考虑风机故障穿越特性的风电场建模仿真方法研究

Research on Modeling and Simulation Method ofWind Farm Considering Fault Ride-Through Characteristics ofWind Turbines

随着新能源接入电网规模越来越大,新能源对电网频率、电压等稳定问题的影响已不容忽视,对电网安全运行和新能源消纳带来巨大的挑战。考虑风电机组在故障穿越中的并网特性,建立了可用于电网稳定分析计算的风电机组参数模型,并在此基础上开展了风电场整站详细模型和等值模型搭建,通过比较故障工况下的仿真特性进行了模型评估,总结了一套可行的风电场建模仿真方法,为大电网稳定分析提供了模型参考,有效提升了电网运行水平。

With the increasing scale of new energy connected to the grid,the impact of new energy on power network frequency,voltage and other stability issues cannot be ignored,which brings huge challenges to the safe operation of the grid and new energy consumption.This paper considers the grid-connected characteristics of wind turbines in fault ride-through,builds a parameter model of wind turbines that can be used for grid stability analysis and calculation,then on this basis,establishes the detailed model and equivalent model of the whole wind farm,and finally carries out model evaluation by comparing simulation characteristics under fault conditions,summarizing a set of feasible modeling and simulation methods for wind farm,which provides a model reference for the stability analysis of large power grids,and effectively improves the operation level of the power grid.