煤矿电网具有负荷集中、供电可靠性高、电气设备运行环境恶劣等特点，提高煤矿供电安全对煤矿生产具有十分重要的意义。随着通信技术、计算机技术、自动控制技术的发展，给煤矿井下电气设备的运行、维护和管理带来了重大变革，提高了煤矿生产自动化工作的科学性和可靠性。研究煤矿供电监控系统是实现煤矿供电自动化、控制现代化的必要手段和基本目标。 首先，在阅读大量文献的基础上，介绍了国内外矿井安全监测监控系统的发展历程，指出了目前矿井供电监控系统的不足与存在问题。设计了具有协议转换功能的矿井监控分站，研究了具有防煤矿供电故障连锁跳闸的区域保护算法。 本文所设计的矿井供电监控分站，主控制器采用ARM7芯片LPC2148。监控分站的作用有两点：一方面通过RS-485总线连接底层设备，实现井下设备信息的上传及控制功能；另一方面通过光纤以太网连接顶层计算机，作为井上监控计算机与井下各种保护器之间信息的中转、存贮、处理站，完成数据打包、通信协议转换、信息本地显示、系统本地监控和整定工作。文中详细阐述了电力分站的软硬件系统设计方法，并对分站的通信调试过程给予说明。在完成监控分站设计的基础上，研究了具有多智能测控单元的区域保护算法，将矿井开关设备内部综合保护器的方向元件信息经关联矩阵的整合，通过监控分站的故障判据而实现故障的定位及切除，在PSCAD软件中对单相接地故障进行仿真，仿真结果验证了该算法的正确性，能有效的解决矿井供电越级跳闸问题。 最后通过LabVIEW软件对矿井供电监控系统建立了简单的上位机操作界面，在系统主机上进行操作，通过网络下达指令，可以修改井下电力分站运行程序、保护器整定定值；可以对开关进行分、合闸操作和故障跳闸后信号复归操作等，在实验室环境下模拟演示了矿井供电监控系统的功能。

The coal mine power grid has such characteristics as centralizing loads, higher requirements for power supply reliability, terrible running circumstances of electrical equipments, ect. The safety production in coal mines of coal supply is of great significance. As the communication technology, the development of computer technology, automatic control technology, these will be for each link about electrical equipment operation, maintenance and management. Improving the scientific nature and reliability of the mine production automation work, is the necessary means to realize modernization of mine power supply automation control and the basic goal. First of all, on the basis of thorough reading, this dissertation introduces the development process of monitoring and control system for mine safety monitoring and points out the shortages of the current mine power supply monitoring system and existing problems. The protocol conversion function of mine monitoring stations is designed and The resistant region of coal mine power supply chain fault tripping protection algorithm is studied. In this paper, the design of the mine power supply monitoring substation, the main controller uses ARM7 LPC2148 chip. The role of the monitoring substation has two sides, on the one hand, through the RS - 485 bus connection the underlying equipment, on the other hand the top computer via optical fiber Ethernet ring network connection, as the monitor computer and protector in underground transit, storage, information between various protector treatment station; Complete packaging, communication protocol conversion, data information according to local, local monitoring system and setting to parameter. The hardware and software in detail elaborated the sub-station system design method, and the communication of the substation debugging process are given. Upon completion of the monitoring substation design, on the basis of the research has many Agent unit area protection algorithm, to mine switch equipment comprehensive protector in the direction of the internal components of the integration of information by the incidence matrix, the fault localization can be realized by monitoring the failure criterion of the substation. Single-phase grounding fault are simulated in PSCAD software and the simulation data and the results verify the correctness of the algorithm, and the problem of override trip can be solved effectively. Finally through LabVIEW software to set up a simple monitoring and control system for mine power supply PC interface, the system give orders through the network on the mainframe, it can modify from the underground sub-station to the program, the protector fixed value setting. The switch can be points that closing operation and fault tripping signal reset after the operation, the function of the mine power monitoring system is simulated in the laboratory environment.