Power-based transmission constrained unit commitment formulation with energy-based reserve

摘要: Staircase transmission constrained unit commitment (TCUC) formulations have been used for decades and are considered as energy-based TCUC (EbUC). Recently, it has reported that EbUC may result in undeliverable energy schedules. Some power-based (PbUC) proposed to address this problem. However, exact continuous time-based power outputs of units usually approximated these PbUC ramp-rate capacities not accurately modelled. Besides, the implicit coupling between constraints spinning reserves is neglected both formulations, which cause scheduled reserve levels unavailable some time periods. To problems, a new formulation study with outputs. It found can be transformed into an equivalent mathematical program Lagrangian relaxation-based approach presented. Numerical testing performed 10-unit system IEEE 24-bus system. Results show model solution algorithm effective.