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Energies 2016, 9(3), 219; doi:10.3390/en9030219

An Embedded System in Smart Inverters for Power Quality and Safety Functionality

1
Department of Computer Architecture, Electronics and Electronics Technology, University of Cordoba, Rabanales Campus, Cordoba 14071, Spain
2
Department of Automation Engineering, Electronics, Architecture and Computers Networks, Polytechnic’s Engineering faculty, University of Cadiz, Algeciras 11202, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Josep M. Guerrero
Received: 26 January 2016 / Revised: 2 March 2016 / Accepted: 14 March 2016 / Published: 18 March 2016
(This article belongs to the Special Issue Microgrids)

Abstract

The electricity sector is undergoing an evolution that demands the development of a network model with a high level of intelligence, known as a Smart Grid. One of the factors accelerating these changes is the development and implementation of renewable energy. In particular, increased photovoltaic generation can affect the network’s stability. One line of action is to provide inverters with a management capacity that enables them to act upon the grid in order to compensate for these problems. This paper describes the design and development of a prototype embedded system able to integrate with a photovoltaic inverter and provide it with multifunctional ability in order to analyze power quality and operate with protection. The most important subsystems of this prototype are described, indicating their operating fundamentals. This prototype has been tested with class A protocols according to IEC 61000-4-30 and IEC 62586-2. Tests have also been carried out to validate the response time in generating orders and alarm signals for protections. The highlights of these experimental results are discussed. Some descriptive aspects of the integration of the prototype in an experimental smart inverter are also commented upon. View Full-Text
Keywords: embedded system; smart grid; smart inverter; distributed energy resource; power quality embedded system; smart grid; smart inverter; distributed energy resource; power quality
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Real-Calvo, R.; Moreno-Munoz, A.; Gonzalez-De-La-Rosa, J.J.; Pallares-Lopez, V.; Gonzalez-Redondo, M.J.; Moreno-Garcia, I.M. An Embedded System in Smart Inverters for Power Quality and Safety Functionality. Energies 2016, 9, 219.

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