双馈风力发电机组全运行工况与快速启动电磁暂态建模  

Transient Modeling of Doubly-fed Induction Generator Based Wind Turbine on Full Operation and Rapid Starting Condition

作　　者：颜湘武[1] 崔森 孙雪薇 孙颖[1] 宋子君 刘文焯 曹斌[3] 李铁成 YAN Xiangwu;CUI Sen;SUN Xuewei;SUN Ying;SONG Zijun;LIU Wenzhuo;CAO Bin;LI Tiecheng(Key Laboratory of Distributed Energy Storage and Micro-grid of Hebei Province(North China Electric Power University),Baoding 071003,Hebei Province,China;State Key Laboratory of Power Grid Safety and Energy Conservation(China Electric Power Research Institute),Haidian District,Beijing 100192,China;Inner Mongolia Electric Power Research Institute,Hohhot 010020,Inner Mongolia Autonomous Region,China;State Grid Hebei Electric Power Research Institute,Shijiazhuang 050021,Hebei Province,China)

机构地区：[1]河北省分布式储能与微网重点实验室(华北电力大学),河北省保定市071003 [2]电网安全与节能国家重点实验室(中国电力科学研究院有限公司),北京市海淀区100192 [3]内蒙古电力科学研究院,内蒙古自治区呼和浩特市010020 [4]国网河北省电力有限公司电力科学研究院,河北省石家庄市050021

出　　处：《电网技术》2021年第4期1250-1257,共8页Power System Technology

基　　金：国家电网有限公司总部科技项目(SGHEDK00DYJS19-00061)。

摘　　要：随着高比例新能源风电机组渗透率的不断提高,其接入电力系统对电网的安全稳定运行具有重要的影响,故建立精确的电磁暂态仿真模型对研究风电机组本身和并网系统的静暂态稳定特性尤为重要。基于现场低电压穿越实验实测数据,结合实际曲线确定双馈风电机组的动作特性及控制策略,采用改进的遗传算法对双馈风力发电机本体参数、风机功率控制参数以及低电压穿越保护装置Crowbar的电阻值进行参数辨识,并结合风机生产厂商提供的电气参数,建立了中国蒙西某风电场实际双馈风电机组的全运行工况下快速启动的精确电磁暂态仿真模型,可实现在全风速范围内,风电机组启动后1 s内快速进入稳定运行状态。最后通过数据比对验证了所提出的参数识别方法能够反映实际风电的关键特性,所建立的电磁暂态仿真模型准确无误,具有较好的实际应用价值。With the continuous increase in the penetration rate of a high proportion of wind turbines, after it is connected to the power system, it has an important impact on the safe and stable operation of the power grid. In a power grid with wind turbines, the establishment of an accurate electromagnetic transient simulation model is particularly important for the study of the static transient stability characteristics of the wind turbines and the grid-connected systems. In this paper, an accurate electromagnetic transient simulation model for fast start-up of a real doubly fed wind turbine in a wind farm in the western inner-Mongolia is established. Firstly, the field data of low voltage ride are obtained through experiment. Combined with the actual curves, the action characteristics and the control strategy of the doubly fed wind turbine are determined. Then the parameters of the doubly fed wind turbine motor, the fan power control and the resistance of crowbar are identified with the improved genetic algorithm. This model can realize the stable operation state of the wind turbines within 1 s after starting in the full wind speed range. Finally, through data comparison, it is verified that the proposed parameter identification method can reflect the key characteristics of the actual wind power, and the established electromagnetic transient simulation model is accurate and it has good practical application value.

关 键 词：双馈风电 实测数据 改进遗传算法 全风速 初始化 

分 类 号：TM721[电气工程—电力系统及自动化]