计及直流送端多类型故障的双馈型风电场等值建模  

Equivalent Modeling of DFIG Wind Farms Considering Multiple Types of Faults at the DC Sending End

作　　者：宋洁[1] SONG Jie(School of Electrical Engineering,Sichuan Water Conservancy Vocational college,Dujiangyan 611830,Sichuan,China)

机构地区：[1]四川水利职业技术学院电力工程学院,四川都江堰611830

出　　处：《科技和产业》2025年第6期42-51,共10页Science Technology and Industry

摘　　要：随着高压直流输电系统在新能源跨区传输中的应用越来越普遍,处于送端的新能源机组除了会遭受电压暂降和高电压故障,还可能面临直流换相失败带来的低高电压扰动挑战。为了准确分析风电场接入给电力系统带来的影响,首先按照国标对风电机组低电压穿越、高电压穿越以及连续低高电压穿越进行通用功率曲线建模;接着,对遭受多类故障的单机进行遍历,并对风电场内风机分群聚类;最后,基于仿真结果提出一种四机等值方法。With the increasing application of high voltage direct current transmission(HVDC)in cross regional transmission of new energy,new energy units at the transmission end may not only suffer from voltage dips and high voltage faults,but also face challenges of low and high voltage disturbances caused by DC commutation failures.In order to accurately analyze the impact of wind farm integration on the power system,a four-machine equivalent method was proposed based on doubly fed induction generator(DFIG)to adapt to multiple types of faults at the DC transmission end.Firstly,the general power curve of wind turbines was modeled for low voltage ride through,high voltage ride through,and continuous low and high voltage ride through in accordance with national standards.Next,the single machines that suffer from multiple types of faults from the cut in wind speed to the cut out wind speed was traversed,and the wind turbines in the wind farm was clustered.Finally,a four-machine equivalence method is proposed based on simulation results.

关 键 词：高压直流输电系统 双馈风机 风电场等值建模 

分 类 号：TM614[电气工程—电力系统及自动化]