风电场接入对电力系统阻尼特性的影响  

Impact of Grid-Connected Wind Farm on Damping Performance of Power System

作　　者：陈树勇[1] 常晓鹏[2] 孙华东[1] 曾令全[2] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192 [2]东北电力大学电气工程学院,吉林省吉林市132012

出　　处：《电网技术》2013年第6期1570-1577,共8页Power System Technology

摘　　要：推导了适用于小干扰稳定性分析的双馈感应风电机组(doubly-fed induction generator,DFIG)的数学模型,研究了PSD-BPA中双馈感应风电机组的模型。在PSD-BPA中搭建了包含双馈感应风电机组的IEEE30节点系统,采用特征值分析法详细研究了不同风电穿透率下的双馈感应风电机组接入后对电力系统阻尼特性的影响。理论分析和仿真结果表明:双馈感应风电机组接入后系统的阻尼特性得到了一定的改善,但当系统中风电穿透率较高时,系统阻尼有变弱的趋势。A mathematical model of doubly fed induction generator （DFIG） suitable to small signal stability analysis is deduced and the DFIG model in PSD-BPA is researched. An IEEE 30-bus system containing DFIG is constructed in PSD-BPA, and by use of eigenvalue analysis the impacts of grid-connected DFIG on damping characteristics of power system under different wind power penetration rates are researched in detail. Both results from simulation and theoretical analysis show that after the grid-connection of DFIG the damping characteristics of power system can be improved some extent, however the damping characteristics will be weakened under higher wind power penetration rate.

关 键 词：风电场 双馈感应风电机组 阻尼特性 特征值分析 

分 类 号：TM71[电气工程—电力系统及自动化]