Journal ArticleDOI
Hierarchical control of droop-controlled DC and AC microgrids — a general approach towards standardization
Josep M. Guerrero,Juan C. Vasquez,Jose Matas,L.G. de Vicuna,Miguel Castilla +4 more
- Vol. 58, Iss: 1, pp 158-172
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TLDR
The hierarchical control derived from ISA-95 and electrical dispatching standards to endow smartness and flexibility to MGs is presented and results are provided to show the feasibility of the proposed approach.Abstract:
DC and AC Microgrids are key elements to integrate renewable and distributed energy resources as well as distributed energy storage systems. In the last years, efforts toward the standardization of these Microgrids have been made. In this sense, this paper present the hierarchical control derived from ISA-95 and electrical dispatching standards to endow smartness and flexibility to microgrids. The hierarchical control proposed consist of three levels: i) the primary control is based on the droop method, including an output impedance virtual loop; ii) the secondary control allows restoring the deviations produced by the primary control; and iii) the tertiary control manage the power flow between the microgrid and the external electrical distribution system. Results from a hierarchical-controlled microgrid are provided to show the feasibility of the proposed approach.read more
Citations
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Journal ArticleDOI
A Power Distributed Control Method for Proportional Load Power Sharing and Bus Voltage Restoration in a DC Microgrid
Duy-Hung Dam,Hong-Hee Lee +1 more
TL;DR: This paper proposes a new power distributed control method for a dc microgrid to share the load power proportionally to the distributed power source ratings and restore the dc bus voltage when the load changes.
Journal ArticleDOI
Distributed Primary and Secondary Power Sharing in a Droop-Controlled LVDC Microgrid With Merged AC and DC Characteristics
TL;DR: This paper proposes an alternative droop scheme for low-voltage dc microgrid with both primary power sharing and secondary voltage regulation merged, and introduces a non-zero unifying frequency and a second power term to each dc source by modulating its converter with both a dc and a small ac signal.
Journal ArticleDOI
Corrective receding horizon scheduling of flexible distributed multi-energy microgrids
TL;DR: In this paper, the authors provide a comprehensive operational flexibility evaluation of different multi-energy microgrid (MEM) options by incorporating Mixed Integer Liner Programming (MILP) model for annual simulations and expanding it with Receding Horizon Model Predictive Control (RH-MPC) algorithm for short term daily operational analyses.
Journal ArticleDOI
Optimal Voltage Control Using Inverters Interfaced With PV Systems Considering Forecast Error in a Distribution System
Zakaria Ziadi,Masato Oshiro,Tomonobu Senjyu,Atsushi Yona,Naomitsu Urasaki,Toshihisa Funabashi,Chul-Hwan Kim +6 more
TL;DR: In this article, a methodology for voltage control using the PV interfaced inverters and tap changing transformers is proposed, which is determined by an optimization technique based on the forecast values of load demand and PV power generation.
Journal ArticleDOI
Unifying Distributed Dynamic Optimization and Control of Islanded DC Microgrids
Seyedali Moayedi,Ali Davoudi +1 more
TL;DR: A distributed control method is proposed to simultaneously optimize the power sharing among sources of islanded dc microgrids, while regulating the distribution bus voltage using a voltage regulator and optimizer to establish the generation-consumption equality constraint and matches the incremental costs.
References
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