A tidal current energy water turbine array optimization method based on a gridding sea area

Abstract

The invention provides a tidal current energy water turbine array optimization method based on a gridding sea area, and the method comprises the steps of firstly, determining the sea area arrangementrange and the average flow velocity of tidal current in an arrangement area, arranging the number of water turbines, and determining the performance coefficient of the water turbines; gridding the seaarea according to the parameters of the water turbine; determining the algorithm parameters, wherein the algorithm parameters comprise the number of cross generations, the variation rate and the iteration step number; generating an initial population; crossing the individuals in the population to generate filial generations, and adding the filial generations into the population; selecting a certain number of population individual variations to generate new individuals, and adding the new individuals into the population; solving the target values of all individuals in the population; secondly,judging whether the algorithm is finished or not, if not, returning to the step of population intersection, and if yes, selecting the individual with the maximum target value as an optimization result. The sea area to be arranged is dispersed, the influence of the water turbine on the reduction of the rear flow field flow velocity and the correlation between the thrust coefficient of the water turbine and the tidal current flow velocity are considered, the consumed calculation resources are few, and the reference can be provided for preliminary design of a tidal current energy power generation airport.

Description

technical field [0001] The invention belongs to the field of ocean energy development and utilization, and in particular relates to an array optimization method for tidal current energy turbines based on gridded sea areas. Background technique [0002] With the development of society and economy, traditional fossil energy is non-renewable and seriously pollutes the environment, which cannot meet the increasing energy demand. Among many new energy sources, tidal current energy has the advantages of large reserves, predictability, and environmental friendliness. In order to fully extract tidal current energy, arrays of tidal energy turbines are often arranged in sea areas. However, the arrangement of tidal energy turbines will cause a decrease in the flow velocity of the downstream water flow field, which in turn affects the extraction of energy by the downstream turbines. Therefore, the optimization problem needs to be considered for the arrangement of the tidal current ene...

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Problems solved by technology

[0003] At present, the optimization of tidal current energy turbine arrays is often based on manual experience or numerical simulation methods. Based on manual experience, it is often impossible to obtain the optimal layout plan, and the numerical simulation method is time-consuming and consumes a lot of computing resources, which is not conducive to the tidal current energy turbines. Preliminary Design of the Array

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