【摘要】 针对传统灌区渠道输水损失大、配水流量和配水时间不合理等问题,对灌区渠道输、配水作优化调度研究。以富裕灌区为例,运用带精英策略非支配排序遗传算法,考虑配水流量和配水时间不确定性,以灌区渠道输水损失最小及干渠水位变化均匀为优化目标,建立干、支渠道配水优化调度模型。结果表明,在满足上述优化目标前提下,优化结果与灌区原配水计划相比,干渠各生育阶段配水时间由15、35、20、18 d缩短至12、27、17、16 d,且各支渠在各时期流量变化浮动较小,流速均满足不冲、不淤流速要求。该模型可为富裕灌区及类似灌区水资源优化调度提供理论依据。更多还原

【Abstract】 In view of the traditional problems such as high water loss, unreasonable water distribution flow and water distribution time in irrigation area, the optimal scheduling of water distribution in irrigation area was studied. Taking the rich irrigation area as an example, the non-dominant sequencing genetic algorithm with elite strategy was applied, and the uncertainty of water distribution flow and time was fully taken into account. The optimal scheduling model of water distribution in dry and branch channels was established with the optimization objective of minimum water loss in the irrigation area and even change of water level in the main channel. The results showed that, on the premise of meeting the above optimization objectives, compared with the original water distribution plan in the irrigated area, the water distribution time of the main canal in each growth stage was shortened from 15,35, 20 and 18 days to 12, 27, 17 and 16 days. In addition, the flow rate of each branch canal varied little in each period, and the flow rate all met the requirements of non-flushing and non-silting flow rate. This model can provide theoretical basis for the optimal scheduling of water resources in rich irrigated areas and similar irrigated areas.更多还原