大规模风电接入对电力系统区域间振荡模式影响研究  

Impact Study of Large-scale Wind Power Integration on Power System Inter-area Oscillation Mode

作　　者：崔葛安 

机构地区：[1]国网陕西省电力公司,西安710048

出　　处：《内蒙古电力技术》2016年第2期14-17,共4页Inner Mongolia Electric Power

摘　　要：随着风力发电的快速发展,电网安全约束逐渐成为限制风电接纳能力的瓶颈,而区域间弱阻尼振荡是其中一个重要方面。本文建立了包含风电场的电力系统等效模型,通过频域分析和时域仿真,研究大规模风电接入对电网区域间振荡模式的影响,并分析主要影响因素。研究表明,风电场替代送端同步机组,将改善区域间振荡模式的阻尼特性,而改善程度取决于所替代同步机组在该振荡模式中的参与因子模值。该结论在新疆—西北联网系统振荡模式中得到验证,为电网规划运行提供了参考借鉴。With the explosive growth of wind power,security constraints of power system have been the bottleneck of acceptable capacity of wind power,and the underdamping of inter-area oscillation mode is an important one of the problems.An equivalent model of power system with wind plants is established,and the influence of large-scale wind power integration on inter-area oscillation mode is studied in this paper.The results indicates that the damping of inter-area oscillation mode will be enhanced by the replacement of synchronous generators（SGs） with wind generators,and the degree depend on the participation factor of the SGs replaced.The conclusion has been verified by the actual system example of Xinjiang-Northwest network grid,and the reference for system operation has been given.

关 键 词：风电接入 区域间振荡 阻尼特性 参与因子 

分 类 号：TM712[电气工程—电力系统及自动化]