考虑燃气–蒸汽联合循环机组的机组组合建模综述

In the context of “carbon neutrality”, combined-cycle gas turbines (CCGTs) provide flexible resources for the integration of large-scale renewable energy resources due to their excellent characteristics such as fast start-up speed and deep peak-regulating capabilities. Thus，it has won widespread attention in recent years. First, for the six existing modeling methods of CCGT, the modeling accuracy, calculation efficiency, and solution feasibility are discussed. Secondly, it summarizes four of the models that consider the actual physical characteristics of the internal turbine of the CCGT and compares their characteristics and scope of application. Finally, the effects of introducing steam coupling characteristics into the model and the refinement of the start-stop process, variable types, and tightening constraints on the solution of the model are considered; and the computational efficiency of different modeling methods is compared. The review in this paper can provide important insight for promoting the research and application of CCGT modeling for large-scale unit commitments.