中文摘要：

为了更好地研究光伏发电中电力电子装置对配电网谐波的影响,建立了基于实时数字仿真仪（RTDS）的配电网模型。针对几种典型接入方式的情况下,仿真计算三相逆变器对配电网谐波的影响。分析了光伏接入配电网上不同节点,光伏发电不同的出力量均对配电网谐波造成不同程度的影响。实验表明,光伏并网与大电网间的公共连接点之间的阻抗对谐波影响很大。

英文摘要：

In order to better study the effect of the power electronic device of photovoltaic power generation on harmonic in distribution network,a distribution network model based on RTDS was established.According to the typical access ways,the effect of three-phase inverter on harmonic in distribution network was simulated and calculated.The PV access to distribution network with different node and the different power of photovoltaic power generation have different degrees of impact on harmonic in distribution network.Experimental study shows that the impedance between photovoltaic grid and public connection has great influence on harmonic.