摘要
针对10 kV中压配电网,分析了谐振接地补偿的基本原理,通过建立10 kV中压配电网接地模型,利用电磁暂态仿真工具软件对线路单相金属性接地故障下中性点谐振接地的补偿过程进行了仿真研究。对文献[3]提出的结合谐振接地和电阻接地的中性点灵活接地的工作过程进行了ATP仿真,并指出其存在的问题,在加以改进后重新进行了仿真,通过仿真结果的相互比较,表明了新的接地方式在故障补偿与故障选线方面的优势。
The paper analyses the basic theory of the resonant earthed neutral system to the 10 kV medium-voltage network. Using ATP software, the paper establishes a 10 kV distribution system and makes simulation to compensate process of the resonant earthed neutral with single phase to ground fault. After making simulation to the neutral flexible grounded system proposed in reference 3, which takes the advantages of the resonant grounded neutral treatment and the impedance grounded neutral treatment, this paper points out its problems and does simulation after its improvement. The new neutral point treatment shows its superiority in fault compensation and fault-line selection through the comparison of simulation results.
出处
《继电器》
CSCD
北大核心
2006年第7期18-23,42,共7页
Relay
关键词
电力系统
中压配电网
谐振接地
灵活接地
ATP仿真
power system
medium-voltage power distribution system
resonant grounding
neutral flexible grounding
ATP simulation
