论文标题
两阶段强大的单位承诺问题,温度复杂和需求不确定性
Two-Stage Robust Unit Commitment Problem with Complex Temperature and Demand Uncertainties
论文作者
论文摘要
在本文中,我们介绍并研究了一个强大的单位承诺模型以及一些考虑复杂温度和需求不确定性的变体。由于在实用系统中气体发生器,需求和温度的效率之间存在牢固的关系,因此我们的强大模型具有左侧和右侧(分别为LHS和RHS)的不确定性。与许多现有的强大模型仅具有RHS不确定性不同,LHS不确定性的引入在计算健壮解决方案方面构成了巨大的挑战。对于那些复杂的配方,我们分析它们的结构,得出重要的特性,并在列和约束生成框架下设计精确且快速的近似解决方案策略。数值实验是在典型的IEEE测试系统上进行的,该系统展示了我们的解决方案方法的出色性能,并证明了系统操作中复杂和相关的不确定性的明显影响。
In this paper, we present and study a robust unit commitment model and some variants that consider complex temperature and demand uncertainties. Since there is a strong relationship among the efficiency of gas generators, demand, and temperature in practical systems, our robust models have both left- and right-hand-side (LHS and RHS, respectively) uncertainties. Unlike many existing robust models with RHS uncertainty only, the introduction of LHS uncertainty imposes a huge challenge in computing robust solutions. For those complex formulations, we analyze their structures, derive important properties, and design exact and fast approximation solution strategies under the column-and-constraint generation framework. Numerical experiments are conducted on typical IEEE test systems, which showcase the great performance of our solution methods and demonstrate a clear impact of complex and correlated uncertainties in system operations.