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Ara es mostren els items 9033-9052 de 245817
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Active damping control for a three phase grid-connected inverter using sliding mode control
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper proposes a ne w active damping method based on virtual resistors for three-phase grid connected voltage source inverters (VSI) with LCL filter. The use of this filters is a standard solution to provide 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)
Text en actes de congrés
Accés obertThis 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 ... -
Active damping of a DC network with a constant power load: an adaptive passivity-based control approach
(2018)
Comunicació de congrés
Accés obertThis paper proposes a nonlinear, adaptive controller to increase the stability margin of a direct-current (DC) small-scale electrical network containing a constant power load, whose value is unknown. Due to their negative ... -
Active damping: an Hinf model reference approach
(Institute of Electrical and Electronics Engineers (IEEE), 2018-08-01)
Article
Accés obertThis paper focuses on the design of an active-damping controller that shapes the dynamics of an LCL grid connected voltage source converter (VSC) to mimic an L-filter connected VSC. This makes possible to use simpler ... -
Active deep learning for medical imaging segmentation
(Universitat Politècnica de Catalunya, 2017)
Treball Final de Grau
Accés obert
Realitzat a/amb: Institut national polytechnique de ToulouseThis thesis proposes a novel active learning framework capable to train effectively a convolutional neural network for semantic segmentation of medical imaging, with a limited amount of training labeled data. Our approach ... -
Active edible films based on arrowroot starch with microparticles of blackberry pulp obtained by freeze-drying for food packaging
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-08-23)
Article
Accés obertThis research work evaluated the influence of the type of incorporation and variation in the concentration of blackberry pulp (BL) and microencapsulated blackberry pulp (ML) powders by freeze-drying on the chemical and ... -
Active fault detection based on set-membership approach for uncertain discrete-time systems
(2020-09-25)
Article
Accés obertActive fault detection facilitates determination of the fault characteristics by injecting proper auxiliary input signals into the system. This article proposes an observer-based on-line active fault detection method for ... -
Active flow control for external aerodynamics: from micro air vehicles to a full aircraft in stall
(Institute of Physics (IOP), 2020-04-01)
Article
Accés obertWe investigate the aerodynamic performance of active flow control of airfoils and wings using synthetic jets with zero net-mass flow. The study is conducted via wall-resolved and wall-modeled large-eddy simulation using ... -
Active flow control for three-dimensional cylinders through deep reinforcement learning
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Text en actes de congrés
Accés obertThis paper presents for the first time successful results of active flow control with multiple independently controlled zero-net-mass-flux synthetic jets. The jets are placed on a three-dimensional cylinder along its span ... -
Active flow control in aerodynamic applications.
(Universitat Politècnica de Catalunya, 2020-04)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorThe focus of this thesis is to determine the e ect of Active Flow Control ( AFC from now), studying, analyzing the behavior of airfoil and afterwards, implementing AFC and evaluate its impact on aerodynamic performance. ... -
Active flow control methods for aerodynamic applications
(Universitat Politècnica de Catalunya, 2020-07-17)
Tesi
Accés obertThe cylinder in cross flow has been the subject of many numerical and experimental studies since it provides a deep insight of the physical phenomena occurring in a wide range of flow regimes. Despite a number of investigations ... -
Active flow control of airfoils via multi-sweeping jets at ultra low Reynolds numbers
(Universitat Politècnica de Catalunya, 2023-07-13)
Projecte Final de Màster Oficial
Accés obertThe primary focus is on implementing multiple sweeping jets to eliminate the requirement for high-lift equipment with mechanical components, which are at risk for mechanical failures and increase weight due to redundant ... -
Active flow control of an aircraft in full stall
(2021)
Text en actes de congrés
Accés obertThe aerodynamic performance of active flow control on wings using synthetic jets with zero net-mass flow is investigated. The study is conducted via wall-modeled large-eddy simulations using a finiteelement-based solver. ... -
Active flow control of flow past SD7003 airfoil with synthetic Jets at Re=60000
(Universitat Politècnica de Catalunya, 2022-09-15)
Treball Final de Grau
Accés obertActive Flow Control (AFC) can improve markedly the aerodynamic capabilities of airfoils. Focusing on one of its strategies employing Synthetic Jet Actuators (SJA), the present bachelor thesis studied the performance of two ... -
Active flow control of the boundary layer on an airfoil: a numerical study
(Universitat Politècnica de Catalunya, 2021-01)
Treball Final de Grau
Accés obertEn aquest projecte es duu a terme un estudi per comprovar l’efecte de la utilització de control de flux actiu sobre el rendiment d’un perfil aerodinàmic utilitzant el software OpenFOAM. Per fer-ho, primerament s’elabora ... -
Active flow control on cambered airfoils at ultralow Reynolds using synthetic jets
(Universitat Politècnica de Catalunya, 2017-09-21)
Treball Final de Grau
Accés obertActive flow control methods have been widely studied for more than a decade in order to improve the airfoil's efficiency. This study is focused on fluidic actuation (the addition or subtraction of momentum to/from the ... -
Active flow control on laminar flow over a backward facing step
(Institute of Physics (IOP), 2015-09-21)
Article
Accés obertIn the present study, two dimensional flow over a backward-facing step in laminar flow regime with application of active flow control (AFC) technique is analysed. The aim of the present work is to gauge the effectiveness ... -
Active flow control on SD7003 airfoil using synthetic jets
(2019)
Text en actes de congrés
Accés restringit per política de l'editorialThe present paper focuses on applying the Active Flow Control (AFC) technology on the Selig-Donovan 7003 (SD7003) airfoil at Reynolds number 60,000, the idea is to employ synthetic jets in order to modify the lift and drag ... -
Active flow control optimisation on SD7003 airfoil at pre and post-stall angles of attack using synthetic jets
(2021-06-10)
Article
Accés obertThe use of Active Flow Control (AFC) technologies to modify the forces acting on streamlined bodies is one of the most active research fields in aerodynamics. For each particular application, finding the optimum set of AFC ... -
Active flow control optimization on Selig Donovan 7003 airfoil
(Universitat Politècnica de Catalunya, 2023-06-16)
Tesi
Accés obert(English) The PhD focuses on the study of the flow around an airfoil at different Angles of Attack (AoA) with and without the implementation of Active Flow Control (AFC), while maintaining the Reynolds number constant at ...
