基于混合分水方案的水库群联合供水优化调度规则OA

The joint water supply operation rules for multi-reservoir systems play a critical role in mitigating drought-induced water scarcity risks.Within an aggregation-decomposition framework,the rule can be equated to the operation rules of an aggre-gated equivalent reservoir and the allocation approach for shared water supply tasks.The allocation method for shared supply tasks,which significantly influences the spatial-temporal distribution of water resources and the realization of compensatory effects among reservoirs,constitutes a key and complex challenge in joint operation.The dynamic water allocation ratio method ig-nores storage compensation between reservoirs and lead to unnecessary spillage,whereas the compensation regulation method may jeopardize supply for a reservoir's own users due to its over-compensation.To address the limitations of conventional approaches,this paper proposes a hybrid water allocation scheme that integrates both dynamic water allocation ratios and the compensation reg-ulation method.A joint optimal drought-resistantance operation model for the reservoir system is developed using a parameteriza-tion-simulation-optimization modeling framework,achieving dimensionality reduction.Application of the proposed method to the joint water supply system of the Qingshanzui and Jiulongdian reservoirs in Chuxiong Prefecture,Yunnan Province,demonstrates that:under the guidance of the proposed rule,proactive water supply restriction in the early stages of consecutive dry years pre-vents severe water shortages for high-priority users.Compared with the dynamic water allocation ratio method,the proposed hy-brid scheme,by leveraging inter-reservoir compensation,reduces spillage by 8.15 million cubic meters during consecutive dry years and lowers the maximum agricultural water shortage rate by 1.3%during long-term operation.The proposed joint water supply operation rules are scientifically sound and provide technical support for water authorities in guiding reservoir system opera-tion for drought mitigation and disaster reduction.