新型换流变压器在矿山直流供电系统中的应用  

Novel Converter Transformer Application in Current DC Power System of Mine

作　　者：朱红平[1,2] 罗隆福[2] 许加柱[2] 

机构地区：[1]湖南科技大学信息与电气工程学院,湖南湘潭411201 [2]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《电气传动》2009年第8期19-22,共4页Electric Drive

基　　金：湖南省重大科技专项资助项目(05GK1002-1)

摘　　要：大功率晶闸管直流供电绞车的矿井中,谐波常引发事故,并使整流装置的功率因数降低,抑制谐波、提高功率因数成为整流装置的首要任务。新型整流变压器在传统的变压器绕组结构上新增了第3绕组,其输出端接有的滤波器绕组利用安匝平衡原理可以起到无功补偿和谐波屏蔽作用,它代替传统的整流变压器在整流电源系统中的应用,不仅为无功补偿和谐波屏蔽提供了新的手段,并可降低换流变压器的绝缘设计难度和设计容量,有利于变压器的安全稳定运行和延长使用寿命,具有较好的经济效益。Harmonic often causes accidents in mine, for DC power which supplied by high-power thyristor controlled,and reduces the power factor of rectifiter device,so harmonic suppression and improve power factor of rectifier devices become the primary task. Novel converter transformer added a filter winding to the tradition winding structure, which can take a role of reactive power compensation and harmonic suppression using the principle of electromagnetism balance. It replaces the traditional commutation transformer in the power system, not only providing a new method for power compensation and harmonic suppression,but also reducing the converter transformer insulation and capacity design, which is useful to the safe and stable operation and longer life ,also good economic benefits.

关 键 词：新型换流变压器 磁势平衡 谐波抑制 桥式整流 无功补偿 

分 类 号：TM832[电气工程—高电压与绝缘技术] X924.3[环境科学与工程—安全科学]