带死区的开关量控制在电渣熔铸自动进给中的应用  

Application of Switch Control With Dead Limits in Automatic Feeding of Electroslag Casting

作　　者：孙达昕[1] 陈兵芽[2] 耿茂鹏[1] 饶磊[1] 杨小军[1] 

机构地区：[1]南昌大学,江西南昌330029 [2]南昌航空工业学院,江西南昌330034

出　　处：《南昌大学学报（工科版）》2003年第1期1-4,共4页Journal of Nanchang University(Engineering & Technology)

基　　金：国家863计划资助项目

摘　　要：介绍了带死区的开关量控制在大型曲轴电渣溶铸中驱动电动机,以实现自耗电极的自动进给要求.为了适应自耗电极慢速进给的需要,采用直流力矩电动机;而驱动电动机工作可以用PWM功率放大器或带死区的开关量控制.研究了两种方法的优缺点,给出了带死区的开关控制的基本原理及软硬件设计.It is presented that the switch control with dead limits drives a motor to accomplish the control requirement of automatic feeding of cousumable electrode in electroslag casting of heavy crankshaft.In order to adapt to the need of slowly feeding of consumable electrode,the DC Servo-motor is adopted,and the PWM power-amplifier or the switch control with dead limits is used to drive it.The paper studies the advantage and disadvantage of the two methods,and introduces the basic principle and design of software and hardware of the switch control with dead limits.

关 键 词：电渣熔铸 死区 开关量 自动进给 自耗电极 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]