基于RT-LAB的双馈风电机组建模与仿真  

Modeling and Simulation of Doubly Fed Wind Turbine Based on RT-LAB

作　　者：王立强 曹斌[1] 王琪[1] 赵永飞[1] 郭凯 张秀琦 WANG Liqiang;CAO Bin;WANG Qi;ZHAO Yongfei;GUO Kai;ZHANG Xiuqi(Inner Mongolia Power Research Institute,Hohhot 010020,China)

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020

出　　处：《内蒙古电力技术》2020年第4期43-46,共4页Inner Mongolia Electric Power

基　　金：内蒙古电力(集团)有限责任公司科技项目“大规模新能源并网的电磁暂态平台二期扩建及仿真研究”(2019-85)。

摘　　要：针对双馈风电机组现场检测要求高、离线仿真不精确等问题,提出了应用RT-LAB仿真平台开展控制器接入的风电机组建模与仿真方法。稳态及故障状态下的仿真测试结果表明,RT-LAB仿真模型并网运行后的电压、电流、有功功率及无功功率均在正常范围内,可以利用该模型对风电机组并网特性进行评价、对控制策略进行验证。对于发生故障后,机组功率恢复过程中仿真与实测结果之间存在差异的问题,结合现场实际测试数据分析认为,差异是因仿真模型仅含有电气部分,而对风电机组的主控系统和变桨系统进行省略,故障消失后模型会立即恢复至满发状态。A wind turbine modeling and simulation method based on RT-LAB simulation platform is proposed because of the high requirements for the field detection and the inaccuracy of the off-line simulation of DFIG.The results under the steady state and fault state show that the voltage,current,active power and reactive power are in normal range after grid connected operation.The model can be used to evaluate the grid connection characteristics of wind turbine and verify the control strategy.There is a difference between the simulation results and the measured results in the process of generating unit power recovery after the fault occurs.It is because the simulation model only contains the electrical part and the main control system and pitch system of the wind turbine are omitted,the model will recover to full capacity immediately when the fault disappears.

关 键 词：双馈风电机组 RT-LAB 仿真模型 低电压过渡 模型接口 

分 类 号：TM614[电气工程—电力系统及自动化]