Browsing by Subject "Xarxes elèctriques intel·ligents"
Now showing items 1-20 of 76
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A comprehensive model for the design of a microgrid under regulatory constraints using synthetical data generation and stochastic optimization
(2020-10-26)
Article
Open AccessAs renewable energy installation costs decrease and environmentally-friendly policies are progressively applied in many countries, distributed generation has emerged as the new archetype of energy generation and distribution. ... -
A coordinated voltage regulation algorithm of a power distribution grid with multiple photovoltaic distributed generators based on active power curtailment and on-line tap changer
(2023-07-01)
Article
Open AccessThe aim of this research is to manage the voltage of an active distribution grid with a low X/R ratio and multiple Photovoltaic Distributed Generators (PVDGs) operating under varying conditions. This is achieved by providing ... -
A model predictive control-based energy management scheme for hybrid storage system in islanded microgrids
(Institute of Electrical and Electronics Engineers (IEEE), 2020-05-21)
Article
Open AccessModel predictive control (MPC) facilitates online optimal resource scheduling in electrical networks, thermal systems, water networks, process industry to name a few. In electrical systems, the capability of MPC can be ... -
A new PWM strategy for grid-connected half-bridge active NPC converters with losses distribution balancing mechanism
(2015-01-09)
Article
Open AccessPhotovoltaic systems technological development is driven by the request for higher efficiency and safety. These concerns influence also the choice of the power converter stage. Several topologies have been proposed and ... -
A reinforcement learning approach using Markov decision processes for battery energy storage control within a smart contract framework
(Elsevier, 2024-05-10)
Article
Restricted access - publisher's policyWith the increasing penetration of renewable energy sources (RESs), the necessity for employing smart methods to control and manage energy has become undeniable. This study introduces a real-time energy management system ... -
A robust islanding detection method with zero-non-detection zone for distribution systems with DG
(2021-12-01)
Article
Open AccessThis paper proposes a strategy for detecting unintentional islanding operations (IOs) in distribution networks (DNs) with distributed generation (DG), which eliminating the non-detection zone (NDZ). This hybrid method ... -
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 ... -
Active damping of a DC network with a constant power load: an adaptive observer-based design
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference report
Open AccessThis paper proposes a nonlinear, output feedback, adaptive controller to increase the stability margin of a direct-current (DC), small-scale, electrical network containing an unknown constant power load. Due to their ... -
Adaptació a la xarxa intel·ligent d'una empresa de distribució elèctrica
(Universitat Politècnica de Catalunya, 2016-03)
Master thesis (pre-Bologna period)
Restricted access - author's decisionEl sistema elèctric, un sector que destaca pels pocs canvis soferts des dels seus inicis, està en l’actualitat vivint una autèntica revolució tecnològica però també ideològica amb la transformació de les xarxes elèctriques ... -
Advanced Distribution Measurement Technologies and Data Applications for Smart Grids: A Review
(2020-07-20)
Article
Open AccessThe integration of advanced measuring technologies in distribution systems allows distribution system operators to have better observability of dynamic and transient events. In this work, the applications of distribution ... -
Analysis of an innovation: the ADMS microgrid management system
(Universitat Politècnica de Catalunya, 2017-06-15)
Bachelor thesis
Open AccessThe change of the electrical grid towards the Smart Grid development is around the corner. Electric vehicles, distributed energy resources, microgrids, demand response, energy storage or grid automatization are changing ... -
Analysis of consensus-based islanded microgrids subject to unexpected electrical and communication partitions
(Institute of Electrical and Electronics Engineers (IEEE), 2018-01-01)
Article
Open AccessMicrogrids are power systems consisting of an electrical network composed by distributed loads and generation units that may include a communication network for improved operation. The considered microgrid in islanded mode ... -
Analysis of Neutral Point Clamped power converters in FPL systems under grid faults
(2022)
Conference lecture
Restricted access - publisher's policyDistribution lines are dealing with several challenges such as the increase of power consumption, the integration of renewable resources, etc. which are driving them to more intelligent grids or smart grids. In these smart ... -
Análisis de una estrategia de control predictivo basada en escalas temporales para la gestión de una microred conectada a red
(Universidad Miguel Hernández, 2016)
Conference report
Open AccessEste trabajo aborda la problemática del diseño del control terciario de un sistema de gestión de la energía (EMS) para una microred híbrida propuesta en el proyecto Machrek Energy Development (MED-Solar). El sistema está ... -
Application of subsynchronous damping controller to static var compensator
(2015)
Conference report
Open AccessThis paper proposes a new auxiliary Subsynchronous Damping Controller (SSDC) for the Static Var Compensator (SVC) to damp out subsynchronous oscillations in power system containing series compensated transmission lines. ... -
Artificial intelligence-based protection for smart grids
(2022-07-05)
Article
Open AccessLately, adequate protection strategies need to be developed when Microgrids (MGs) are connected to smart grids to prevent undesirable tripping. Conventional relay settings need to be adapted to changes in Distributed ... -
Assessment of the Feasibility of the Application of Blockchain and Smart Contracts in the Energy Sector and Design of a Decentralized Electricity Trading Micro-Market
(Universitat Politècnica de Catalunya, 2017-09-13)
Master thesis
Restricted access - confidentiality agreement -
Centralized flexibility services for distribution system operators through distributed flexible resources
(Universidad Santiago de Cali, 2019)
Conference report
Open AccessUnder the context of smart grids within smart cities, increasing distributed generation, consumer empowerment and emerging flexibility services, distribution system operators could benefit by activating flexibility in ... -
Centralized protection strategy for medium voltage DC microgrids
(2016-08-15)
Article
Open AccessThis paper presents a centralized protection strategy for medium voltage dc (MVDC) microgrids. The proposed strategy consists of a communication-assisted fault detection method with a centralized protection coordinator and ...
