输电线路直流融冰的谐波仿真分析  

The harmonic analysis of DC transmission line de-icing equipment

作　　者：胡湘 

机构地区：[1]清远供电局,广东清远511515

出　　处：《贵州电力技术》2014年第1期1-4,61,共5页Guizhou Electric Power Technology

摘　　要：通过在MATLAB中搭建6脉波和12脉波直流融冰装置模型对其产生的谐波进行仿真计算,得出6脉波直流融冰装置模型主要产生5次和7次谐波;12脉波直流融冰装置模型的谐波主要是11次和13次。在未采取谐波抑制措施时,两种融冰装置模型的谐波畸变率均超过了10%。通过串联电抗,两台主变并联运行作为融冰电源等谐波抑制措施使谐波畸变率满足IEEE标准谐波总畸变率不超过5%的要求。The harmonic wave of 6-pulse and 12-pulse DC de-icing equipment was analyzed by MATLAB. The main harmonics of the 6-pulse DC de-icing equipments were 5~h and 7th harmonic waves, and the 12-pulse DC de-icing equipments were 11 th and 13th harmonic waves. But the total harmonic distortion was over 10% when there was no inhibition measurement. By series reactance, parallel opera- tion of two transformers as melting ice supply to suppress harmonic met the IEEE standard in which the total harmonic distortion is un- der 5%.

关 键 词：直流融冰装置模型 电力电子器件 谐波分析 谐波抑制措施 

分 类 号：TM73[电气工程—电力系统及自动化]