Protection and grounding methods in DC microgrids: Comprehensive review and analysis

被引：49
作者：
Jayamaha, D. K. J. S. [1 ]
Lidula, N. W. A. [1 ]
Rajapakse, A. D. [2 ]
机构：
[1] Univ Moratuwa, Dept Elect Engn, Katubedda 10400, Moratuwa, Sri Lanka
[2] Univ Manitoba, Dept Elect & Comp Engn, Winnipeg, MB R3T 5V6, Canada
来源：
RENEWABLE & SUSTAINABLE ENERGY REVIEWS | 2020年 / 120卷 / 120期
关键词：
DC microgrids; Fault current interruption; Fault detection; Grounding; Protection; DISTRIBUTED ENERGY-RESOURCES; FAULT-DETECTION; TRANSMISSION-LINE; WAVELET TRANSFORM; CIRCUIT-BREAKER; NEURAL-NETWORK; POWER-SYSTEMS; DESIGN; CONVERTERS; LOCATION;
D O I：
10.1016/j.rser.2019.109631
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
DC microgrids (DCMGs) presents an effective means for the integration of renewable-based distributed generations (DGs) to the utility network. DCMGs have clear benefits such as high efficiency, high reliability, better compatibility with DC sources and loads, and simpler control, over its AC equivalent system. While advantages of DCMGs are considerable, of particular concern are the associated protection challenges, such as lack of phasor and frequency information, rapid fault current rise, breaking DC arc and certainly the lack of standards, guidelines and practical experience. This paper presents an extensive review of fault characteristics of DCMGs and the protection challenges. Innovative protection techniques proposed to solve these issues, and comparative analysis of these techniques are presented outlining the strengths and drawbacks of each. Possible improvements to the current technologies and future directions for research, which could enhance the protection of DCMGs, are outlined in this paper.
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页数：21
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