Suitable operational strategy for power interchange operation using multiple residential SOFC (solid oxide fuel cell) cogeneration systems
Suitable operational strategy for power interchange operation using multiple residential SOFC (solid oxide fuel cell) cogeneration systems
复制标题
使用多个住宅 SOFC（固体氧化物燃料电池）热电联产系统进行电力交换操作的合适操作策略
DOI：
10.1016/j.energy.2009.09.029
复制
发表时间：
2010
期刊：
影响因子：
9
通讯作者：
K. Shimizu
中科院分区：
文献类型：
--
作者：
T. Wakui;R. Yokoyama;K. Shimizu
采用混合整数线性规划的优化方法，研究了多户固体氧化物燃料电池（SOFC）热电联产系统功率互换运行的节能策略。在这种电力交换操作中，住宅SOFC热电联产系统产生的电力在住宅区的家庭之间共享，而不允许向商业电力系统的反向电力流动，以增加系统的电负载系数。对于以最小输出连续运行的SOFC热电联产系统，采用两种类型的功率互换操作的操作策略：通过SOFC热电联产系统的电力输出来满足目标家庭的总电力需求的操作和通过SOFC热电联产系统的热水输出来满足每个家庭的热水需求的操作。为了阐明这两种策略的节能效果的理论极限，本研究对20户家庭在三个有代表性的日子的最佳运行模式进行了数值分析。结果表明，前者的运行策略，它利用了高发电效率的SOFC，是更适合于节能相比，后者的策略。
A suitable operational strategy for a power interchange operation using multiple residential solid oxide fuel cell (SOFC) cogeneration systems for saving energy is investigated by an optimization approach based on mixed-integer linear programming. In this power interchange operation, electricity generated by residential SOFC cogeneration systems is shared among households in a housing complex without allowing a reverse power flow to a commercial electric power system in order to increase electric load factors of the system. For an SOFC cogeneration system operated continuously with the minimum output, two types of operational strategies for the power interchange operation are adopted: an operation to meet the total demand for electricity in intended households by the electricity output of SOFC cogeneration systems and an operation to meet the demand for hot water in each household by the hot water output of the SOFC cogeneration system. To clarify a theoretical limit of the energy-saving effects of the two strategies, this study numerically analyzes optimal operation patterns for 20 households on three representative days. The results show that the former operational strategy, which takes advantage of the high electricity generating efficiency of the SOFC, is more suitable for saving energy as compared to the latter strategy.