基于风速的风电系统输出特性建模研究

随着风电建设规模的不断扩大，风电系统的准确建模对于风电系统输出电流、电压和功率的预测至关重要。从小型风电系统的基本风能转换过程出发，建立了风机叶片、双馈感应发电机和风速模型，通过对比风电系统输出电流、电压、功率的方式，比较了3种风速模型的仿真效果。研究结果表明，基于ZA型和SB型正态分布的风速模型，得到的风电系统输出电流、电压和功率最为稳定，适用于小型风电系统的建模和预测。

Research on wind power system output characteristics modeling based on wind speed

With the expansion of wind power construction scale，the accurate modeling of wind power system is very important for the prediction of output current，voltage and power of wind power system.In this paper，the wind turbine blades，doubly fed induction generators and wind speed models were established based on the basic wind energy conversion process of small wind power system.The simulation results of three wind speed models were compared by comparing the output current，voltage and power of wind power system.The results showed that the wind power system output current，voltage and power are the most stable based on the wind speed model of ZA and SB normal distribution，which is suitable for modeling and forecasting small wind power system.