Resilience-Constrained Unit Commitment Considering Demand Response

Increasing number of outages due to natural disasters shows the vulnerability of power systems to extreme events and brings an awareness of operating the system proactively. In this paper a new resilience-constrained unit commitment (RCUC) model is proposed by incorporating emergency demand response program (EDRP), named as RCUCDR. A sequential and Monte Carlo Simulations-based framework is used in the proposed RCUC-DR model. High loading rates of transmission lines are one of the main reasons of cascading outages. In order to have homogenous distribution of power flow, loading reduction in the areas affected by extreme events and demand response programs (DRPs) are considered simultaneously in the proposed RCUC-DR framework. The proposed RCUCDR model is formulated as a mix-integer programming (MIP) optimization model. Single-period and multi-period responsive loads are considered in the utilized DRPs. Capability of the proposed model is tested on the IEEE-24 bus system and compared with RCUC and security-constrained unit commitment (SCUC). The results demonstrate the effectiveness of utilizing DRPs in the case of extreme events.