【摘要】 介绍一种含有多个不同谐波源地区供电系统的谐波潮流计算的实用方法。针对天水地区供电网主要谐波源进行了测量,统计分析了天水地区电网各谐波源的特点及谐波含量。针对地区供电网的特点确定供电网元件的数学模型,利用序分量法进行供电网络谐波潮流的计算,最终给出系统中电压、电流的不平衡率及各节点的谐波电压畸变率和各支路通过的谐波电流的含有率。对计算结果和测量结果进行比较,表明该方法对了解含有多个不同谐波源地区的供电系统谐波分布是一种行之有效的方法。更多还原

【Abstract】 The mathematic model and method to compute harmonic flow of district power system with several different harmonic sources are presented.The main harmonic sources in Tianshui district power system were measured.Its harmonic characteristic and harmonic contents are analyzed.The harmonic models and parameters of the components in the power supply system are determined and its harmonic flow is computed by utilizing symmetrical component method.The unbalance con-dition and harmonic pollution in the power supply system are evaluated.The calculated results are compared with the measured results,which verifies the effectiveness of the proposed method.This project is supported by National Nature Science Foundation of China(59737140).更多还原