Neural network controller for active demand side management with PV energy in the residential sector

In this paper, we describe the development of a control system for Demand-Side Management in the residential sector with Distributed Generation. The electrical system under study incorporates local PV energy generation, an electricity storage system, connection to the grid and a home automation system. The distributed control system is composed of two modules: a scheduler and a coordinator, both implemented with neural networks. The control system enhances the local energy performance, scheduling the tasks demanded by the user and maximizing the use of local generation

PV self-consumption optimization with storage and Active DSM for the residential sector

With the rising prices of the retail electricity and the decreasing cost of the PV technology, grid parity with commercial electricity will soon become a reality in Europe. This fact, together with less attractive PV feed-in-tariffs in the near future and incentives to promote self-consumption suggest, that new operation modes for the PV Distributed Generation should be explored; differently from the traditional approach which is only based on maximizing the exported electricity to the grid. The smart metering is experiencing a growth in Europe and the United States but the possibilities of its use are still uncertain, in our system we propose their use to manage the storage and to allow the user to know their electrical power and energy balances. The ADSM has many benefits studied previously but also it has important challenges, in this paper we can observe and ADSM implementation example where we propose a solution to these challenges. In this paper we study the effects of the Active Demand-Side Management (ADSM) and storage systems in the amount of consumed local electrical energy. It has been developed on a prototype of a self-sufficient solar house called “MagicBox” equipped with grid connection, PV generation, lead–acid batteries, controllable appliances and smart metering. We carried out simulations for long-time experiments (yearly studies) and real measures for short and mid-time experiments (daily and weekly studies). Results show the relationship between the electricity flows and the storage capacity, which is not linear and becomes an important design criterion

A Semi-Distributed Electric Demand-Side Management System with PV Generation for Self-Consumption Enhancement

This paper presents the operation of an Electrical Demand-Side Management (EDSM) system in a real solar house. The use of EDSM is one of the most important action lines to improve the grid electrical efficiency. The combination between the EDSM and the PV generation performs a new control level in the local electric behavior and allows new energy possibilities. The solar house used as test-bed for the EDSM system owns a PV generator, a lead-acid battery storage system and a grid connection. The electrical appliances are controllable from an embedded computer. The EDSM is implemented by a control system which schedules the tasks commanded by the user. By using the control system, we define the house energy policy and improve the energy behavior with regard to a selected energy criterion, self-consumption. The EDSM system favors self-consumption with regard to a standard user behavior and reduces the energy load from the grid

Evaluación del performance de un sistema de riego FV de alta potencia tras 2 años de operación

CIES2020 - XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia SolarRESUMEN: Los sistemas de riego de alta potencia alimentados a través de la red eléctrica o generadores diésel van dando paso a sistemas fotovoltaicos (FV) de alta potencia que reducen el coste de la energía hasta en un 80%. Se trata de una tecnología nueva de la que se desconocen los datos de performance esperables y su comportamiento frente a la variabilidad de la potencia FV provocada por el paso de nube. Este artículo recupera la definición de unos nuevos índices de performance y presenta sus valores experimentales para un sistema de riego FV de 360 kWp a balsa, aislado de la red y sin baterías, así como los valores del índice de resistencia al paso de nube. El rendimineto del sistema ha sido analizado a lo largo de dos años de operación real del mismo. Por ejemplo, el performance ratio de la parte FV, PRPV, fue de un 79,6% y 80,3% en el primer y segundo año de operación, respectivamente, y el índice de resistencia al paso de nube fue del 95,6%.ABSTRACT: High-power diesel-based or grid-connected irrigation systems are giving way to high-power photovoltaic (PV) systems that reduce the energy costs by up to 80%. This is a new technology for which the expected performance data and its behavior against the variability of PV power caused by passing clouds are unknown. This paper incorporates the existing definition of new performance ratios and presents their experimental values for a stand-alone and battery-free 360 kWp irrigation system, pumping to a water pool, as well as the values for the passing cloud resistance ratio. The system’s performance has been analyzed over two years of real operation. For example, the performance ratio of the PV part, PRPV, was 79,6% and 80,3% in the first and second year of operation, respectively, and the passing cloud resistance ratio was 95,6%.info:eu-repo/semantics/publishedVersio

Experiences and methodology in a multidisciplinary energy and architecture competition: Solar Decathlon Europe 2012

Solar Decathlon Europe is an international competition among universities which promotes interdisciplinary learning in engineering and architecture. Students from different disciplines participate in teams guided by several professors during a 29 month preparation period plus five weeks of on-site contest. The educational project involves designing, building and testing a solar energy house connected to the electrical grid with the strategy of maximizing self-consumption, supported by bioclimatic technologies and maintaining a low environmental footprint. It culminates in a on-site contest in which teams must assembly the house themselves, test it with ordinary real life tasks and finally disassembly it. The event has also a divulgative aim, trying to make students and visitors get interested in discovering the problems presented by real engineering and architecture applications. In addition, SDE covers R&D aspects in different fields such as energy efficiency, solar energy and bioclimatic architecture. This article presents the methodology followed during the SDE 2012 edition, in which more than 850 students participated. The obtained results show that the educational competition was a success according to the technical and professional ambitions of the students, most of them considering that their knowledge had increased in areas related to technical and multidisciplinary aspects. (C) 2014 Elsevier B.V. All rights reserved

Educación afectivo-sexual

Se ha considerado importante en este proyecto, introducir la materia de Educación afectivo-sexual en el proyecto curricular como área transversal para desarrollarla en las aulas, por estar íntimamente relacionada con la salud del individuo y de la comunidad. Entre los objetivos cabe señalar: conocer el propio cuerpo, desarrollar capacidades sensoriales, adquirir hábitos básicos de higiene y conocer el hecho reproductivo. Se fomentarán actividades no sexistas que consistirán en juegos, actividades manuales, y comentario de láminas y fichas. El proyecto ha resultado enriquecedor para los alumnos y ha favorecido, particularmente, el trabajo en equipo y las actividades en el aula..Madrid (Comunidad Autónoma). Consejería de Sanidad y Servicios SocialesMadridNo disponibleES