IGCT在矿井提升机斩波串调系统中的应用

作者：谢 军,孙忠献，温晓玲 日期：2007-07-06/span> 浏览：3935 查看PDF文档

IGCT在矿井提升机斩波串调系统中的应用
谢 军,孙忠献，温晓玲
(安徽职业技术学院 电气工程系，安徽 合肥 230051)

摘 要：采用转子回路串电阻调速的绕线式异步电机广泛应用于矿井提升机电控系统，提出了将斩波串级调速方案应用于改造该类矿井提升机电控系统。其与常规串级调速系统的不同之处在于转子直流回路中加入了直流斩波器。斩波串调不仅克服了有级调速的缺点，还可以采用闭环控制，使调速性能大大改善，同时与普通串调系统相比，逆变器的容量大为减小；更为重要的是能够大大改善电机拖动系统的功率因数。
关键词：集成门极换向晶闸管；斩波串调；绕线异步电动机

Application of IGCT in minewell hoist chopwave cascade speedregulation system
XIE Jun, SUN Zhongxian, WEN Xiaoling
(Department of Electric Engineering, Anhui Vocational and Technical College, Hefei 230051, China)

Abstract: Woundrotor induction motors that adjust speed by connecting resistors in series to rotor circuits, have found a wide range of applications in the electrically controlled systems of minewell hoists. Utilizing chopwave cascade speedregulation system to reform wound induction motors that adjust speed by connecting resistors in series to rotor circuits was presented. Compared with cascade speedregulation system, the difference is that DC chopper is joined into rotor DC circuit. Chopwave cascade speedregulation system not only overcomes the disadvantages of stepspeedcontrolled, but also improves the systems performance by adopting closeloop control. Inverter capacity is decreased, the more important is that power factor is increased greatly.
Key words: integrated gatecommutated thruster (IGCT); chopwave cascade; woundrotor induction motor

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