煤矿井下低压电网漏电保护技术研究与应用  

Research and application on leakage protection technology of low-voltage power grid in underground coal mine

作　　者：文金忠 张立中[2] 刘建洪 张文宏 魏振富 Wen Jinzhong;Zhang Lizhong;Liu Jianhong;Zhang Wenhong;Wei Zhenfu(Guizhou Coal Mine Design and Research Institute Co.,Ltd.,Guiyang 550025,China;The Fourth Geological Survey Institute of Henan Bureau of Geology and Mineral Exploration and Development,Zhengzhou 450001,China)

机构地区：[1]贵州省煤矿设计研究院有限公司,贵州贵阳550025 [2]河南省地质矿产勘查开发局第四地质勘查院,河南郑州450001

出　　处：《能源与环保》2021年第8期154-157,共4页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家自然科学基金资助项目(51764010,51874109);贵州省基础研究(科学技术基金)项目(黔科合基础[2020]1Y215)。

摘　　要：煤矿井下漏电故障是矿井低压电网的主要故障,严重影响煤矿人身安全和安全供电。研究了煤矿井下低压电网漏电保护技术,分析了煤矿井下电网基本结构及漏电保护装置性能指标,基于此,设计了煤矿井下低压电网漏电保护装置的硬件主体部分,重点分析了CPU选择、硬件电路单元;研究了软件主体及正弦波产生模块,并给出了硬件和软件抗干扰措施。研究为煤矿井下的供电安全提供了技术保障。The underground leakage fault of the coal mine is the main fault of the low-voltage power grid of the mine,which seriously affects the personal safety and safe power supply of the coal mine.This paper studied the leakage protection technology of low-voltage power grid underground in coal mines,analyzed the basic structure of underground coal mine power grids and the performance indicators of leakage protection devices.Based on this,the main hardware part of the low-voltage grid leakage protection devices in coal mines was designed,focusing on the CPU selection and hardware circuit unit.The main body of the software and the sine wave generation module were studied,and the hardware and software anti-interference measures were given.The research provides a technical guarantee for the safety of power supply underground in coal mines.

关 键 词：低压电网 漏电保护 性能指标 硬件 软件 抗干扰措施 

分 类 号：TM771[电气工程—电力系统及自动化]