监控分站冗余的煤矿供电监控系统

针对煤矿供电监控系统的监控分站故障时导致远程监控失效的问题,设计了一种监控分站冗余的煤矿供电监控系统,井下变电所2台监控分站互为热备,监控分站之间通过光纤通信维持心跳;设计了2台监控分站与高低压配电装置内的电力综合保护器之间RS485总线通信硬件互锁电路,设计了监控分站热备软件。现场应用表明:其中1台监控分站异常时,另外1台监控分站可在30 s内投入运行,有利于提高煤矿供电监控系统的可靠性。

A redundant monitoring system for monitoring substation of coal mine power supply

In view of the problem of remote monitoring failure caused by the failure of monitoring substation of coal mine power supply monitoring system, a redundant monitoring sub-station coal mine power supply monitoring system is designed. The two monitoring sub-stations of underground substation are hot standby for each other, the monitoring sub-stations maintain the heartbeat through optical fiber communication, the RS485 bus communication hardware interlock circuit between the two monitoring sub-stations and the integrated power protector in the high and low voltage power distribution device is designed, and the hot standby software of monitoring substation is designed. The field application shows that when one monitoring substation is abnormal, the other monitoring substation can be put into operation within 30 s, which is beneficial to improving the reliability of coal mine power supply monitoring system.