宽厚板可逆热轧机组大功率直流调速系统  

The high-power DC motor speed control system of heavy plate reversible hot rolling mill

作　　者：史伟[1] 袁欢媚[1] 刘峰[1] 马步强[1] 李联飞[1] SHI Wei;YUAN Huan-mei;LIU Feng;MA Bu-qiang;LI Lian-fei(China National Heavy Machinery Research Institute C o.,L td.,Xi’an 710032,China)

机构地区：[1]中国重型机械研究院股份公司,陕西西安710032

出　　处：《重型机械》2018年第2期46-49,共4页Heavy Machinery

摘　　要：本文提出了一种大功率直流调速系统,将某企业宽厚板可逆热轧机组的两台大功率直流电动机,由原来的G-M调速方式,改变为采用标准直流传动装置的可控硅变流调速方式,其每台直流电动机使用4台标准的大功率四象限工作制整流装置,组成硬并联加串联12脉波的结构,在大大提高工作效率和减少电网侧谐波电流的同时,满足电动机调速要求。A kind of high-power DC motor speed control system is proposed in order to remould the DC motor drive system of a heavy plate reversible hot rolling mill,the SCR variable current speed-adjusting for standard DC drive control devices is applied to two high-power DC motor instead of G-M speed control system.Each DC motor configures four high-power 4-phase DC drive and which constitute the structure of hard paralleling connection and 12-pulse series connection.The structure can satisfy the requirement of high-power DC speed adjusting drive in addition to improving the manufacture efficiency and reducing the grid harmonic.

关 键 词：宽厚板可逆热轧机组 直流调速系统 硬并联 12脉波串联 

分 类 号：TG333[金属学及工艺—金属压力加工]