针对传统海岛存在能源资源的可持续供给问题，提出一种独立海岛零碳微网多时间尺度优化运行方法，以满足独立海岛微网在稳定性、灵活性和经济性方面的需求。首先，根据海岛用能实际情况构建独立海岛零碳微网风光储氢水系统模型。其次，考虑到氢储能具有长周期储能的能力，建立周前-日前-日内多时间尺度优化模型，提出计及风光不确定性的多时间尺度运行调度策略。周前阶段基于历史数据预测风光资源趋势，制定氢储能启停计划；日前阶段利用基于多场景技术的随机优化方法处理风光不确定性，并制定海水淡化机组启停计划；日内阶段结合实时风光数据动态调整电氢混合储能与海水淡化系统运行状态。最后，仿真结果表明，所提方法可以更好地发挥氢储能长时间储存能量的特性，促进系统风光消纳，在风光资源不足时，能有效减少负荷损失量，提高独立海岛零碳微网系统的可靠性。

Aiming at the problem of sustainable supply of energy resources in traditional islands, a multi-time scale optimal operation method of independent island zero-carbon microgrid is proposed to meet the requirements of stability, flexibility and economy of independent island microgrid. Firstly, according to the actual situation of island energy consumption, the wind-solar-storage-hydrogen-water system model of independent island zero-carbon microgrid is constructed. Secondly, considering that hydrogen energy storage has the ability of long-term energy storage, a multi-time scale optimization model spanning week-ahead, day-ahead, and intra-day is established, and a multi-time scale operation scheduling strategy considering wind and solar uncertainty is proposed. In the week-ahead stage, the trend of wind and solar resources is predicted based on historical data, and the start-stop plan of hydrogen energy storage is formulated. In the day-ahead stage, the stochastic optimization method based on multi-scenario technology is used to deal with the uncertainty of wind and solar energy and formulate the start-stop plan of seawater desalination unit. In the intra-day stage, the operation status of the hybrid energy storage and seawater desalination system is dynamically adjusted in combination with real-time wind and solar data. Finally, the simulation results show that the proposed method can better utilize the characteristics of hydrogen energy storage for a long time to store energy and promote the system’s wind and solar consumption. When the wind and solar resources are insufficient, it can effectively reduce the load loss and improve the reliability of the independent island zero-carbon microgrid system.