本文针对三峡水轮机运行水头变幅大,对不同水头下的运行特性作了初步分析。指出三峡水轮机在低水头下运行问题不大,在高水头下运行有危险,应慎重对待。文章提出“综合评价”法,从高水头运行稳定性,低水头运行出力储备,抗磨损性能等三峡关键因素入手,综合评价水轮机水力参数,力求在水头已确定的前提下能推荐出一个较理想方案。 In this paper, according to the large amplitude of the head of the Three Gorges turbine running, preliminary analysis is made on the operating characteristics under different head. He pointed out that it is not a big problem for the Three Gorges hydropower turbine to run at low water head. It is dangerous to run under high water head and should be treated with caution. The article puts forward the method of “comprehensive evaluation”, starting with the key factors of the Three Gorges, such as high head running stability, low head running output reserve, antiwear performance and so on, and comprehensively evaluates the hydraulic parameters of the turbine, trying to recommend a More ideal solution.