SSR工况下600MW机组轴系扭矩响应分析  

Analysis on Torque Response of 600MW Steam-turbine Shafting at Subsynchronous Resonance

作　　者：高尚[1] 谢诞梅[1] 陈畅[1] 周彦[1] 姜伟[1] 

机构地区：[1]武汉大学动力与机械学院,武汉430072

出　　处：《汽轮机技术》2015年第5期353-356,373,共5页Turbine Technology

摘　　要：电力系统发生次同步谐振(subsynchronous resonance,SSR)会严重威胁汽轮发电机组轴系的安全。以IEEE第一标准模型为基础,首先在暂态时域仿真软件PSCAD/EMTDC中搭建了某型600MW汽轮发电机组SSR仿真模型,得到了工作频率下机组发生SSR时发电机的电磁转矩响应;其次,利用Ansys软件对轴系的扭振进行模拟,得到机组在SSR时轴颈部分的扭矩响应;最后,详细分析了SSR工况下轴系各部分的受力情况。It＇ s a threat to the shafting safety of a steam turbo-generator when power system occurs subsynchronous resonance （SSR）. Refering to the IEEE first benchmark model and a certain 600MW unit＇ s parameters, the paper builds up simulation modal and shafting modal in PSCAD/EMTDC and Ansys separately. By simulating the SSR,the paper gets the response of generator electromagnetic torque and shafting journals torque. At last, the paper calculates the shafting stress distribution.

关 键 词：次同步谐振 轴系 电磁转矩 扭矩 600MW 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]