摘要
水电站水力过渡过程计算中常常出现缺乏机组资料的情况,以及水轮机特性曲线处理困难等问题。通过对水轮机过流特性的研究分析,采用阀门替代水轮机组的简化方法,推导出了分别适用于增、甩负荷两种情况的计算模型。实例验证分析表明,采用阀门模型替代水轮机组边界模型进行水力过渡过程计算,结果是准确可信的,能有效地满足工程设计的要求。
The problems are often encountered in the transient calculation of hydropower station, such as no detailed unit information and difficult to deal with the characteristics curve of turbine. A simplified model is developed herein to analyze the turbine flow characteristics under the loading and unloading transient operation, in which, the turbine is treated as a valve. The case study shows that the transient calculation after using valve instead of turbine as the boundary treatment is accurate and credible and can meet the requirements of engineering design.
出处
《水力发电》
北大核心
2013年第1期51-55,共5页
Water Power
关键词
机组
阀门
简化模型
特性曲线
水轮机
unit
valve
simplified model
characteristics curve
turbine
