Study On Optimal Operation Of Water Intake Pump Station In Water Head Site

In the urban water supply system,pump station engineering is the key link of the whole system,and it is also the most energy consuming link.Under the background of energy saving and emission reduction,the optimal operation of pump stations is an effective method to solve this problem.There is little research on the optimization of water intake pump station in water head site,especially the optimization of pump station in the well group.It needs to consider not only the optimization of the pump in the station,but also the inter-well flow distribution and the head loss of the confluence pipe network.In this paper,the optimal operation of reservoir water intake pump station and well group pumping station are studied respectively,which provides a reference for the optimization problem of water intake pumping station,and extends the new idea of optimization problem of well group pumping station.The main contents and research results are as follows:In this paper,the optimal scheduling model of the reservoir pump station is established under the condition of certain pump station discharge,and the genetic algorithm is used to write the optimization program to solve the pump station economic operation plan.According to the actual engineering case,the optimal operation scheme of pump station is calculated under the system condition that reservoir is at the lowest water level and different daily water supply or the reservoir is at the constant water level and different daily water supply and the pump opening arrangement and speed regulating pump speed regulation is obtained.The results show that the optimal scheduling program has a good practical application benefit.This paper also studies the optimal scheduling problem of the well group pumping station.The optimal two-level mathematical model of well group pumping station with the goal of minimum power of pumping station.The dynamic programming method,enumerating method and genetic algorithm are put forward to solve the model.Based on the basic data of well group pump station,the optimal operation model of first stage well group pump station is established,and the optimization mathematical model of well group pump station is solved byusing different algorithms.Compared with the original operation scheme,the new operation scheme is energy-saving by 4.7%.On this basis,it is proposed to use the linear scheduling and dynamic programming joint scheduling program to solve the problem of pump station efficiency reduction caused by fluctuation of water demand,and calculate the time schedule of the operation plan of the well group pump station under the fluctuation of daily water supply.