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10
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282
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Citations since 2017
Introduction
Skills and Expertise
Publications
Publications (10)
This paper describes a hitherto unstudied malfunction that can occur in the protection system of distribution networks (DNs) in the presence of large photovoltaic plants (LPVPs). The focus here is on the phase-balance current (PBC) protection of overhead or blended feeders back-fed by LPVPs. This study used the DNs belonging to ENDESA Distribución...
The present model for olive cultivation is based on the farmer picking the fruit, transport them to the mill to produce extra-virgin olive oil, burn or chip the pruning debris and send the olive pomace from the mill to the extractor to obtain olive pomace oil. A sustainable technological option is the model shown in this paper. It is based on gasif...
Distribution network and transmission system operators (DNOs and TSOs) who are obliged to connect photovoltaic-distributed generation (PV-DG) to their respective distribution networks or power systems need a coherent set of electrical protection requirements for safe operation. Nonetheless, the growing importance of PV-DG has prompted continuous re...
In view of all the concerns associated with fossil fuels and energy demand it is appropriate to investigate the large number of abandoned small hydropower plants.In order to solve the difficulty implied, by a viability study on the refurbishment of a small hydropower plant, a series of simple equations has been developed based on the economic optim...
One of the most important elements on the recovery of a small hydro-power plant is the electro-mechanical equipment (turbine–alternator), since the cost of the equipment means a high percentage of the total budget of the plant. The present paper intends to develop a series of equations which determine its cost from basic parameters such as power an...
This paper presents the application of signal processing tools for
power quality analysis. Three signal processing techniques are
considered: the discrete Fourier transforms, the wavelet filters and the
discrete short-time Fourier transforms. It is designed an adjustable
speed drive with a six-pulse converter using EMTP/ATP and it is
presented norm...
Control system packages have become essential ingredients of both
undergraduate and graduate courses in the control area. This work
describes our experience with the use of MATLAB<sup>TM</sup> with its
fuzzy logic and neural networks toolboxes in electrical engineering
control courses. While some of the methods in the area of intelligent
systems an...
This paper is intended to prove an economic profitability of the by-products obtained from the olive-grove in Jaen (Spain). There is a two-fold aim, on the one hand, the calculation of the biomass total potential originated from the olive-grove in Jaen, analysing the available potential and the viable economically potential, eliminating the zones o...
L RESUMEN Con el presente artículo se pretende analizar las características y singularidades que han concurrido en la comarca de Sierra Mágina para el nacimiento y posterior implantación de la energía eléctrica. Para ello se analizará la existencia de centrales generadoras, líneas de transporte y centros de consumo, de energía eléctrica, en el prim...
Projects
Project (1)
The European Commission policy highlights that one of the main objectives regarding to electrical energy is to reframe the electricity market in order to be more interconnected, get a greater responsiveness and allow a high penetration of decentralized renewable sources. Photovoltaic (PV) solar energy and electric vehicle (EV) can play an important role in this context. PV systems (PVSs) have proven to be mature, reliable and competitive technology in certain scenarios, laying down strong basics to increase their penetration in coming electric mix. In addition, the deployment of the EV, as a latest technology, presents a learning curve that will enable its competitiveness at short-medium term.
Residential sector PV self-consumption represents an optimal option from a technical and economic point of view, minimizing the PV impact on the network and reducing the electrical demand in a context of increasing prices. The deployment of the private EV requires the massive integration of charging stations into the grid. As the percentage of energy supplied to such stations increases by renewable energy, the objective of reducing CO2 emissions in this sector will be better achieved. Focusing on residential sector, both PV self-consumption and EV charging loads, by bidirectional charging station, represent the paradigm of distributed generation and consumption. In this context, smart management is welcome to optimize the use of PV energy in those dwellings that include EVs bidirectional charging load thanks to advanced storage systems. These storage systems allow a greater integration of PV and EV in the networks. Besides, the incorporation of such storage systems (hybrids) allows that the resulting microgrid (housing, EV, hybrid storage and PVS [hereafter PV+EV microgrid]) provides advanced network services (ancillary services). This advanced approach pursues a dual objective; on the one hand, to increase the economic competitiveness of proconsumer’s facilities with PVS and EV, on the other hand, to maintain the stability of the electrical power system under a massive PV and EV integration in residential sector, without compromising its stability.
This project aims to develop a smart management of this PV+EV microgrid that will handle the challenge of supporting multiple tasks. These tasks will involve an optimal energy management, on the basis of economic criteria and an optimal management of auxiliary service provision (primary and secondary frequency control and dynamic grid support). For this purpose, it will be necessary to research and develop new algorithms for estimating input variables, advanced models of microgrid components, new algorithms for energy and service provision management, new algorithms of control to guarantee power system stability. These algorithms of control will be necessarily conditioned by the knowledge of the impact of microgrids on the electrical system; impact assessment will require advanced simulation tools.
The smart management proposal of PV+EV microgrid concludes with the actual operation and evaluation of the built prototype in the project. This prototype will allow transfer the knowledge generated to society in general and particularly, to the industrial and business sector.
