全数字交—交变频器低频拖动控制系统  

A Full-digital-controlled Cycloconverter for Low-frequency Drive System

作　　者：于庆广[1] 谢桂林[2] 李军 

机构地区：[1]清华大学 [2]中国矿业大学 [3]大屯煤电公司

出　　处：《电气传动》1997年第6期3-6,共4页Electric Drive

摘　　要：本文介绍了全数字交—交变频器低频拖动控制系统，适用于矿井提升机的减速阶段和爬行阶段。采用十六位单片机MCS－8097BH和MCS－8098BH构成双微机控制系统．研制出电源同步信号不引入控制计算机的新型数字触发电器。提出了感应电动机解耦算法下的标量控制策路，实现了系统电流、速度和转子磁链的闭环控制。A full-digital-controlled cycloconverter for low-frequency drive system used in the braking and the creeping periods of the coal mine hoisting is designed in this paper. Two sixteen bits microprocessor MCS-8097BH and MCS-8098BH are adopted to make a double-processor controlled system. A novel digital triggering circuit without inleting the synchronous signal of the power supply to the microprocessor is designed. A scalar control strategy with the decoupled control algorithm is suggested, and realised in the form of three closed loops controllers-controllers of current, speed and rotor flux, which make the low-frequency drive system operate efficiently.

关 键 词：数字控制 变频器 矿井提升机 交-交变频控制 

分 类 号：TD614[矿业工程—矿山机电] TD534