Research on Optimal Water Distribution Model of Canal System Based on Improved PSO-GWO Algorithm
In order to reduce the water loss in the process of water distribution in the canal system and in response to the issues of different gate regulation times and frequent opening and closing,the paper established a water distribution model of Tuanjie Branch canal in Jinghe ir-rigation area with the aim of minimizing the leakage loss of the two-stage canal system.It adopted the water distribution method of"inter-group rotational irrigation and intra-group continuous irrigation"for the first time,and solved the objective function by improved PSO-GWO algorithm,so as to determine the optimal rotation irrigation group,water distribution flow,and irrigation time and other important parameters of the branch canal,and obtained the leakage loss of the canal system and the number of iterations of the algorithm,then compared the re-sults with those of the particle swarm algorithm and the gray wolf algorithm.The improved model had shortened the irrigation time 0.62 days,increased the water utilization coefficient of the two-level canal system by 0.168,improved the iteration times of the PSO-GWO algorithm by 3 times,and reduced the total amount of canal leakage by 166 900 cubic meters,which was better than the water distribution results of the tra-ditional algorithm.The results show that the improved algorithm has stronger optimization ability and convergence,and the model can meet the requirements of high efficiency water distribution,reduce the number of gates opening and closing,realize centralized regulation and con-venient water distribution mode,which has high application value.
water distribution in channel systemwater seepagerotation irrigation groupimproved PSO-GWO algorithmparticle swarm optimizationgrey wolf algorithm
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