考虑尾流效应及连接架构的风电场等值方法研究

Study on the wind farm equivalent method considering wake effect and connection structure

对大型风电场进行完整的仿真分析会消耗巨大的时间成本。文章提出了一种基于尾流效应和连接架构的风电场等值法,考虑了风机位置对输入风速的影响,最大程度地保留了原有结构和性能,建立了简单准确的等值模型。分析了容量加权法的误差及原因,提出了根据风电场连接架构对风机群进行考虑尾流效应的分组方法,并通过容量加权法对分组进行参数聚合。通过Matlab/Simulink建立仿真模型,结果表明,所提模型的各项性能在不同风向下均能与原模型性能相近,具有较高的精确度和适应度。

Large wind farms may contain hundreds of wind turbines,and the time cost of performing a complete simulation analysis of wind farms is huge.This paper proposes a wind farm equivalent method based on tail effect and connection structure,considering the influence of the fan position on the input wind speed,and establishing a simple and accurate equivalent model while retaining the original structure and performance.The error and reason of capacity weighted method are analyzed,consider the connection structure,and perform the parameter aggregation.Establishing the simulation model through Matlab/Simulink,the results show that the performance of the proposed model is similar to the original model in different wind directions and has high accuracy and fitness.