引黄工程平鲁泵站接入系统及干线扩机后谐波分析计算

阐述了随着变频调速技术的日益成熟,变频器驱动交流电动机的变频调速系统已成为交流调速的主流,变频调速系统作为供电网的主要谐波源之一,对其进行谐波分析是必要的。针对万家寨引黄工程平鲁泵站及各干线的变频调速机组进行谐波分析计算,结果表明泵机投运后会对电网造成谐波污染,建议控制变频机组同时投运数量,并且在变频装置中装设滤波器。

Harmonic Analysis Calculation after Pinglu Pump Station of Yellow River Diversion Project Being Connected to Power Grid and Trunk Line Being Extended

With the development of variable frequency speed control system, variable frequency speed control system of AV driving motor has become the mainstream of the AC speed control. Variable frequency speed control system,as one of the important harmonic sources of power grid,is necessary to be analysed in terms of harmonic influence. Through harmonic calculation on inverter-driven induction motor connecting to Pinglu pump station and trunk line of Yellow River diversion project,it is indicated that after the motor being put into operation,it will cause harmonic pollution on power grid. Therefore,it is proposed to control the number of frequency converter sets which are put into operation concurrently,and to install filter on inverter device.