防爆变频器在煤矿应用中的关键技术  

Key Technologies of Explosion-proof Frequency Converter Applied in Coal Mine

作　　者：祝龙记[1] 张旭立[1] 

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001

出　　处：《工矿自动化》2012年第2期19-22,共4页Journal Of Mine Automation

摘　　要：分析了防爆变频器在煤矿井下使用过程中存在的电压等级、散热、电磁兼容性、逆变器转换效率等问题,详细介绍了解决这些问题的方法,即通过采用隔爆兼本质安全型技术和热管散热技术解决变频器的防爆和散热问题,使防爆变频器具有性能高、功能强、噪音低等特点;通过改变变频器的电路拓扑结构、改进控制策略等技术手段解决变频器的电磁兼容性和能耗问题,使防爆变频器满足煤矿生产的现代化要求。The paper analyzed problems of voltage level,heat dissipation,EMC and conversion efficiency of inverter existed in using process of explosion-proof frequency converter in coal mine underground,and introduced methods of solving these problems in details,namely using technologies of flameproof and intrinsic safety and heat dissipation with heat pipes to solve problems of explosion-proof and heat dissipation of frequency converter,which can make explosion-proof frequency converter has characteristics of high performance,strong functions and low noise;using technical means of changing circuit topology and improving control strategy of frequency converter to solve problems of EMC and energy consumption of frequency converter,which can make explosion-proof frequency converter meet with requirements of modernization of coal mine production.

关 键 词：防爆变频器 电压等级 散热 电磁兼容性 热管散热器 三电平逆变器 隔爆兼本质安全型 

分 类 号：TD684[矿业工程—矿山机电]