刘家峡5号机组水轮机能量特性试验研究

Turbine Energy Characteristic Test Research on No.5 Generator Unit of Liujiaxia

水轮机能量特性试验是评价水轮机性能的重要指标,利用模型综合特性曲线通过相似理论换算所得的水轮机运转特性曲线是否能正确地反映原型机组的运行性能,是行业关心的一个重要问题。文中详细介绍了对刘家峡5号机组扩修前后进行水轮机绝对效率试验的研究情况,包括试验方法、标准、测量参数,误差分析,以及试验数据整理和分析,并对扩修前后的水轮机能量特性进行了对比分析,其结果对提高电厂及整个电网的安全经济运行具有一定的参考价值。

Turbine energy characteristic test is one of the important indices for water turbine performance evaluation. It is a concerned question that whether the operating characteristic curve transformed from the integrated characteristic curve of turbine model through analogical theory can reflect the capability of hydranlic turbine exactly. This paper introduces in detail the Liujiaxia before and after the No. 5 generator unit to expand the research situation of hydraulic turbine efficiency test absolutely including test method,standard and measurement parameters, the error analysis, and test data collection and analysis, and the turbine power characteristics of before and after to expand through the contrast analysis. The result to improve the safe and economic operation of power plant and the entire power grid has a certain reference value.