Abstract In this work, dynamic modelling of a system based on a reversible solid oxide cell (rSOC) is developed so that it can be integrated with the grid for power balancing. The focus of this work is on the dynamic operation of a system, which is investigated using representative profiles of wind electricity production. In addition, the effect and challenges of dynamic operation on the system and stack itself are studied. Detailed operation strategies are defined during the switching process from one operational mode to another and are implemented on the dynamic process model. Simulation results show that when the rSOC system is operated in solid oxide electrolysis (SOE) and solid oxide fuel cell (SOFC) modes alternatively, energy balancing can be implemented on a continuous basis. In this process, the results show that the rSOC system operates in a safe operating range and does not deviate from the pre-defined limits. This is due to the accurate strategies developed for the switching process. It is also observed from the simulation results that the switching time is significantly influenced by the initial power of the first and the final power of the later operational mode. The proposed model of rSOC was validated using experimental data, and good agreement with experimental data was demonstrated.

中文翻译：

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用于网格稳定应用的可逆固体氧化物电池的动态建模

摘要 在这项工作中，开发了基于可逆固体氧化物电池 (rSOC) 的系统的动态建模，以便它可以与电网集成以进行功率平衡。这项工作的重点是系统的动态运行，该系统使用风电生产的代表性剖面进行调查。此外，还研究了动态操作对系统和堆栈本身的影响和挑战。在从一种操作模式到另一种操作模式的切换过程中定义了详细的操作策略，并在动态过程模型上实施。仿真结果表明，当rSOC系统以固体氧化物电解（SOE）和固体氧化物燃料电池（SOFC）模式交替运行时，可以连续实现能量平衡。在这个过程中，结果表明，rSOC 系统运行在安全运行范围内，没有偏离预先定义的限制。这是由于为切换过程制定了准确的策略。从仿真结果中还观察到，切换时间受第一个操作模式的初始功率和后一个操作模式的最终功率的显着影响。使用实验数据验证了所提出的 rSOC 模型，并证明了与实验数据的良好一致性。