Redundant Transmission Constraints Identification and Elimination for Transmission-constrained Unit Commitment Problem

With the integration of renewable energy, the power system faces new challenges such as increasing uncertainty and changing system operation mode. It is necessary to improve the computational efficiency of the unit commitment in the power system for real application. A transmission-constrained unit commitment model is proposed in this paper and the identification and elimination approach of the non-risky redundant transmission constraints is used to reduce the model scale of the transmission-constrained unit commitment problem. To validate the effectiveness and practicability of the identification and eliminating approach, a modified IEEE-118 case has been conducted.