建设零碳微网供水供电系统是推动海岛可持续发展的有效手段。但随着时间增加，储能老化对其储存电量与运行功率有着不容忽视的影响。为了提高海岛微电网规划结果的可靠性，提出一种考虑储能动态老化特性的独立海岛零碳微网电-水协同规划方法。首先，建立电化学储能与氢储能的精细化物理模型，分析储能老化对其运行效率的影响。其次，引入淡水制备系统，以微网总投资运维成本最小为目标建立独立海岛零碳微网电-水协同规划模型。为了提高模型求解速度，将规划问题拆分为上下两层，上层以固定的可再生能源装机容量为基础优化最小投资成本下的储能系统容量，下层以上层计算出的储能系统装机容量为基础重新规划可再生能源装机容量。然后，采用交替方向乘子法（alternating direction method of multipliers， ADMM）进行迭代求解，直至投资总成本收敛获得最优海岛规划方案。最后，通过对福建省某海岛进行仿真分析，验证所提模型的合理性及方法的有效性。

Constructing a zero-carbon island microgrid with a water and power supply system is an effective means to promote the sustainable development of independent islands. However, energy storage aging significantly impacts its storage power and operating power over time. To improve the reliability of island microgrid planning results, a collaborative electricity-water planning method for zero-carbon microgrids on an independent island considering the dynamic aging characteristics of energy storage is proposed. Firstly, refined physical models of electrochemical energy storage and hydrogen energy storage are established to analyze aging effects on operating efficiency. Secondly, a freshwater preparation system is introduced to establish a zero-carbon microgrid electricity-water cooperative planning model for independent islands in order to minimize the total investment operation and maintenance cost of the microgrid. To enhance the model solution speed, the planning problem is divided into two layers. The upper layer optimizes the installed capacity of the energy storage system with minimum investment cost based on the capacity of renewable energy, and the lower layer replans renewable energy capacity based on the upper layer′s results. Then, the ADMM method is used to solve iteratively until the total investment cost converges to obtain the optimal island planning scheme. Finally, the simulation analysis of a Fujian island verifies the method′s rationality and effectiveness.