考虑水电站水力瞬变流特性的水轮机选型  

Turbine Type Selection Considering Fluid Transients Characteristics of Hydropower Station

作　　者：刘俊平[1] 周建旭[1] 乔艳伟[1] 张松磊[1] 

机构地区：[1]河海大学水利水电学院,江苏南京210098

出　　处：《水电能源科学》2014年第12期135-138,98,共5页Water Resources and Power

基　　金：国家自然科学基金项目(90610027;51079051)

摘　　要：针对不同的水轮机比选型式对长引水式水电站水力—机械系统的水力瞬变流分析与控制存在不同程度影响的问题,基于水力瞬变流计算和稳定性分析仿真模型,从水电站水力—机械系统瞬变流特性角度探讨了水轮机选型中的关键技术问题和研究方法,以全面掌握不同水轮机比选型式的水力特性及其对水力瞬变流的影响。结合长引水式水电站,考虑两种不同的水轮机比选型式,分析了同一水轮机在不同工况点及不同水轮机在相近工况点运行对调节保证参数和运行稳定性分析的影响程度,为水轮机的优化选型提供了可靠依据。For long diversion type hydropower station, different optional turbine＇s types nave aulerent tmpacL cfluid transients analysis and control of its hydro-mechanical system. Based on the simulation model of fluid transientscomputation and stability analysis, the key problems and corresponding methods for turbine＇s type selection were dis-cussed from the viewpoint of fluid transients analysis in hydropower station so that the impact of different optional turbinetypes on fluid transients can be fully understood. For long diversion type hydropower station, considering two differentoptional turbines under different characteristic operating points, the impact on the main parameters of guaranteed regula-tion computation and stability analysis were comprehensively analyzed, which provides reliable bases for type selection ofhydraulic turbine.

关 键 词：水轮机 选型 瞬变流 特征线法 调节保证计算 

分 类 号：TV74[水利工程—水利水电工程]