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
MAS-based distributed control method for multi-microgrids with high-penetration renewable energy
TL;DR: A fully distributed control method with fault tolerance control for MMG systems is proposed, which is a two-layer model, where a communication network composed of agents is the top layer, while an MMG is the bottom layer.
Journal ArticleDOI
Emerging smart grid technology for mitigating global warming
TL;DR: In this article, the authors proposed a multi-terminal direct current (MTDC) based on voltage source converter (VSC) and solid state transformer (SST) to transmit power from large-scale offshore wind farms.
Journal ArticleDOI
Adaptive Droop Control Method for Suppressing Circulating Currents in DC Microgrids
TL;DR: An adaptive droop control algorithm for suppressing circulating currents in a low voltage DC microgrid and a distributed secondary controller is proposed to improve the load sharing accuracy and eliminate the effect of line resistances.
Proceedings ArticleDOI
Steady state performance analysis for load sharing in DC distributed generation system
TL;DR: In this paper, the deviation in load currents from their ideal values is investigated in DC microgrid, where droop based controllers are used to achieve equal load sharing (in per unit) among sources, and equal sharing of load is achieved in ideal system.
Proceedings ArticleDOI
Renewable energy microgrid control with energy storage integration
TL;DR: In this article, the authors present the design of feedback controllers for the integration of renewable energy into a DC bus microgrid, which are divided into two types: a duty cycle controller and a Hamiltonian Surface Shaping and Power Flow Control (HSSPFC) controller.
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