摘要
本文主要讨论分布电容对舰船电力系统接地方式选择的影响,分析了舰船电力系统在高电阻接地和谐振接地的方式下分布电容对系统的影响,发现在中压系统中大分布电容的情况下,采用高电阻接地会产生超过有关标准的故障电流。在谐振接地的情况下,需要合理的配置消弧线圈来产生感性电流来抵消系统对地电容产生的容性残流。同时依据具体数据,利用高斯定理对电缆电容进行了估算,与实际结果相吻合。
The impact of distributed capacitance on the choice of grounding mode of shipboard power system is discussed. The impact of distributed capacitance to the system in high resistance grounding and resonant capacitance is analyzed. It is found that under the condition of large distributed capacitance in medium-voltage system, adopting high resistance grounding will produce excess fault current. In the case of resonant grounding, arc suppression coil is equipped to produce reactive current to counteract capacitive residues of ground capacitance. According to specific data, using the gauss theorem, the estimate to cable capacitance is meet actual results.
出处
《船电技术》
2015年第6期51-53,共3页
Marine Electric & Electronic Engineering
关键词
分布电容
电力系统
接地方式
distributed capacitance
power system
grounding mode
