Exploració per autor "Costa Castelló, Ramon"
Ara es mostren els items 140-159 de 217
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Observación de la fracción de agua líquida en pilas de combustible tipo PEM de cátodo abierto
Costa Castelló, Ramon; Luna Pacho, Julio Alberto (Universidad de Oviedo, 2017)
Text en actes de congrés
Accés obertEn este trabajo se diseña un observador no-lineal basado en modos deslizantes para la estimación de la fracción de agua líquida en una pila de combustible tipo PEM de cátodo abierto. La pila de combustible se modela con ... -
Observador de alta ganancia con zona muerta ajustable para estimar la saturación de agua líquida en pilas de combustible tipo PEM
Cecilia Piñol, Andreu; Costa Castelló, Ramon (Elsevier, 2020-04-01)
Article
Accés obertIn the area of PEM fuel cells, water management remains one of the most challenging issues affecting PEMFC efficiency and lifetime. Liquid water active control and supervision techniques are limited by the absence of online ... -
Observador de alta ganancia con zona muerta para pilas de combustible PEM de cátodo abierto
Cecilia Piñol, Andreu; Costa Castelló, Ramon (2019)
Text en actes de congrés
Accés obertEn este trabajo se presenta el diseño de un observador de estado para la estimación de la saturación de agua líquida en la capa catalizadora del cátodo de una pila de combustible PEM de cátodo abierto. El observador propuesto ... -
Odd-Harmonic Digital Repetitive Control of a Single-Phase Current Active Filter
Costa Castelló, Ramon; Griñó Cubero, Robert; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2004-07)
Article
Accés obertShunt active power filters have been proved as useful elements to correct distorted currents caused by nonlinear loads in power distribution systems. This work presents an all-digital approach, based on the repetitive ... -
Odd-harmonic repetitive control of an active filter under varying network frequency: a small-gain theorem-based stability analysis
Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés; Costa Castelló, Ramon; Cardoner Parpal, Rafel (2010)
Text en actes de congrés
Accés restringit per decisió de l'autorThis work deals with the design and analysis of a controller for a shunt active power filter. The design is based on combined feedforward and feedback actions, the last using repetitive control, and aims at the obtention ... -
Odd-harmonic repetitive control of an active filter under varying network frequency: control design and stability analysis
Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés; Costa Castelló, Ramon; Cardoner Parpal, Rafel (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
Text en actes de congrés
Accés obertThis work deals with the design and analysis of a controller for a shunt active power filter. The design is based on combined feedforward and feedback actions, the last using repetitive control, and aims at the obtention ... -
Odd-harmonic Repetitive Control of an Active Filter under Varying Network Frequency: Practical Considerations
Costa Castelló, Ramon; Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés; Cardoner Parpal, Rafel (2010)
Text en actes de congrés
Accés restringit per política de l'editorialThis work deals with the design and analysis of a controller for a shunt active power filter. The design is based on combined feedforward and feedback actions, the last using oddharmonic repetitive control, and aims at ... -
On addressing the security and stability issues due to false data injection attacks in DC microgrids an adaptive observer approach
Cecilia Piñol, Andreu; Sahoo, Subham; Dragicevic, Tomislav; Costa Castelló, Ramon; Blaabjerg, Frede (Institute of Electrical and Electronics Engineers (IEEE), 2022)
Article
Accés obertThis paper proposes an observer-based methodology to detect and mitigate false data injection attacks in collaborative DC microgrids. The ability of observers to effectively detect such attacks is complicated by the presence ... -
On preserving passivity in sampled-data linear systems
Costa Castelló, Ramon; Fossas Colet, Enric (2005-03)
Report de recerca
Accés obertPassivity is a well know phenomenon in several engineering areas. Due to its interesting properties, it is used in several areas of control engineering. Generally, this property is lost under direct discretization. In this ... -
On real time teaching in non computer science curricula
Costa Castelló, Ramon (Universitat Politècnica de Catalunya. Institut d'Organització i Control de Sistemes Industrials, 2005-01)
Report de recerca
Accés obertThis work describes the topics taught on a realtime programming course. This course is part of the Degrees in Electronics, Mechanical Engineering and Automatic Control, and thus most students do not have a background ... -
On state-estimation in weakly-observable scenarios and implicitly regularized observers
Cecilia Piñol, Andreu; Costa Castelló, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés obertThis work proposes a framework to design observers for systems that present low observability. It is shown that, in these scenarios, the estimation problem becomes ill-posed, which drastically limits the performance of ... -
On teaching digital control systems in a generic engineering degree
Lerma Macaya, Eneko; Costa Castelló, Ramon; Griñó Cubero, Robert; Sanchis, Carlos (2019)
Text en actes de congrés
Accés obertIn this work, the subject of digital control taught in a generic engineering degree is described. In particular, the contents of the course, the experimental environment and the interactive tools used in teaching are ... -
On teaching model-based fault diagnosis in engineering curricula
Costa Castelló, Ramon; Puig Cayuela, Vicenç; Blesa Izquierdo, Joaquim (2016-02-01)
Article
Accés obertThis article presents an example of how a fault-diagnosis course has been included in an engineering curricula in a motivating way, in particular, in the automatic control and robotic master's degree program at UPC. This ... -
On the role of virtual laboratories in an undergraduate power electronics introductory course
Biel Solé, Domingo; Vento Maldonado, Jorge; Costa Castelló, Ramon (2010-01)
Report de recerca
Accés obert -
Online state of charge estimation for a vanadium redox flow battery with unequal flow rates
Clemente León, Alejandro; Cecilia Piñol, Andreu; Costa Castelló, Ramon (Elsevier, 2023-04)
Article
Accés obertThis study presents an observer-based methodology to estimate, in real-time, the state of charge of a Vanadium redox flow battery. Different from the available results in the literature, this work presents a new estimator ... -
Operación óptima de la planta de los 4 tanques
Alva Hoves, Mauricio; Camas Delgado, Alejandro; García Delgado, Néstor; Costa Castelló, Ramon (Comité Español de Automática (CEA-IFAC), 2014)
Comunicació de congrés
Accés obertEste documento presenta la metodologi´a empleada para operar de forma o´ptima la planta de los 4 tanques segu´n los criterios establecidos en el concurso en Ingenieri´a de Control 2014. El sistema de control desarrollado ... -
Optimal anti-windup synthesis for repetitive controllers
Ramos Fuentes, German A.; Costa Castelló, Ramon (2013-09)
Article
Accés restringit per política de l'editorialRepetitive controllers use internal models that provide very high gain at a selected fundamental fre- quency and its harmonics, additionally, some of the internal models may result unstable, as in the high order repetitive ... -
Optimal energy management in a standalone microgrid, with photovoltaic generation, short-term storage, and hydrogen production
Cecilia Piñol, Andreu; Carroquino, Javier; Roda Serrat, Vicente; Costa Castelló, Ramon; Barreras Toledo, Felix Manuel (2020-01-01)
Article
Accés obertThis paper addresses the energy management of a standalone renewable energy system. The system is configured as a microgrid, including photovoltaic generation, a lead-acid battery as a short term energy storage system, ... -
Optimal sizing of storage elements for a vehicle based on fuel cells, supercapacitors, and batteries
Sampietro Saquicela, José Luis; Puig Cayuela, Vicenç; Costa Castelló, Ramon (2019-01-01)
Article
Accés obertTo achieve a vehicle-efficient energy management system, an architecture composed of a PEM fuel cell as the main energy source and a hybrid storage system based on battery banks and supercapacitors is proposed. This paper ... -
Parameter estimation algorithm of H-100 PEM fuel cell
Xing, Yashan; Costa Castelló, Ramon; Jing, Na (2019)
Text en actes de congrés
Accés obertPolymer electrolyte membrane fuel cells (PEMFCs) have been recognized as one of the most promising eneygy conversion devices for commercial application due to their specific advantages, such as low operation temperature, ...