基于C8051F020的矿井127V综合保护系统的设计
Design of Mine-used 127V Integrated Protection System Based on C8051F020
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摘要: 针对传统的矿井127 V综合保护系统保护距离短、稳定性差和显示不精确的问题,在分析系统应具备的保护功能和自检功能的基础上,设计了以C8051F020为核心的数字化矿井127 V综合保护系统,详细介绍了系统硬件电路设计和软件设计。该系统可对3个回路执行综合保护和控制功能,能满足长距离保护的要求,系统自检功能的设计减小了系统故障引发安全事故的几率。调试结果表明,该系统功能全、成本低,能够满足现代煤矿井下的需求。Abstract: In view of the problem that traditional mine-used 127 V integrated protection systems have shortcomings of short protection distance,poor stability and inaccurate display,a digital mine-used 127 V integrated protection system based on C8051F020 was designed on the basis of analyzing protection and self-checking functions which the system should have.The system’s design of hardware circuit and software were introduced in details.The system can realize integrated protection and control functions for three circuits,meet demand of long distance protection,and reduce probability of safety accidents caused by system fault because of self-checking function.The experiment result showed that the system has full functions and low cost,and can meet needs of a modern coal mine.