基于特征结构分析法的风电系统静态电压稳定分析

摘要

针对风电场（基于异步风电机组构成）并网对原有电力系统静态电压稳定性的影响，结合异步发电机组的无功－电压特性，采用收敛潮流雅克比矩阵特征结构分析法，分析风电场的接入对系统静态电压稳定性的影响。在标准IEEE－30节点系统中并入风电场进行仿真分析，研究表明风电场的接入使得原有系统静态稳定裕度降低，弱稳区域扩大，负荷裕度降低。与其他方法相比此方法更好的实用性和灵活性，适用于大型电力系统。%For the impact of integration wind farm ( based on asynchronous wind turbines constitute ) on static voltage stability of power system and combining with asynchronous generators reactive-voltage characteristics , eigenvalue structure analysis of convergence flow Jacobian martrix is employed to analyze the influence of wind farm access to the system static voltage stability .In this paper , the standard IEEE-30 bus nodes system is incorporated into the simula-tion analysis of wind farms .Studies have shown that access to the original system of wind farms makes the static stabil -ity reduced, weakly stable regions expanded and the load margin reduced .This method is better on the practicality and flexibility compared with other methods , which is suitable for large-scale power systems .