Browsing by Subject "Energia--Emmagatzematge"
Now showing items 1-20 of 43
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A hybrid energy storage solution based on supercapacitors and batteries for the grid integration of utility scale photovoltaic plants
(Elsevier, 2022-07-01)
Article
Open AccessThis paper presents a 2-level controller managing a hybrid energy storage solution (HESS) for the grid integration of photovoltaic (PV) plants in distribution grids. The HESS is based on the interconnection of a lead-acid ... -
A mathematical model for the energy stored in green roofs
(2023-03-13)
Article
Open AccessA simple mathematical model to estimate the energy stored in a green roof is developed. Analytical solutions are derived corresponding to extensive (shallow) and intensive (deep) substrates. Results are presented for the ... -
A systemic approach to investigate the gaps between distribution system operators need and technology developers’ perception—A case study of an intelligent low-voltage grid management system with storage
(Multidisciplinary Digital Publishing Institute, 2021-06-09)
Article
Open AccessThe purpose of the paper is to introduce a new bi-directional approach to assess the gapbetween the customer needs and technology developers’ perception on the value propositions ofinnovations which includes storages. The ... -
Advanced study for the numerical resolution of the Navier-Stokes equations. Application to thermal energy storage systems
(Universitat Politècnica de Catalunya, 2022-07-19)
Master thesis
Open AccessThe resolution of the Navier Stokes equations in three dimensions in a turbulent regime applying turbulence models is studied. To accomplish this objective, it is done a brief introduction to the work done on the Final ... -
Brookite TiO2 nanorods as promising electrochromic and energy storage materials for smart windows
(2023-01-01)
Article
Open AccessElectrochromic smart windows (ESWs) offer an attractive option for regulating indoor lighting conditions. Electrochromic materials based on ion insertion/desertion mechanisms also present the possibility for energy storage, ... -
Building of a methodology to assess the opportunities of battery energy storage systems in different countries for business development purposes
(Universitat Politècnica de Catalunya, 2023-03-20)
Master thesis
Restricted access - confidentiality agreement -
Capacitor voltage balancing in a three-level-converter-based energy storage system
(2013-10-01)
Article
Restricted access - publisher's policyThis paper discusses a grid-connected energy storage system based on two three-level (3L) converters: a DC-DC one and a neutral-point-clamped inverter. When compared to a system using standard two-level converters, the ... -
Coherent vorticity extraction in resistive drift-wave turbulence: Comparison of orthogonal wavelets versus proper orthogonal decomposition
(2011-03)
Article
Open AccessWe assess two techniques for extracting coherent vortices out of turbulent flows: the wavelet based Coherent Vorticity Extraction (CVE) and the Proper Orthogonal Decomposition (POD). The former decomposes the flow field ... -
Comparative life cycle assessment of different lithium-ion battery chemistries and lead-acid batteries for grid storage application
(Universitat Politècnica de Catalunya, 2021-11-08)
Master thesis
Restricted access - confidentiality agreement
Covenantee: KTH School of Industrial Engineering and Management -
Comparison of charging control techniques for electrochemical energy storage systems
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Conference report
Open AccessThis conference paper presents a comparison study between different charging techniques for energy storage systems. The work presents the application of charging methods in two different types of models, which are a dynamic ... -
Competitiveness in power systemfrequency regulation markets
(Universitat Politècnica de Catalunya, 2021-11-08)
Master thesis
Open Access
Covenantee: KTH School of Industrial Engineering and ManagementThe growing share of weather-dependent power generation in the Swedish power system is challenging the stability of the whole system. Therefore, the need to increase system flexibility by frequency regulation reserves is ... -
Control of a flywheel energy storage system for power smoothing in wind power plants
(2014-03-01)
Article
Open AccessThis paper deals with the design and the experimental validation in scale-lab test benches of an energy management algorithm based on feedback control techniques for a flywheel energy storage device. The aim of the flywheel ... -
Control strategies for combining local energy storage with wells turbine oscillating water column devices
(2015-11-01)
Article
Open Access -
Corrosion evaluation of austenitic and duplex stainless steels in molten carbonate salts at 600 °C for thermal energy storage
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-19)
Article
Open AccessNext-generation concentrated solar power (CSP) plants are required to operate at temperatures as high as possible to reach a better energy efficiency. This means significant challenges for the construction materials in ... -
Design and calculations of a thermal solar installation in a studenthall
(2007-07)
Master thesis (pre-Bologna period)
Restricted access - author's decision
Covenantee: Hochschule Aalen -
Design and operation of multiport converters for distribution systems
(Universitat Politècnica de Catalunya, 2024-02)
Master thesis
Open AccessElectrical power distribution systems are experiencing an increase in renewable energy integra- tion, which is reversing the power flow during some periods and modifying their conventional operation. In this context, the ... -
Design and operation of multiport converters for distribution systems
(Universitat Politècnica de Catalunya, 2024-02)
Master thesis
Open AccessElectrical power distribution systems are experiencing an increase in renewable energy integra- tion, which is reversing the power flow during some periods and modifying their conventional operation. In this context, the ... -
Development of Digital Twins in an industry
(Universitat Politècnica de Catalunya, 2022-09-19)
Master thesis
Open AccessThis Master Thesis consists in the development process of a digital twin of an industry. The digital twin includes the model of the main assets of an industry, such as batteries, converters, photovoltaic generation, and ... -
Duplex stainless steels for thermal energy storage: characterization of oxide scales formed in carbonate salts at 500 °C
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-15)
Article
Open AccessNext generation concentrated solar power (CSP) plants promise a higher operating temperature and better efficiency. However, new issues related to the corrosion against protection of the construction alloys need to be ... -
Emmagatzematge associat a la generació renovable
(Universitat Politècnica de Catalunya, 2024-02-08)
Master thesis
Restricted access - author's decisionAquesta memòria tracta sobre l’emmagatzematge en generació renovable. Intenta respondre i explorar les limitacions d’un sistema d’emmagatzematge en un parc eòlic híbrid a les restriccionstècniques de"RedEléctrica"(en el ...
