摘要
对典型220 kV变电站进行了谐波谐振的分析计算,并在EMTP中建立了电容器谐波仿真计算模型。模拟了投入不同电容器组数时,利用仿真模型研究了低次谐波的谐振情况,分析了电路谐振频率点的变化和电容器允许流过的谐波电流上限值及电容器上谐波放大倍数。
This paper calculated the harmonics resonance of a typical 220kV transformer substation, and built a capacitor harmonic EMTP simulation model. It simulated input different number of capacitor bank; researched on low frequency harmonics resonance case by using the simulation model; analyzed the circuit resonant frequency point change, harmonic current upperlimit value and harmonic magnification of capacitors.
出处
《电力电容器与无功补偿》
2009年第2期17-20,56,共5页
Power Capacitor & Reactive Power Compensation
关键词
并联电容器组
谐振模型
谐振频率
三绕组变压器模型
谐波电流上限值
Shunt capacitor
Resonance model
Resonance frequency
Three - winding transformer model
Harmonic upper - limit value
