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分析了蓄供水判别式法运用于梯级水库调度所存在的不足,为提高梯级水库水资源利用效率,以梯级调度期总发电量最大为目标,构建了梯级总出力调度图优化模型和时段内最优出力分配模型,给出了基于逐步收索方式和逐步优化算法的模型求解流程。以李仙江流域梯级为实例进行计算,在得出总出力调度图的同时,利用最优模拟结果和逐步回归方法建立了梯级各库时段出力比值与各相关因子的函数关系,其调度结果与常规方案相比,年发电量和发电保证率均有较大程度的提升,验证了所建模型的合理性。
In order to improve the utilization efficiency of water resources in cascade reservoirs, aiming at maximizing the total generating capacity of cascaded reservoirs, an optimization model of cascade total output distribution plans Outstanding force distribution model, the model solving process based on step-by-step retrieval method and stepwise optimization algorithm is given. Taking the Li Xianjiang River cascade as an example, the power output ratio and the related factors are established by using the best simulation results and the stepwise regression method. The scheduling results are compared with the conventional schemes Compared to the annual power generation and power generation to ensure a greater rate of increase, verify the rationality of the model.