直驱与双馈风电机组的故障特性对比分析  

A comparative analysis of the fault characteristic of D-PMSG and DFIG

作　　者：石岩[1] 李凤婷[1] 蒋燕[2] 

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830047 [2]新疆电力公司昌吉电业局,新疆昌吉831100

出　　处：《可再生能源》2012年第8期53-58,共6页Renewable Energy Resources

基　　金：国家自然科学基金项目(50967004)

摘　　要：基于PSCAD软件建立了直驱永磁同步风电机组(D-PMSG)和双馈感应式风电机组(DFIG)的暂态仿真模型,对比分析了D-PMSG和DFIG风电机组在单相、三相短路故障下的故障特性。仿真结果表明:D-PMSG在电网发生故障时能向电网提供几乎恒定的持续故障电流和一定的无功支持;DFIG在电网发生故障时能提供持续的故障电流,但故障电流呈衰减特性。Based on PSCAD/EMTDC, simulation models of D-PMSG and DIFG are built. A comparative analysis of the fault characteristic between D-PMSG and DFIG is made. By use of PSCAD/EMT- DC, the dynamic stability of D-PSMG and DIFG with considering grid-side fault is simulated. Simulation results show that： D-PMSG can provide mostly constant fault current and sent an amount of reactive power support to the grid when power failure ; DFIG can take persistent fault current at the same time, but the current is at the attenuation characteristics.

关 键 词：D—PMSG DFIG 单相故障 三相故障 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程] TM35[电气工程—电机]