基于模糊控制虚拟电阻的双馈风力发电机低电压穿越励磁控制  

Low Voltage Ride Through Excitation Control for Doubly fed Wind Generator Based on FuzzyControl Virtual Resistance

作　　者：杨琦[1] 李岚[1] 赵荣理[1] 杨旭[1] 赵楠[1] 侯传羽 YANG Qi;LI Lan;ZHAO Rongli;YANG Xu;ZHAO Nan;HOU Chuanyu(Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学,太原030024

出　　处：《电力电容器与无功补偿》2020年第2期158-163,共6页Power Capacitor & Reactive Power Compensation

基　　金：山西省自然科学基金(201701D121130)。

摘　　要：为拓宽双馈风力发电机的低电压穿越范围,本文在传统虚拟电阻的基础上引入模糊控制方法来调节虚拟电阻阻值,使其在故障期间可跟随系统的动态变化,能在限制转子电流峰值的同时保证转子电压不超出允许值,且对于较深程度的电压跌落也具有较好的控制效果。在Matlab/Simulink平台搭建仿真模型,仿真结果验证了该控制策略的有效性。For broadening the low voltage ride through range of double-fed wind generator,in this paper,the fuzzy control method is introduced based on the traditional virtual resistance so to follow the dynamic variation of system during the fault period and,at the time of limiting the peak of rotor current,assure the rotor voltage within the permitted value as well as have better control effect for the deep voltage drop.The simulation model is set up by the Matab/Simulink platform and the effectiveness of the control strategy is verified by the simulation result.

关 键 词：双馈风力发电机(DFIG) 低电压穿越(LVRT) 虚拟电阻 

分 类 号：TM315[电气工程—电机]