计及分布式光伏的农村配电台区断零故障分析

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Abstract The access of large-scale distributed photovoltaic will change the topology of low- voltage distribution network and fault characteristics. Three-phase four-wire low-voltage distribution system is prone to neutral conductor broken due to the existence of neutral lines, which greatly affects the safe and stable operation of power grid. First of all,this paper analyzes the theory of neutral conductor broken in the rural low-voltage distribution area which have photovoltaic power supply. The distribution system is simulated by PSCAD/EMTDC to study the influence of three conditions on neutral conductor broken when photovoltaic power is connected upstream, downstream, upstream and downstream both. Finally, it is discussed that the applicability of solving neutral conductor broken with multiple grounding in TT system.

Key words： distributed photovoltaic three-phase four-wire system low-voltage distribution system neutral conductor broken multiple grounding

Received: 29 September 2021

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	HUANG Weida
	LI Tianyou
	HUANG Chaoyi

Cite this article:

HUANG Weida,LI Tianyou,HUANG Chaoyi. Analysis of neutral conductor broken in rural distribution station area considering distributed photovoltaic[J]. Electrical Engineering, 2022, 23(2): 31-35.

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http://dqjs.cesmedia.cn/EN/Y2022/V23/I2/31

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