Optimal Battery Charging Method for Scheduled Power Outage by Calculus of Variations
Optimal Battery Charging Method for Scheduled Power Outage by Calculus of Variations
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DOI：
10.12720/ijoee.3.1.28-31
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
T. Kumano;Hayato Ikushiba
中科院分区：
文献类型：
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作者：
T. Kumano;Hayato Ikushiba
在未来的电力系统中，越来越多的可再生能源将被安装，EMS（能量管理系统），控制电池储能系统（电池储能系统）起着重要的作用，其运行应适当调度。需要特别仔细地确定电池何时以及如何充电/放电。本文提出了一种新的优化方法，这个问题在极端情况下，当学习建筑物需要准备预先宣布的计划停电。所提出的计算方案是基于所谓的变分法。它为我们提供了最佳路径设置，何时以及如何向电池充电，以便在宣布的开始时间正确充电，同时避免过度充电。目标函数是线路损耗，这使我们能够尽可能地节省能量。数值算例验证了所提计算方法的有效性。
In future power systems, where more and more renewable energy sources will be installed, EMS (Energy Management System) which controls BESS (Battery Energy Storage System) plays an important role and its operation should be appropriately scheduled. It needs to be particularly carefully determined when and how the battery should be charged/discharged. This paper proposes a new optimization method for this issue in the extreme case when the study building needs to prepare for the pre-announced scheduled power outage. The proposed calculation scheme is based on so called calculus of variations. It gives us the optimal path setting when and how electric power should be charged to the battery so as to make it properly charged at the announced start time yet avoid overcharged. The objective function is the line loss, which enables us to save the energy as much as possible. The validity of the proposed calculation scheme is confirmed by numerical examples.