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Issue:
Earthing schemes in low-voltage microgrid
Author(s):
LI Botong
,
LI Bin
,
LI Yongli
,
YAO Chuang
Pages:
53
-
59
Year:
2013
Issue:
3
Journal:
Electric Power Automation Equipment
Keyword:
系统接地
;
保护接地
;
低压微网
;
杂散电流
;
剩余电流保护器
;
Abstract:
以保证人身安全及设备稳定运行为目标,对低压微网的接地方式进行深入研究和探讨.针对低压微网的系统接地,分析分布式电源的中性线接入的必要性;考虑杂散电流的危害,提出低压微网中同一建筑内的电源中性点接地唯一性的要求;根据低压微网的不同运行方式,制定确保系统内中性点可靠接地的原则.针对低压微网的保护接地,分析传统低压配电网的TN和TT接地方式中保护接地在低压微网中的适用性;针对低压微网中分布式电源和用电设备的特点,提出混合接地方式并对其辅助设备配置方案进行研究.
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