摘要
针对目前矿井主通风机电动机绝缘状态在线监测可靠性和稳定性差的问题,在分析监测技术现状的基础上,设计了矿井主通风机高压电动机绝缘状态监测系统硬件电路,开发了以C8051F020单片机为核心的绝缘状态监测系统应用软件。该监测系统可实现对高压电动机绝缘电阻、温度、局部放电、工频电压等信号的有效采集、存储和处理,并将采集到的信号传至上位机进行分析处理。对设计的矿井主通风机高压电动机绝缘状态监测系统进行实验室调试,并在寺河矿二号井进行工业现场试验,结果表明:系统功能完善,运行稳定,数据检测实时、准确,能够满足矿井主通风机高压电动机绝缘状态在线监测的要求。
According to at the problems of the lack of safety and reliable insulation on- line monitoring system of mine main ventilator,on the basis of analyzing the development status of monitoring technology,the hardware system for monitoring insulation condition of mine main ventilator high- voltage motor had been designed and the applicable software of insulation condition on- line monitoring system had been also developed based on C8051F020 microcontroller. The insulation on- line monitoring system was stronger functions to collect,storage and process the signals effectively,such as the insulation resistance,temperature,partial discharge,power frequency voltage,and then the CPU of monitoring system could transfer the data processed to the host computer so as to evaluate the insulation condition. The monitoring system had been debugged in laboratory and applied to the mine main ventilator in Sihe No. 2 Coal Mine. The results showed that the system function was perfect and run stable,with the monitoring data being highly accuracy and real- time. The system could satisfy the requirement for the on- line monitoring of the high- voltage motor insulation status in mine main ventilator.
出处
《煤炭科学技术》
CAS
北大核心
2014年第4期70-74,共5页
Coal Science and Technology
基金
山西省科技重大专项资助项目(20111101024)
关键词
矿井主通风机
高压电动机
绝缘状态
在线监测
mine main ventilator
high-voltage motor
insulation status
on-line monitoring
