高压电器2018，Vol.54Issue(2)：140-146,7.DOI:10.13296/j.1001-1609.hva.2018.02.023
高铁谐波对牵引变压器220kV侧的影响规律研究
Study on the Influence Regularity of High-speed Railway Harmonics on the 220 kV Side of Traction Transformer
摘要
Abstract
Special operation mode of high-speed railway will produce a large number of harmonics,and the harmonic will be traversed by the traction transformer into the main network 220 kV side,the main effect of the major network is worthy to make further studies and tests.Based on the harmonic data of the traction substation,the harmonic source model based on the measured data is established.The influence of the high-speed railway harmonic on the 220 kV side of the traction transformer is summarized by simulation.In this paper,based on the harmonic data measured at traction substation,the harmonic source model is established.According to a lot of simulated results,the influences of high-speed railway harmonics on 220 kV side of traction transformer are presented.When high-speed railway harmonics are transmitted to the 220 kV side,the effective value of each harmonic has different amplitude reduction;and there are different changes in harmonic content,the third and fifth harmonic currents have increased,and the 7 ～ 50 times odd harmonic current is reduced.When the difference between the phase of the T line harmonic current and the phase of the F line harmonic current is different,the effects on the 220 kV side are also different,and the phase difference increased in the range of 10 degrees to 50 degrees,at the 220 kV side,the third,fifth and seventh the harmonic current content and total harmonic distortion rate are reduced,When the phase difference is increased from 50 degrees to 90 degrees,the third,fifth and seventh the harmonic current content and total harmonic distortion rate of the 220 kV side increased.The results show that the method is simple and clear,and the calculation error is within the allowable range,which has important reference significance for the high-speed railway harmonic control.关键词
谐波/各次谐波有效值/谐波电流相位/谐波电流含有率Key words
harmonics/harmonics current effective value/harmonics current phase difference/harmonics current containing rate引用本文复制引用
方春华,潘弘,刘杨,张闯..高铁谐波对牵引变压器220kV侧的影响规律研究[J].高压电器,2018,54(2):140-146,7.基金项目
特高压工程技术国家工程实验室开放基金 （）
三峡大学人才启动基金(KJ2014B054).Project Supported by National Laboratory Open Foundation of UHV Engineering Technology Research Foundation for Talents,Three Gorges Univevsity(KJ2014B054). （KJ2014B054）
