Daily optimization regulation control method for water conveying systems of step pump stations

Abstract

The invention relates to a daily optimization regulation control method for water conveying systems of step pump stations. The method comprises the steps of establishing a hydraulic simulation model and calculating water head loss; performing optimization distribution on flow of a unit in each pump station; performing optimization distribution on lift of each pump station in the step pump stations; and performing optimization distribution on water diversion volume at each time period in a day. According to the method, the optimization regulation control problem of the water conveying systems of the multi-constraint and multi-target step pump stations is taken as a research object, storage ponds, channels and the step pump stations are comprehensively considered, the hydraulic simulation model and a large system decomposition-coordination method are synthesized, and a daily optimization regulation control mode for a water diversion project is established, so that scientific bases and technical support can be provided for actual regulation control. Compared with the prior art, the method has the characteristics that the constraints such as the storage constraints of the storage ponds, the water head loss of the channels, the total lift of the step pump stations and the like are provided, so that the constraint conditions of project regulation control can better meet the requirements of the water conveying systems in the water diversion project; and the economic benefits of the water conveying systems are maximized by taking the minimum sum of abandoned water and the total electricity fee of the step pump stations as a target function.

Description

technical field [0001] The present invention designs a daily optimization and control method for the water delivery system of the cascade pumping station, and in particular relates to an optimization and control technology for the water delivery system of the cascade pumping station considering the regulation and storage capacity of the storage tank, the water delivery loss of the channel and the constraints of the total lift of the cascade pumping station . Background technique [0002] Water diversion projects are an important means for humans to redistribute water resources in time and space. They can solve regional water resource crises, improve regional ecological environments, and support sustainable economic and social development. Storage tanks, channels and cascade pumping stations are an important part of the water delivery system. Using daily optimization to regulate the operation of the cascade pumping station water delivery system has the characteristics of low...

AI Technical Summary

Problems solved by technology

However, the optimization and control of the existing cascade pumping station water delivery system only considers the constraints of pumping station unit flow, power, and the total amount of water transfer. The storage capacity of the pool (possibly resulting in abandoned water), the loss of channel water delivery and the constraints of the total head of the cascade pumping station, and the working conditions that do not consider the total amount of daily water transfer

For the cascade pumping station water delivery system with volume-constrained storage tanks and total lift constraints, the existing methods cannot comprehensively and accurately simulate the daily optimal control process of the cascade pumping station water delivery system, so they cannot be applied to such projects with multiple constraints, Multi-objective optimization regulation

Images