曲靖110kV电气化铁路用电谐波危害分析

电力系统的谐波是电力系统电压正弦波形产生畸变,电力机车用电会产生0次到50次谐波。南昆电气化铁路和贵昆电气化铁路经过曲靖市,在曲靖电网内有110千伏电气化铁路牵引变电所11座,为了查明曲靖电网内电铁牵引站谐波情况,2005年10月至2006年2月,我们对红土沟等电铁牵引站进行谐波调查测试,测试结果表明,曲靖电网内电铁牵引站的5次、7次谐波电流及电压严重超标。本文从曲靖电网内电气化铁路牵引变电所变压器的结构分析入手,分析铁路牵引变电所谐波电流电压对电网的危害,以及谐波的抑制措施

Analysis of Qujing 110 kV Electricity Electrified Railway Harmonic Hazard

The power system harmonic is the voltage sine wave of power system get distortion; electric locomotive power will have 0 to 50 harmonics. The Nanning to Kunming electrified railway and the Guiyang to Kunming electrified railway is through the Qujing City, The Qujing grid have 11 traction substation which 110 KV electrified railway , in order to identify situations of harmonic in substation of electrified railway Traction in Qujing grid, from October 2005 to February 2006, we have also Investigation tests the harmonic of the traction substation red -- from other railway traction station harmonic survey test results show that Electric Railway Traction Qujing grid points five times, seven times higher than the standard voltage and current harmonics. From Qujing grid electrified railway traction substation transformer structure analysis, and analysis of current and voltage harmonic Railway Traction Power Substation hazards, as well as harmonic suppression measures