An iterative scheme to hierarchically structured optimal energy management of a microgrid
An iterative scheme to hierarchically structured optimal energy management of a microgrid
复制标题
微电网分层结构优化能量管理的迭代方案
DOI：
10.1109/cdc.2015.7403037
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. Prandini
中科院分区：
文献类型：
--
作者：
D. Ioli;A. Falsone;M. Prandini
本文研究了由多个子单元组成的微电网的最优能量管理问题，每个子单元包括一个或多个共享公共资源的建筑物。微电网运营商的目标是匹配与主电网运营商商定的给定电能分布。我们提出了一种基于分层结构的分散解决方案，该结构涉及三层：单个建筑、子单元和微电网运营商。在每个建筑的层面上，热能和电能的需求被最小化，同时保证了建筑居住者一定的舒适度和服务质量。每个子单元根据组成该子单元的建筑物的能源需求和微电网运营商收到的成本信号，对公共资源（存储和技术设备）的使用进行优化。每个子单元根据自己的成本信号计算出的电能成本最小，而微网运营商根据分散优化的结果更新所有的成本信号，以协调子单元并匹配给定的参考剖面。数值算例表明了该方法的有效性。
In this paper we address the optimal energy management of a microgrid composed of multiple sub-units, each one including one or more buildings sharing some common resources. The goal of the microgrid operator is to match a given electrical energy profile agreed with the operator of the main grid. We propose a decentralized solution scheme based on a hierarchical structure involving three layers: single building, sub-unit, and microgrid operator. At the level of each building, thermal and electrical energy requests are minimized while guaranteeing a certain comfort and quality of service to the building occupants. Optimization of the use of common resources (storages and technological devices) is performed by each sub-unit based on the energy requests of the buildings composing the sub-unit and the cost signal received by the microgrid operator. Each sub-unit minimizes its electrical energy cost as computed based on its own cost signal, while the microgrid operator updates all cost signals based on the outcome of the decentralized optimization, so as to coordinate the sub-units and match the given reference profile. A numerical example shows the efficacy of the approach.