晶闸管18脉波变流器分析  

Analysis of Thyristor Converter with Eighteen-Pulse

作　　者：方昌始[1] 

机构地区：[1]华南理工大学,广东广州510640

出　　处：《电力电子技术》2007年第8期77-79,共3页Power Electronics

摘　　要：提出了一种晶闸管18脉波串接式变流器的电路方案。介绍了该变流器的结构和工作原理;详细分析了电路的整流和逆变过程。对换流过程和电压波形进行了分解,并导出了数学模型。通过对逆变区的讨论,定出了安全换流的最小逆变角度。最后给出了在实验设备上实测到的电路整流电压波形,并与常规的6脉波桥进行了比较。A new circuit design for the thyristor converter with 18-pulse is presented.The configuration and theory of the converter are introduced, followed by the analysis of its commutation processes as well as their voltage waveforrns. Sub- sequently,the calculation of its mathematics model ,and the operating process of inverting mode are specialized.Hence ,af- ter the analysis of inverting mode,the minimum inverting angle of safety commutation is acquired.Finally,the tested load voltage waveforms and experimental data are given,accompanying with the conventional 6-pulse bridge as its comparison.

关 键 词：变流器 晶闸管 整流电路 

分 类 号：TM46[电气工程—电器] TM464