矿井供电系统弧光接地过电压形成过程研究

刘聚财; 耿蒲龙; 曲兵妮; 宋建成; 罗超; 李鑫; 田敏

doi:10.13272/j.issn.1671-251x.2017080063

矿井供电系统弧光接地过电压形成过程研究

doi: 10.13272/j.issn.1671-251x.2017080063

刘聚财^{1, 2},
耿蒲龙^{1, 2},
曲兵妮^{1, 2},
宋建成^{1, 2},
罗超^{1, 2},
李鑫³,
田敏³

1.
太原理工大学矿用智能电器技术国家地方联合工程实验室，山西太原030024
2.
太原理工大学煤矿电气设备与智能控制山西省重点实验室，山西太原030024
3.
山西晋城无烟煤矿业集团有限责任公司寺河矿，山西晋城048006

基金项目:

国家自然科学基金资助项目（51377113，U1510112）

山西省科技重大专项项目（20131101029）

详细信息

中图分类号: TD611
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出版历程
- 刊出日期: 2018-04-10

Research on formation process of arc grounding over-voltage in mine power supply system

LIU Jucai^{1, 2},
GENG Pulong^{1, 2},
QU Bingni^{1, 2},
SONG Jiancheng^{1, 2},

2.
Shanxi Key Laboratory of Mining Electrical Equipment and Intelligent Control, Taiyuan University of Technology, Taiyuan 030024, China
3.
Sihe Coal Mine, Shanxi Jincheng Anthracite Mining Group Co., Ltd., Jincheng 048006, China

摘要

摘要: 为全面研究矿井供电系统弧光接地过电压形成过程，采用实时数字仿真仪搭建了矿井供电系统模型和间歇性电弧接地模型，分别对工频熄弧、高频熄弧及工频熄弧与高频熄弧同时存在的混合熄弧过程中过电压进行了仿真研究。结果表明：工频熄弧理论条件下暂态过电压最大值略低于历史实测值；高频熄弧理论条件下暂态过电压最大值随电弧重燃次数的增加而增大，且暂态过电压最大值高于历史实测值；混合熄弧情况下，高频熄弧出现次数越多且连续出现时，暂态过电压最大值越高；矿井供电系统发生电弧接地故障时，一般表现为工频熄弧与高频熄弧间隔出现的状态，高频熄弧连续出现3次以上的概率很小。
- 矿井供电系统 /
- 弧光接地过电压 /
- 工频熄弧 /
- 高频熄弧 /
- 混合熄弧 /
Abstract: For comprehensive research on formation process of arc grounding over-voltage in mine power supply system, a mine power supply system model and an intermittent arc grounding model were built by use of real time digital simulator, and over-voltages in processes of power frequency arc extinction, high frequency arc extinction and hybrid arc extinction were simulated. The simulation results show that the maximum transient over-voltage under condition of power frequency arc extinction theory is slightly lower than historical measured value; the maximum transient over-voltage under condition of high frequency arc extinction theory increases with the increase of arc re-ignition times, which is larger than the historical measured value; in the case of hybrid arc extinction, the more times high frequency arc extinction occurs and occurs continuously, the larger the maximum transient over-voltage is; when arc grounding fault occurs in mine power supply system, power frequency arc extinction and high frequency arc extinction alternately occurs, and probability is very low that high frequency arc extinction continuously occurs more than three times.
- mine power supply system /
- arc grounding over-voltage /
- power frequency arc extinction /
- high frequency arc extinction /
- hybrid arc extinctio