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Energies 2017, 10(10), 1627;

Experimental Study of a Centralized Control Strategy of a DC Microgrid Working in Grid Connected Mode

Grupo de Sistemas Electrónicos Industriales del Departamento de Ingeniería Electrónica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
Author to whom correspondence should be addressed.
Received: 18 September 2017 / Revised: 11 October 2017 / Accepted: 12 October 2017 / Published: 17 October 2017
(This article belongs to the Special Issue Control and Communication in Distributed Generation Systems)
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The results concerning the integration of a set of power management strategies and serial communications for the efficient coordination of the power converters composing an experimental DC microgrid is presented. The DC microgrid operates in grid connected mode by means of an interlinking converter. The overall control is carried out by means of a centralized microgrid controller implemented on a Texas Instruments TMS320F28335 DSP. The main objectives of the applied control strategies are to ensure the extract/inject power limits established by the grid operator as well as the renewable generation limits if it is required; to devise a realistic charging procedure of the energy storage batteries as a function of the microgrid status; to manage sudden changes of the available power from the photovoltaic energy sources, of the load power demand and of the power references established by the central controller; and to implement a load shedding functionality. The experimental results demonstrate that the proposed power management methodology allows the control of the power dispatch inside the DC microgrid properly. View Full-Text
Keywords: DC microgrid; central controller; power management; power converters DC microgrid; central controller; power management; power converters

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Salas-Puente, R.; Marzal, S.; González-Medina, R.; Figueres, E.; Garcera, G. Experimental Study of a Centralized Control Strategy of a DC Microgrid Working in Grid Connected Mode. Energies 2017, 10, 1627.

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