摘要
用网络暂态能量函数分析大容量双馈感应电机(DFIG)的风电机组接入系统后暂态能量在网络中的分布特性,推导出了含有大容量风电的网络暂态能量函数的表达式。以单机无穷大系统和New England10机39节点系统为例进行了仿真计算,结果表明,系统中接有基于DFIG大容量的风电机组时暂态能量在网络中的分布具有聚积性的特点,并且适当地接入基于DFIG的风电机组可以提高系统的暂态稳定性。最后引入支路稳定性指标定量描述含有风电场的系统暂态稳定性。
The distribution of transient energy over network of power system integrated with large scale wind turbines utilizing doubly fed induction generators（DFIG）is analyzed.The network transient energy function of system with wind farms is derived.One machine infinite bus system and New England 10-machine 39-bus system are utilized to simulate.Results show that the majority of transient energy of system integrated with DFIGs centralizes on the local section in the network,which results in transient instability.The transient stability is improved with wind farm integration based on DFIG into the power system.At last,branch stability index （SBIk）is introduced for estimating transient stability of the system with wind farms.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2014年第1期76-80,共5页
Proceedings of the CSU-EPSA
基金
国家自然科学基金项目(51177010)
关键词
暂态稳定
网络暂态能量
双馈风机
风电机组
支路稳定指标
transient stability
network transient energy
doubly-fed induction generator
wind turbine generator
branch stability index
