Title: Hierarchical Control of Droop-Controlled AC and DC Microgrids—A General Approach Toward Standardization
Abstract: AC and dc microgrids (MGs) are key elements for integrating renewable and distributed energy resources as well as distributed energy-storage systems. In the last several years, efforts toward the standardization of these MGs have been made. In this sense, this paper presents the hierarchical control derived from ISA-95 and electrical dispatching standards to endow smartness and flexibility to MGs. The hierarchical control proposed consists of three levels: 1) The primary control is based on the droop method, including an output-impedance virtual loop; 2) the secondary control allows the restoration of the deviations produced by the primary control; and 3) the tertiary control manages the power flow between the MG and the external electrical distribution system. Results from a hierarchical-controlled MG are provided to show the feasibility of the proposed approach.
Publication Year: 2010
Publication Date: 2010-08-18
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 4290
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