Optimal allocation of water resources with two-level channel based on improved particle swarm optimization algorithm
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DOI:10.7606/j.issn.1000-7601.2019.04.04
Key Words: optimal allocation of water resources  water distribution in channel system  water distribution grouping  particle swarm optimization algorithm  simulated annealing algorithm  genetic algorithm
Author NameAffiliation
WANG Qing-jie College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China 
YUE Chun-fang College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China 
LI Yi-zhen College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China 
LIU Xiao-fei Guiyang Survey and Design Institute, China Electric Power Construction Group, Guiyang, Guizhou 550081 
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Abstract:
      The existing water distribution model of the channel system is very effective in reducing the loss of water distribution, but there are still some shortages in the process of water distribution, such as the instability of water transportation and the large amount of abandoned water. In this paper, the water distribution mode of “inter-group continued irrigation and intra-group rotation irrigation” in water distribution process was changed into “inter-group rotation irrigation and intra-group continued irrigation”. The minimum leakage loss in water allocation process was taken as the goal to establish the water allocation model for channel system, and an improved particle swarm optimization algorithm was applied to solve it to find the optimal water distribution scheme and homogenization of the water allocation time of the rotation irrigation channel in each irrigation scheme. The Zhangye West dredge irrigation area was selected as the research object, and the results showed that on the premise of ensuring the need of actual operation, Compared with the actual water distribution plan at the same period, the cycle reduced 13.4 days and the canal water use efficientcy improved from 0.651 to 0.828. During the water distribution week, the allocated discharge in superior canal was equalization. In each irrigation group, the channels worked at the same time, which reduced the abandoned water in the channels. In conclusion, this model can realize centralized and efficient water distribution, and the decision-making can be provided for the irrigation management department to make optimal water distribution plan.
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