多布水电站高海拔灯泡贯流水轮发电机设计概述

Overview of High-altitude Bulb Tubular-turbine Generator Design for DuoBu Hydropower Station

摘要:

介绍了多布水电站高海拔灯泡贯流水轮发电机的电磁设计和主要结构设计特点。针对电站高海拔情况，通 过电磁优化设计、定子防晕与绝缘海拔修正、转子磁极优化设计和通风冷却系统选择合适的轴流风机，解决了在高海 拔地区水轮发电机易起晕、放电和散热困难等难题。

Abstract:

The characteristics of electromagnetic design and main structure design for high － altitude bulb tubular － turbine generator of DuoBu hydropower station are introduced． Aiming at the station in high altitude area，the difficult problems，that is， the corona is easily produced and it has difficulty with discharge and heat dissipation，are solved through the electromagnetic optimization design，the corona proof and insulation altitude correction of stator，the pole optimization design of rotor，and selecting appropriate axial fan for ventilation system．