中文摘要：

以PSCAD/EMTDC为平台建立了仿真模型,分析了以恒速异步风力发电机组为主的风电场并网运行的不同故障情况下的短路特性。仿真结果表明,影响短路特性的主要因素有故障类型、故障点、控制策略、风速等。因此,应针对风电场不同的短路特性采取相应的保护措施,以提高电网的稳定性。

英文摘要：

A simulation model is established on the PSCAD/EMTDC platform,the performance of faulty in different running manners are analyzed when connecting wind generator into power grid.The result of simulation show that the major factors that influence the fault characteristics are faulty type,faulty location,control manner and wind speed and etc.Consequently,when the faulty occurs in the power grid,different protection strategies should be adopted for matching the different faulty characteristics in order to enhance the stability of power system.