水电站引水发电系统过渡过程整体物理模型试验探讨

水电站引水发电系统过渡过程是流体、机械、电气、甚至结构相互耦合的复杂的动态过程 ,现有的将水、机、电分开研究的方法及成果无法满足大型长输水道地下式水电站设计和运行的需要 ,所以需要开展水电站过渡过程整体性物理模拟。本文作为初步的探讨 ,着重介绍模型比尺、水机电整体模拟、控制测试以及大波动、小波动和水力干扰等过渡过程的试验结果 ,并与数值仿真计算结果对比

Study on the physical simulation of transient process in conduits of hydropower stations

The transient process in the conduits of hydropower stations is a very complicated dynamic procedure coupled with fluid,machines,electricity,and even structure.The current methods used to analyze them separately cannot satisfy the design and the operation requirements of those large underground stations with long conduits.So it is necessary to develop a global physical simulation for the power station transients.As an initial discuss,this paper focuses on the introduction of model scale of similarity,integral simulation with fluid,machines and electricity,transients control and measurement,and some experimental results about great fluctuation,small fluctuation and hydraulic interference in transient process.The comparison of experimental and computational results is presented in this paper.