双馈风力发电系统在电网故障下的动态响应分析  

DYNAMIC RESPONSE OF WIND POWER GENERATION BASED ON DFIG UNDER GRID FAULT

作　　者：郭家虎[1,2] 张鲁华[1] 蔡旭[1] 

机构地区：[1]上海交通大学风力发电研究中心,上海200240 [2]安徽理工大学自动化系,淮南232001

出　　处：《太阳能学报》2010年第8期1023-1029,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(50907001);中国博士后基金(20090450692);上海博士后科研资助计划(09R21414000)

摘　　要：该文在建立电网故障时双馈发电机定子电压空间矢量模型的基础上,对双馈感应发电机以及变换器在电网不对称故障及对称故障时的动态响应特性进行了详细的定量和定性分析,揭示了双馈发电系统暂态故障响应的本质及各电磁量的变化规律。推导出了双馈发电机电网故障电流的最大值及其发生时刻。并在此基础上,提出了实现风电机组故障穿越技术的基本准则。The ability of grid fault ride-through is the key problem in the future wind power generation. The response of DFIG and converter in the case of grid fault including symmetrical and unsymmetrical fault were considered. First, the simple space vector models were presented to estimate the rule of DFIG stator voltage in different grid fault. Then with the symmetrical components method, the dynamic response of DFIG and converter in grid fault was developed in details, and the maximum value of the fault current of DFIG was determined. At last, the design guidelines for riding through the grid fault were proposed.

关 键 词：双馈风力发电系统 对称分量法 动态响应 故障穿越 

分 类 号：TM315[电气工程—电机]