直驱永磁风力发电机绕组短路保护研究  

Research on winding short circuit protection for direct-driven permanent magnet wind turbine generator

作　　者：王春亮[1,2] 何山[1,2] 王维庆[1,2] 程静[1,2] 文龙[1,2] 

机构地区：[1]新疆大学电气工程学院,乌鲁木齐830049 [2]可再生能源发电与并网技术教育部工程研究中心,乌鲁木齐830049

出　　处：《黑龙江电力》2017年第2期114-119,共6页Heilongjiang Electric Power

摘　　要：随着风电机组单机容量越来越大,对其配置有效的保护具有重要的意义。笔者以1.5 MW直驱永磁风力发电机绕组为研究对象,重点研究了其匝间及单相接地短路故障,并基于ANSOFT MAXWELL暂态仿真得到故障前后绕组电流的波形,分析其特征。对不同匝数的绕组短路故障进行了仿真,对比分析得出故障前后电流变化趋势,为永磁发电机绕组短路故障设计有效的保护方案,提出了夯实依据。As the wind turbine unit capacity is more and more gigantic, the effective protection on the its configuration is of great significance. Taking the winding of 1.5 MW direct - driven permanent magnet wind generator as the research object, the interturn and single -phase ground short circuit faults are researched as the priority. The waveform of winding current before and after the fault is obtained based on the ANSOFT MAXWELL transient simu- lation, its characteristics are analyzed and the fault feature is found according to the characteristics of the stator current. The simulation on winding short - circuit fault on different number of turns is made and the comparative analysis is made to get the changing trend of electric current before and after the fault, which provides the solid foundation for the protection scheme of the short - circuit fault of permanent magnet generator.

关 键 词：直驱永磁发电机 数学模型 绕组短路计算 ANSOFT暂态仿真 主保护配置 

分 类 号：TM315[电气工程—电机]