According to optimization theory and pump design theory, combined with modern monitoring technology, the optimal scheduling strategy of pumping station is formulated and practical expert system software is formed. It is of great significance to optimize pumping station scheduling and pump station energy saving. Confirmation of scheduling optimization target system and constraints and efficiency Analysis of energy consumption Pumping station scheduling and control is based on the speed and the number of switches to carry out, and some are also supplemented by flow control valve control. Compared with the change of inflow of forebay, the transient process of these actions is very short and can be considered as instantaneous completion, so it can be considered as a static optimization problem. Normally, we aim to minimize the error between the pump outlet flow rate and the nominal flow of the nameplate, and restrict the pump speed as much as possible to the high-efficiency operation. Therefore insist on the pursuit of flow meter display the same value and rated flow. The pumping station optimization method is the minimum power consumption as the goal, the pump speed only by the governor and pump physical properties of their own control, so you can maximize the efficiency of pump equipment to achieve maximum efficiency. Of course, the pump station should also accurately reflect the actual flow, and real-time delivery to the control room, in order to facilitate the global optimization of scheduling. It should be noted that the pumping station efficiency and energy consumption measurement results and test the pumping station operating conditions such as head changes and the length of the test time. When the number of pump sets to switch the same kind of pump linkage optimal decision In this way to consider the establishment of optimal decision-making, we must first solve the optimal number of operational issues, the current more general calculation method is based on a plan conversion, the January plan by a certain step For a number of districts, first fixed change, and then change, point-by-point search for efficient operation of the number of conversion points. Calculating the pumping station based on the empirical formula, compared to different numbers of power search value from increasing, the number of running by increasing, you can get the conversion point connected to the corresponding conversion point, the conversion area. To this end, the corresponding program can be compiled to calculate the optimal number of runs in any month, power consumption and efficiency, but also draws a high number of switching zones graph these results can be used for manual scheduling, to determine the work area where , You can send the number of operating instructions. Computer real-time control, the results will be deposited into the water supply and drainage, you can distribute control functions, issued by the number of operating instructions to control operation. According to the actual operating experience, the use of pump speed control and switching the number of units can receive the best overall energy-saving effect, we usually use constant speed pump and speed control pump linkage operation. When running with speed regulating pump, it will produce the variation of unit efficiency. As the speed control pump is often a large capacity pump. Generally speaking, this method can make the pump work in a plane any point, but it can not make the pump work in the highest efficiency point, so the energy-saving effect is worse. The optimal decision-making idea is roughly the same as the previous one. When the pump is selected, the pump is divided into two groups: the speed regulating pump and the constant speed pump, and the speed adjusting pump is selected first according to the previous method. Constant speed pump at a certain outlet pressure command value, only to provide a value corresponding to the flow rate, and therefore there is no optimal relative speed and tribute with the optimal flow 'problem. When all pumps are selected, the total flow rate may be greater or less than the flow rate command value. , Then, only by adjusting the pump deviation from the optimal state to meet the requirements. When the pump speed changes, the pump flow, head, shaft power, etc. also changed accordingly. Therefore, by adjusting the pump speed, to achieve the purpose of regulating the pump operating conditions. According to the characteristics of the pump itself, the general speed of the variable speed pump operation does not exceed the rated speed, the deceleration does not exceed the rated speed. Too much overspeed, the pump mechanical performance often can not meet the requirements decelerating too much, the pump performance decline too much. Peng Yue Pu pump speed governor speed control mode for the level of speed, speed respectively, rated speed, the maximum deceleration for the rated speed. Adopt and two speed regulating units, can well meet the requirements of traffic changes. On the one hand to avoid frequent unit open and stop, extend the life of the unit, to facilitate the operation and management; on the other hand after speed operation can make the unit always in the high efficiency zone operation, to improve the efficiency of pump unit and pumping station efficiency, energy saving purpose. In the single unit operation, the optimal scheduling mainly consider the pump unit efficiency. Its optimization technology is complex, the calculation is very large, do not discuss here Conclusion Large drainage pumping station optimal scheduling and drainage pumping station operation in the general line of instruction compared to more substantial energy savings, according to the optimization Combination program, Penglao Pu pumping station boot, water pressure, water flow, total power consumption to test, according to the water level in the pool to calculate the working lift of the pump, and then according to the pump operating characteristic curve, calculate the economy of the pump Operating conditions point. After determining the flow requirements of a single pump, then according to the total inbound traffic according to the previous control cycle effluent flow of the cycle of inbound traffic forecasts to calculate the number of pumps. This does not need to transform the original equipment, energy-saving benefits of obvious. To be included in the automation control system, the pump station can be the optimal scheduling control.