400t桥面吊机变频调速及同步控制系统  

Motor Speed Frequency Change and Synchronous Control System for 400-t Deck Unit Erection Crane

作　　者：涂光骞[1] 

机构地区：[1]中铁大桥局集团武汉桥机公司,湖北武汉430052

出　　处：《桥梁建设》2005年第B06期135-138,共4页Bridge Construction

摘　　要：在大型双臂杆架梁起重机控制系统中应用电子及单片机控制技术,利用变频调速一涡流制动系统,解决通用变频器对位能性质重载条件下的变频调速难题。变频调速系统建立双闭环自动控制回路,对交流异步电机拖动的2组独立卷扬设备进行重载抬吊作业过程,实现平稳变速和达到准确同步的自动控制。In the control system of large double-boom deck unit erection crane, the control techniques of electronic and monolithic processor are applied. The motor speed frequency change and eddy current retarder brake system is used to resolve the difficult problem of the speed frequency change of general frequency changer under heavy-duty condition of potential energy nature. The double closed-loop automatic control circuit is established for the system of the speed frequency change to realize smooth speed change and correct synchronous automatic control during heavy-duty lifting opereration of the crane with two groups of indepenent winches driven by AC asynchronous motors.

关 键 词：变频调速 涡流制动 桥梁架设 同步 自动控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]