Annual Benefit Loss Model of Turnout Pipe in Pumped Storage Power Station
The head loss caused by bifurcated pipes in pumped storage power stations is relatively large.How to select the optimal shape of bifurcated pipes is a key problem when optimizing the shape of bifurcated pipes.The predecessors determined the optimal shape by comparing the head loss coefficient.However,the shape corresponding to the minimum head loss coefficient under the power generation condition and the pumping condition is different,and the unique solution cannot be obtained.In order to select the optimal shape of bifurcated pipe,the annual benefit loss model of bifurcated pipe in pumped-storage power station is established by analyzing the economic benefits of the power station,and it is applied to the shape optimization of bifurcated pipe guide plate.The results show that the only optimal solution of shape optimization can be obtained by the annual benefit loss model of bifurcated pipe.The model is feasible,and the guide plate can reduce the annual benefit loss of 29.75%of the bifurcated pipe in the power station.The annual benefit loss model can be used to optimize the type selection of bifurcated pipe.
Pumped storage power stationbifurcation pipeannual benefit loss modelshape optimizationdeflector