和安全考虑
基于华盛顿特区的微电网是一种很有前途的解决方案,可以提高住宅和商业建筑的能源效率、可靠性和安全性,并更有效地提高可再生能源进入电网的渗透率。然而,尽管电子、电信/数据通信和建筑行业的公司和实体在直流配电网络的标准化方面做出了巨大的努力,但在使用直流供电的建筑方面缺乏实践经验和安全问题仍然阻碍着直流的采用。本文旨在通过评估系统接地方案及其对人身安全和耐受接地故障的影响,为讨论住宅直流微电网的安全性做出贡献。
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