摘要
为了提高抽水蓄能电站过渡过程动态仿真计算的精确性,本文研究了Suter变换及其改进方法的优缺点,深入分析了各单位量之间的相互联系,将相对开度y引入自变量,根据曲线变化趋势引入常数项修正系数,优化数学变换形式,最终提出一种新的水泵水轮机全特性曲线处理方法,并将该方法用于具体工程实例计算中,计算结果与实际试验数据较为一致,证明了本文提出的新方法是实用、有效的。
To improve accuracy of transient process dynamic simulation for pump-storage power plant, in this work we studied advantages and disadvantages of the Suter transformation and its modifications, analyzed in depth the interconnection between unit flows, and introduced a new independent variable of relative opening. Then, an optimized form of this transformation was derived by adopting coefficients of constant correction according to the variation trend of the curves. This leads to our development of a new method for processing pump turbine characteristic curve. Application of this method to an engineering calculation shows an agreement of the results with the experimental data as well as its applicability and efficiency.
出处
《水力发电学报》
EI
CSCD
北大核心
2015年第3期164-169,共6页
Journal of Hydroelectric Engineering
关键词
水力机械
全特性曲线
数值计算
水泵水轮机
过渡过程
hydraulic machinery
complete characteristic curves
numerical calculation
pump-turbine
transient process
