Offline Guarantee and Online Management of Power Demand and Supply in Cyber-Physical Systems
Offline Guarantee and Online Management of Power Demand and Supply in Cyber-Physical Systems
复制标题
信息物理系统中电力供需的离线保障和在线管理
DOI：
10.1109/rtss.2016.018
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
K. Shin
中科院分区：
文献类型：
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作者：
Eugene Kim;Jinkyu Lee;Liang He;Youngmoon Lee;K. Shin
由于现代电力系统需要支持用户应用和系统维护的各种电力需求操作，因此它们需要高级电力管理，该高级电力管理联合考虑操作的电力需求和来自各种来源的电力供应，例如电池、太阳能电池板和超级电容器。在本文中，我们开发了一个可靠的能量存储系统的电力调度框架，具有多个电源供应源和多个电力需求操作。首先，我们提供离线供电保证，使每个电力需求操作及时完成执行，而单个操作所需的电力之和在任何时候都不超过整个储能系统提供的总电力。我们发现这和一个实时调度问题之间的相似之处，并使用实时调度技术的电源保证。其次，我们提出了在线电源管理，有效地利用剩余的功率（在运行时可用），系统性能的改善。我们的原型实验结果表明，所提出的框架不仅保证了所需的电源，但也提高了系统性能高达33.1%。
Since modern electric systems require to support various power-demand operations for user applications and system maintenance, they need advanced power management that jointly considers power demand by the operations and power supply from various sources, such as batteries, solar panels, and supercapacitors. In this paper, we develop a power scheduling framework for a reliable energy storage system with multiple power-supply sources and multiple power-demand operations. First, we provide an offline power-supply guarantee such that every power-demand operation completes its execution in time while the sum of power required by individual operations does not exceed the total power supplied by the entire energy storage system at any time. We find similarities between this and a real-time scheduling problem, and make a power-supply guarantee using real-time scheduling techniques. Second, we propose online power management that efficiently utilizes the surplus power (available at run-time) for system performance improvement. Our experimental results on a prototype demonstrate that the proposed framework not only guarantees the required power supply, but also enhances system performance by up to 33.1%.