Distributed Global Economical Load Sharing for a Cluster of DC Microgrids
Distributed Global Economical Load Sharing for a Cluster of DC Microgrids
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直流微电网集群的分布式全球经济负载共享
DOI：
10.1109/tpwrs.2020.2975378
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发表时间：
2020-02
影响因子：
6.6
通讯作者：
Dianguo Xu
中科院分区：
文献类型：
--
作者：
Mohamed Zaery;Panbao Wang;Wei Wang;Dianguo Xu
本文提出了一种完全分布式的分层协调控制器，该控制器通过处理微电网之间的最优功率分配，使直流微电网集群的全球总发电成本（TGC）最小化。它由局部和全局（部分组成，此处“glo”可能是“global”未完整表述）
This paper addresses a fully distributed hierarchical coordination controller, which minimizes the global total generation cost (TGC) for a cluster of DC microgrids (MGs) through handling the optimal power-sharing between MGs. It consists of local and global tertiary controllers, in which a two-layer communication network is modeled to share information with a reduced complexity as one or some distributed generators (DGs) of each MG are pinned from the local network to broadcast the information between MGs at the global network. Under this control structure, the global tertiary controllers, based on dynamic consensus technique, generate the global optimum incremental cost (IC) reference to attain the entire cluster's economic operation. Moreover, using pinning-based leader-follower consensus algorithm, the local tertiary controllers assign MG average voltage reference at which the ICs of all DGs are matched at the global reference to ensure optimal operation of the cluster with considering DGs generation boundaries. Finally, the nominal voltage set points of each DG can be determined by the secondary controller to guarantee the generation-demand power balance. The feasibility of the proposed controller is demonstrated by simulation and experiment under various test scenarios.
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