Uninterruptible power supply (UPS) storage facilities deployed on the demand side have spare capacity that could be used to participate in power system operation. However, their capacity contributions to a power system's load-carrying capability have not been appropriately recognized. This letter exhibits the insight that UPS storage can serve loads during power shortages and therefore has a capacity value. Thus, we propose a novel capacity value evaluation framework applicable for UPS storage. The framework can evaluate the capacity contributions of massive distributed UPS storage facilities while effectively considering their chronological operational characteristics.

中文翻译：

---

不间断电源储能容量值

部署在需求侧的不间断电源（UPS）储能设施具有备用容量，可用于参与电力系统运行。然而，它们对电力系统承载能力的容量贡献尚未得到适当认识。这封信展示了 UPS 存储可以在电力短缺期间为负载提供服务并因此具有容量值的见解。因此，我们提出了一种适用于 UPS 存储的新型容量值评估框架。该框架可以评估大规模分布式 UPS 存储设施的容量贡献，同时有效地考虑其按时间顺序运行的特征。