离散微分动态规划在水库优化调度中的应用研究

Application Study of Discrete Differential Dynamic Programming on the Reservoir Optimal Operation

采用改进的动态规划即离散微分动态规划(DDDP)法,建立了单一水库多目标库优化调度模型,并以陆浑水库为例进行实例应用,求解得出陆浑水库优化调度结果。针对典型年优化调度,选取不同汛限水位作为调度方案,得出提高水库汛限水位十分必要的结论;对于长系列优化调度,优化后多年平均发电量比实际增加了54.9%,为制定合理的水库调度方案提供参考依据。实例计算表明,该方法简单、快捷,避免了常规动态规划中存在的因离散值过多而陷入的"维数灾"问题。

Adopting discrete differential dynamic programming （DDDP） , this multi-objective optimization model is determined. The Luhun reservoir is used as a study case, and we get the beneficial purpose of optimal operation. According to the optimal result of typical years, it shows that rising up the flood control level is necessary. The results show that the average generated energy is 54.9% more than the reality. The case study indicates that, in contrast with the traditional dynamic programming, the DDDP shows advantages such as simple and quick, and avoiding the curse of dimensionality of tradition dynamic programming.