中文摘要：

随着风力发电机组单机容量和风电场建设规模都日益扩大,建立较高精度的风电场模型会较好的反映电力系统实际运行状况。针对风电场模型的复杂性、不确定性等问题,提出一种基于双馈风力发电机的风电场模型,通过对风机工作原理的深入分析,应用等值建模法对其进行建模。通过仿真分析不同工况下电网对风电场的影响,仿真结果表明,在不同工况下,电网对风电场频率的影响不大,对电场有功功率、无功功率有较大影响。验证了该模型有效性的同时,能较好反映其具体特性。

英文摘要：

At present,the scale of wind turbine generating capacity and wind farm construction is increasing,and the correct wind farm model will reflect the actual operation of the power system.Therefore,aiming at the complexity and uncertainty of wind farm model,it presents a in-depth analysis of the work principle of the wind turbine and applies an equivalent modeling method to build the modeling which based on DFIG wind farm model.Through the simulation and analysis of the influence of the power grid on the wind farm under different conditions,the simulation results show that,under different conditions,the power grid has little effect on the frequency of wind farm,which has great influence on the active power and reactive power of the electric field.it is verified that the model is effective and can reflect the specific characteristics of the model.