双PLC在矿井提升机变频改造中的应用  

Application of Double PLC in the Mine Elevator Frequency Conversion Reform

作　　者：孙文志[1] 

机构地区：[1]辽宁石油化工大学职业技术学院,辽宁抚顺113001

出　　处：《机械与电子》2008年第7期50-52,共3页Machinery & Electronics

摘　　要：针对煤矿井下提升机变频改造的实践,重点介绍双线控制"的设计理念,分析系统实现同步控制、双重保护的工作原理,进一步阐述改善控制系统的调速性能、提高系统的安全性和可靠性的技术措施.In accordance with the practice of coal mine elevator frequency conversion reform,the design idea of ＂two - line control＂ is mainly introduced. The working principle of the system synchronous control and double protection is analyzed. Furthermore, the technological measures- developing the governor＇s function of control system and improving the safety and reliability of the system, are explained.

关 键 词：变频技术 PLC 调速 安全 

分 类 号：TD444[矿业工程—矿山机电]