基于ETAP软件的燃机机组压母线的谐波分析与治理

Analysis and Treatment of Harmonic Wave on Medium Bus of Combined Cycle Power Plant Base on ETAP

针对联合循环机组黑启动时,6.6 kV母线的谐波电压总畸变率超标的情况,通过ETAP建立分析模型,计算和分析各次谐波数值,提出在6.6 kV母线上设置多组单调谐滤波器,滤除特定频率谐波电流,达到治理谐波的目的,同时也提高系统功率因数。

For voltage distortion rate of 6.6 kV section of combined cycle power plant exceeds the limit value of standard while this section is fed from black start diesel generators,modeling through ETAP,analyze and study of harmonics of 6.6 kV section.It is proposed to install several groups single-tuned filters to reduce specific frequency harmonic current,to achieve treatment of harmonic,and to improve the power factor of the system as well.