An Edge-Based Formulation for Combined-Cycle Units
An Edge-Based Formulation for Combined-Cycle Units
复制标题
联合循环机组基于边缘的公式
DOI：
10.1109/tpwrs.2015.2443036
复制
发表时间：
2016
影响因子：
6.6
通讯作者：
Yongpei Guan
中科院分区：
文献类型：
--
作者：
Lei Fan;Yongpei Guan
随着联合循环机组数量的增加，这些机组的有效建模方法对独立系统运营商（ISO）起着重要的作用。基于燃气轮机（CT）和蒸汽轮机（ST）的各种组合，联合循环机组可以以不同的配置（模式）和不同的效率工作。在本文中，我们提出了一个基于边的制定联合循环机组的机组组合问题，以提高当前建模方法的准确性和有效性。我们的公式可以1）清楚地描述不同配置之间的过渡过程，以满足ISO财务报价提交要求和（2）捕获每个涡轮机的物理约束，包括确切的最小启动/停机时间和时间依赖的启动成本，在联合循环机组中，以增加操作灵活性，同时确保系统的可行性。这种模式非常适合目前美国放松管制的电力市场。最后的数值研究表明，我们的方法比目前的配置为基础的建模方法表现更好。
As the number of combined-cycle units increases, efficient modeling approaches for these units play important roles for independent system operators (ISOs). Based on various combinations of combustion turbines (CTs) and steam turbines (STs), the combined-cycle unit could work at different configurations (modes) with different efficiencies. In this paper, we propose an edge-based formulation for the combined-cycle units in the unit commitment problem to improve the accuracy and effectiveness of current modeling approaches. Our formulation can 1) clearly describe the transition processes among different configurations so as to satisfy the ISO financial offer submission requirements and (2) capture physical constraints of each turbine, including the exact min-up/down time and time dependent startup cost, in the combined-cycle units so as to increase the operational flexibility while ensuring system feasibility. This model fits well with the current U.S. deregulated electricity market. The final numerical studies show that our approaches perform better than the current configuration-based modeling approach.