矿井交流提升机双闭环调速系统设计  

Design on Double Closed Loop Speed Regulation System of Mine AC Hoist

作　　者：季厌浮[1] 胥良[1] 王宇[2] 赵振民[3] 赵杰[1] 郭松林[1] 

机构地区：[1]黑龙江科技学院电气与信息工程学院,黑龙江哈尔滨150027 [2]哈尔滨商业大学管理学院,黑龙江哈尔滨150028 [3]黑龙江科技学院研究生学院,黑龙江哈尔滨150027

出　　处：《煤炭科学技术》2011年第10期77-79,共3页Coal Science and Technology

基　　金：黑龙江省教育厅科学技术研究项目资助(11541321)

摘　　要：针对转子串电阻调速的机械特性较软,具有耗能大、启动不平稳、故障率高等缺点,设计了斩波式串级调速系统。为了提高静态调速精度,并获得较好的动态特性,系统采用电流负反馈与转速负反馈的双闭环控制方式,通过调节器的调节,最终获得转速无静差系统。系统调速范围宽,转速可在950～1 350 r/min连续可调。实现了阶跃输入时的实际转速对给定转速的跟踪,而且稳态时无偏差。电动机等速运行时能够平滑过渡到自然特性曲线,实现了无级平稳调速的全新功能。The motor rotor with the electric resistance speed regulation would have soft mechanical features with high energy consumption,unstable startup,high fault rate and other shortages.A chopper cascade speed regulation system was designed.In order to improve the accuracy of the static speed regulation and to have good dynamic features,the double closed loop control with the current negative feedback and the rotary speed negative feedback was applied to the system.With the regulation of the regulator,the rotary speed astatic system was finally achieved.The speed regulation scope of the system was wide and the rotary speed could be continuously regulated from 950~1 350 r/min.The actual rotary speed during the stage jump input period could trace the given rotary speed and there was no error during the stabilized period.During the constant speed operation,the motor could be smoothly in a natural characteristic curve and would have a full new function of the stepless stable speed regulation.

关 键 词：斩波式串级调速 功率因数 节能 双闭环控制 转速无静差 无级平稳调速 

分 类 号：TD534[矿业工程—矿山机电]