Operation optimization method of complex parallel cascaded pump station system

Abstract

The invention provides an operation optimization method of a complex parallel cascaded pump station system. The method comprises the following steps of: firstly, building a related optimization model, supposing that a dual-line cascaded pump station system comprises n cascaded levels of pump stations, connecting two water supply lines between the k level pump station (k = 1, 2,..., n) and the k+1 level pump station in parallel to mix the two water supply lines, and then, supplying water to a destination in two paths; and after the constraint conditions of water level, flow, pump unit head of delivery and number of pump stations to be turned on are satisfied, dispersing the to-be-optimized parameters in upper two layers by aiming at minimizing the total input power of the system pump stations and using a multilayer decomposition-dispersion method, namely, solving an in-station optimization scheme of the lower two layers by using a simulated annealing particle swarm optimization algorithm, calculating the total operation power of the whole parallel cascaded pump station system, and considering the in-station optimization scheme as the optimized operation scheme of the whole engineering system if the total operation power is lowest. The method provided by the invention can be used for operation optimization of large parallel cascaded pump stations, expectedly, can save energy by 3%-8%, makes full use of the efficiency of the pump stations, promotes establishment of harmonious society and has great social and economic benefits.

Description

technical field [0001] The invention relates to an optimization method, in particular to a method for optimizing the operation scheme of a large complex parallel cascade pumping station system, and belongs to the field of engineering system operation optimization and energy saving. Background technique [0002] The large-scale cascade pumping station system consists of power transmission and transformation, pumping station (including main unit, water inlet and outlet channels, inlet and outlet pools, auxiliary equipment and lighting, etc.), water delivery channel and other parts. During the operation optimization calculation process of the complex cascade pumping station system, it is necessary to consider the head optimization between the upper and lower cascades, the flow distribution between the parallel pumping stations and the unit operation optimization. Safe operation, the water level of the water delivery channel meets the requirements of the highest and lowest water...

AI Technical Summary

Problems solved by technology

[0003] Existing research on pumping station operation optimization usually takes the main unit as the research object, and the factors considered are not comprehensive; Flow loss due to leakage etc.

On the other hand, the research scope is single pumping station, single-line cascade pumping station or single-stage parallel pumping station, and the operation optimization of multi-line cascade pumping station system is not studied

Due to many factors such as the large number and models of cascade pumping stations, long water transfer lines, complex water delivery channels, and water distribution along the line, it is difficult to obtain high-precision operation optimization methods, which makes it difficult to make decision-making operations for cascade pumping station systems, resulting in a large amount of energy. waste, reduced economic efficiency

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