Optimal Outage Scheduling Strategy for Integrated Energy Systems Incorporating Multi-Time-Scale Demand Response and Carbon Trading Mechanism

Under the background of China's “dual carbon” goals, traditional energy supply modes dominated by single energy sources are facing multiple challenges, including low resource utilization efficiency, high carbon emission pressure, and insufficient consumption of renewable energy. Integrated Energy Systems (IES), owing to their advantages in energy synergy, structural optimization, and carbon emission reduction, have become a vital direction for energy system transformation. To address system robustness challenges in planned power outage scenarios, this study proposes a novel multi-timescale demand response optimization strategy. A dual-scale framework integrating hourly real-time optimization with day-ahead scheduling is established to enhance system resilience against uncertain outage risks. For carbon trading mechanism design, a multi-dimensional objective function system encompassing economy, low-carbon performance, and reliability is developed, with particular emphasis on coordinated regulation strategies for energy storage devices and flexible loads. Simulation results demonstrate that through proactive charging preparation of energy storage systems during pre-dispatch phases, the model maintains continuous power supply for 89.7 % of critical loads during outage events while effectively mitigating load shock impacts on system operations.