锦屏一级水轮发电机选型计算与性能分析  

Design and Analysis of Jinping I Hydro-Generator

作　　者：刘新天[1] 乔照威[1] 陈森林[2] LIU Xintian;QIAO Zhaowei;CHEN Senlin(Harbin Electric Machinery Company Limited,Harbin 150040,Heilongjiang,China;State Key Laboratory of Eco-Hydraulic in Northwest Arid Region of China,Xi’an University of Technology,Xi’an 710048,Shaanxi,China)

机构地区：[1]哈尔滨电机厂有限责任公司,黑龙江哈尔滨150040 [2]西安理工大学西北旱区生态水利国家重点实验室,陕西西安710048

出　　处：《电网与清洁能源》2019年第4期66-70,共5页Power System and Clean Energy

基　　金：国家自然科学基金项目(51527808)~~

摘　　要：锦屏一级水轮发电机额定出力为600 MW,额定转速142.9 r/min。通过对水轮发电机主要尺寸、支路数、槽电流、电负荷、定子槽数等进行分析,确定了水轮发电机电磁方案。在此基础上,分别从电压波形畸变系数、阻尼绕组稳态和瞬态特性、定子线棒换位、误同期并网、定子绕组端部电动力、短路电流等方面进行性能分析,论证水轮发电机设计方案的合理性与可靠性。机组运行结果表明,锦屏一级发电机的各项性能指标均优于国家标准GB/T 7894。The rated capacity of Jinping I hydro-generator is 600 MW,and the rated speed is 142.9r/min.In this paper,the electromagnetic scheme of the hydro-generator is determined af ter analyzing the main sizes,number of parallel circuits,slot cur rent,linear current density and slot number.On this basis,the performance analysis is made on the voltage distortion,stable and transient characteristics of the damp winding,stator bar transposition,out-of-phase synchronization,ending electromag netic force of the stator winding and short-circuit current,which proves the reasonability and reliability of the design scheme.The operation results show that Jinping I hydro-generator outper forms all the applicable codes and standards in GB/T 7894.

关 键 词：锦屏一级 水轮发电机 电磁 性能分析 

分 类 号：TM312[电气工程—电机]