Browsing by Subject "Electrical engineering"

Now showing items 1-20 of 110

    • A 3-D Pareto-based shading analysis on solar photovoltaic system design optimization 

      Asef, Pedram; Bargalló Perpiñá, Ramón; Barzegaran, M.R.; Lapthorn, Andrew (2018-06-20)
      Article
      Open Access

    • A Multiple-Reference Complex-Based Controller for Power Converters 

      Serra, Federico; Dòria Cerezo, Arnau; Bodson, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2021-12-01)
      Article
      Open Access
      A multiple-reference complex-based controller is proposed for three-phase power converters feeding nonlinear and unbalanced loads. The control scheme incorporates a stable multiple-complex coefficient filter with bandwidths ...

    • A new "doctor and patient" optimization algorithm: An application to energy commitment problem 

      Dehghani, Mohammad; Mardaneh, Mohammad; Guerrero, Josep M.; Parkash Malik, Om; Ramírez Mendoza, Ricardo A.; Matas Alcalá, José; Vasquez Quintero, Juan Carlos (MDPI, 2020-08-21)
      Article
      Open Access
      Regular assessments of events taking place around the globe can be a conduit for the development of new ideas, contributing to the research world. In this study, the authors present a new optimization algorithm named doctor ...

    • A new LPF-based grid frequency estimation for the SOGI filter with improved harmonic rejection 

      Matas Alcalá, José; Martín Cañadas, María Elena; El Mariachet Carreño, Jordi; Abusorrah, A.; Al-Turki, Y.A. (2018)
      Conference lecture
      Open Access
      This paper proposes a new method for the estimation of the grid voltage frequency using a low-pass filter (LPF) approach. The estimated frequency is used to tune a second order generalized integrator (SOGI) filter commonly ...

    • A non-centralized predictive control strategy for wind farm active power control: A wake-based partitioning approach 

      Siniscalchi-Minna, Sara; Bianchi, Fernando Daniel; Ocampo-Martínez, Carlos; Domínguez García, José Luis; De Schutter, Bart (Elsevier, 2020)
      Article
      Open Access
      Owing to wake effects, the power production of each turbine in a wind farm is highly coupled to the operating conditions of the other turbines. Wind farm control strategies must take into account these couplings and produce ...

    • Acondicionadores de energía distribuidos en redes de paneles fotovoltaicos 

      González Fernández, Daniel (Universitat Politècnica de Catalunya, 2012-07-20)
      Bachelor thesis
      Open Access
      Actualmente existen gran variedad de aplicaciones que se alimentan gracias a pequeños sistemas fotovoltaicos. La potencia eléctrica que suministran los paneles fotovoltaicos varía en función de factores como la iluminación ...

    • Adaptive vector control of wave energy converters 

      Mir Cantarellas, Antonio; Remón Rodríguez, Daniel; Rodríguez Cortés, Pedro (2017-05-01)
      Article
      Restricted access - publisher's policy
      Many grid connection concerns, such as maximum power absorption and improved power quality, are increasingly gaining research interest in the wave energy sector, as several wave energy converter (WEC) concepts approach ...

    • Advanced structures for grid synchronization of power converters in distributed generation applications 

      Luna Alloza, Álvaro; Rocabert Delgado, Joan; Candela García, José Ignacio; Rodríguez Cortés, Pedro; Teodorescu, Remus; Blaabjerg, Frede (2012)
      Conference report
      Restricted access - publisher's policy
      The Transmission System Operators are specially concerned about the Low Voltage Ride Through requirements of distributed generation power plants. Solutions based on the installation of STATCOMs and DVRs, as well as on ...

    • An enhancing fault current limitation hybrid droop/V-f control for grid-tied four-wire inverters in AC microgrids 

      Heredero Peris, Daniel; Chillón Antón, Cristian; Pagès Giménez, Marc; Montesinos Miracle, Daniel; Santamaria, Mikel; Rivas, David; Aguado, Monica (Multidisciplinary Digital Publishing Institute, 2018-09-22)
      Article
      Open Access
      Microgrid integration and fault protection in complex network scenarios is a coming challenge to be faced with new strategies and solutions. In this context of increasing complexity, this paper describes two specific ...

    • Analysis of MMC energy-based control structures for VSC-HVDC links 

      Sánchez Sánchez, Enric; Prieto Araujo, Eduardo; Junyent Ferré, Adrià; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2018-02-06)
      Article
      Open Access

    • Analysis on the effects of the human body on the performance of wearable textile antenna in substrate integrated waveguide technology 

      El Gharbi, Mariam; Ahyoud, Saida; Aknin, Noura; Gil Galí, Ignacio; Fernández García, Raúl (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      A wearable textile circular ring slot antenna based on a substrate integrated waveguide cavity is presented. In this paper, the focus is on studying and understanding the technical behavior of the SIW textile antenna when ...

    • Application of imperialist competitive algorithm to design an optimal controller for LFC problem 

      Rakhshani, Elyas; Luna Alloza, Álvaro; Rouzbehi, Kumars; Rodríguez Cortés, Pedro (2012)
      Conference report
      Restricted access - publisher's policy
      A novel optimization algorithm is presented to improve the design of optimal controllers for load frequency control problem. This algorithm is applied for two area LFC system with using an output feedback controller. In ...

    • Application work using software tools and didactic equipment of electrical machines in electrical engineering studies 

      Torrent Burgués, Marcel; Martínez Piera, Eusebio; Perat Benavides, Josep Ignasi (2020-01-01)
      Article
      Open Access
      This article describes the use of software tools and didactic equipment of electrical machines applied to the teaching in electrical engineering, specifically in the realization of an application work consisting of the ...

    • Automatització d'un grup electrogen per la cárrega de bateries mitjançant microcontroladors 

      Aires Jiménez, Eduardo (Universitat Politècnica de Catalunya, 2009-05)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      El projecte que es presenta a continuació tracta sobre la necessitat d’una font d’alimentació en moments puntuals per carregar un grup de bateries. Això es fa degut al fet que la major part d’acumuladors es malmeten quan ...

    • CATRENE-PANAMA project review June 2010 

      González Jiménez, José Luis; Dufis, Cédric Yvan (2010-06-03)
      Research report
      Restricted access - confidentiality agreement
      Informe de progrés del projecte Europeu CATRENE-PANAMA sobre les tasques desenvolupades per el grup de recerca HiPICS de la UPC

    • Circuit model for mode conversion in coplanar waveguide assymmetric series-impedances 

      Ribó i Pal, Miquel; Cruz Romero, Janill Marie de la; Pradell i Cara, Lluís (Institution of Electrical Engineers, 1999-10)
      Article
      Open Access
      A new 'circuit model' for converting between even and odd modes in asymmetric series impedances in the ground plane of a coplanar waveguide is presented. The model is based on the separation of modes into two input and two ...

    • Comparison of cell selection methods for modular multilevel converters 

      Antonio Ferreira, Abel; Gomis Bellmunt, Oriol (2016)
      Conference report
      Restricted access - publisher's policy
      The modular multilevel-based power converters (MMC) are very interesting solutions for high power transmission over large distances. The modularity of the converter is achieved by cascading individual and low voltage rated ...

    • Continuous assessment with self-checking tasks 

      Korhonen, Juhamatti; Naukkarinen, Johanna; Niemelä, Hanna; Järvisalo, Heikki; Silventoinen, Pertti (Universitat Politècnica de Catalunya, 2022-09)
      Conference report
      Open Access
      This paper discusses the applicability and benefits of self-checking tasks in continuous assessment in an electrical engineering course. The method was implemented in the first-year online graduate course of Advanced Power ...

    • Crystalline silicon solar cells beyond 20% efficiency 

      Alcubilla González, Ramón; García Molina, Francisco Miguel; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Orpella García, Alberto; Martín García, Isidro; Colina, M.; Voz Sánchez, Cristóbal; Bermejo Broto, Sandra; Puigdollers i González, Joaquim (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Conference report
      Open Access
      —This paper describes a fabrication process to obtain high efficiency c-Si cells (> 20%) based on the Laser Fired Contact Passivated Emitter Rear Cell (LFC-PERC) concept. Photovoltaic efficiencies beyond 20% have ...

    • Dancing sprites: detailed analysis of two case studies 

      Soula, Serge; Mlynarczyk, Janusz; Fullekrug, Martin; Pineda Rüegg, Nicolau; Georgis, Jean-Francois; Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Fabró Tàpia, Ferran (2017-03-27)
      Article
      Open Access
      On 29–30 October 2013, a low-light video camera installed at Pic du Midi (2877¿m), recorded transient luminous events above a very active storm over the Mediterranean Sea. The minimum cloud top temperature reached -73°C, ...