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1 to 50 of 106 results
  • Digital control of a power conditioner for fuel cell/super-capacitor hybrid system

     Trujillo Caballero, Juan C.; Gomis Bellmunt, Oriol; Montesinos Miracle, Daniel; Posada Gómez, Rubén; Pouresmaeil, Edris; Aquino Robles, J.A.
    Electric power components and systems
    Date of publication: 2014-01-06
    Journal article

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    This article proposes a digital control scheme to operate a proton exchange membrane fuel cell module of 1.2 kW and a super-capacitor through a DC/DC hybrid converter. A fuel cell has been proposed as a primary source of energy, and a super-capacitor has been proposed as an auxiliary source of energy. Experimental validation of the system implemented in the laboratory is provided. Several tests have been performed to verify that the system achieves excellent output voltage (V0) regulation and super-capacitor voltage (VSC) control under disturbances from fuel cell power (PFC) and output power (P0) as well as other perturbations described in analysis results.

  • Induction heating of liquids with an L-LC resonant tank

     Quirós Jacobo, Francisco Javier; Martín Segura, Guillermo; Heredero Peris, Daniel; Montesinos Miracle, Daniel
    International Conference Heating by Electromagnetic Sources
    Presentation's date: 2013-05-23
    Presentation of work at congresses

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    Induction heating (IH) systems are used in many applications because they present many advantages compared other heating methods like quicker heating or faster start-up. This paper studies the application of IH systems for liquid heating using an L-LC resonant tank.

  • Grid-connected to/from off-grid transference for micro-grid inverters

     Heredero Peris, Daniel; Chillón Antón, Cristian; Pages Gimenez, Marc; Gross, Gabriel; Montesinos Miracle, Daniel
    International Exhibition & Conference for Power Electronics Intelligent Motion Power Quality
    Presentation's date: 2013-05-15
    Presentation of work at congresses

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    This paper compares two methods for controlling the on-line transference from connected to stand-alone mode and vice versa in converters for micro-grids. The first proposes a method where the converter changes from CSI (Current Source Inverter) in grid-connected mode to VSI (Voltage Source Inverter) in off-grid. In the second method, the inverter always works as a non-ideal voltage source, acting as VSI, using AC droop control strategy

    This paper compares two methods for controlling the on-line transference from connected to stand-alone mode and vice versa in converters for micro-grids. The first proposes a method where the converter changes from CSI (Current Source Inverter) in grid-connected mode to VSI (Voltage Source Inverter) in off-grid. In the second method, the inverter always works as a non-ideal voltage source, acting as VSI, using AC droop control strategy.

  • Multichannel high-power high-frequency converters for induction heating

     Martín Segura, Guillermo; Sala Pérez, Pau; Montesinos Miracle, Daniel; Ferrater Simón, Coia; López Mestre, Joaquim
    International Exhibition & Conference for Power Electronics Intelligent Motion Power Quality
    Presentation's date: 2013-05-15
    Presentation of work at congresses

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    This paper studies a converter structure based on the connection of basic topologies to form a multichannel converter for induction heating applications. The aim of using basic topologies is to provide a reduction of design time, the cost derived from higher volume production, stock components and installation and maintenance work. First, the aim of the paper is introduced, afterwards the topology is discussed and then implemented.

    This paper studies a converter structure based on the connection of basic topologies to form a multichannel converter for induction heating applications. The aim of using basic topologies is to provide a reduction of design time, the cost derived from higher volume production, stock components and installation and maintenance work. First, the aim of the paper is introduced, afterwards the topology is discussed and then implemented

  • A sensorless stable V/f control method for a five-phase PMSM

     Sala Perez, Pau; Galceran Arellano, Samuel; Montesinos Miracle, Daniel
    European Conference on Power Electronics and Applications
    Presentation's date: 2013-09-05
    Presentation of work at congresses

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    This paper presents a sensorless and stable control method for a five-phase permanent magnet synchronous motor (PMSM). At first, a model of a five-phase PMSM is presented. After that a stability study has been performed by the analysis of the eigenvalues of the state transition matrix of the linearized PMSM model about an operating point. The results show that the machine speed response is unstable for input frequencies below the machine rated frequency. Finally, an open-loop V/f stabilization algorithm which ensures the stability of the system over a wide range of speed is presented.

  • Study of optimization design criteria for stand-alone hybrid renewable power systems

     Martínez Díaz, Maria del Mar; Villafafila Robles, Roberto; Montesinos Miracle, Daniel; Sudria Andreu, Antoni
    International Conference on Renewable Energies and Power Quality
    Presentation's date: 2013-03-21
    Presentation of work at congresses

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  • A control technique for integration of DG units to the electrical networks

     Pouresmaeil, Edris; Miguel Espinar, Carlos; Massot Campos, Miquel; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol
    IEEE transactions on industrial electronics
    Date of publication: 2013-07
    Journal article

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    This paper deals with a multiobjective control technique for integration of distributed generation (DG) resources to the electrical power network. The proposed strategy provides compensation for active, reactive, and harmonic load current components during connection of DG link to the grid. The dynamic model of the proposed system is first elaborated in the stationary reference frame and then transformed into the synchronous orthogonal reference frame. The transformed variables are used in control of the voltage source converter as the heart of the interfacing system between DG resources and utility grid. By setting an appropriate compensation current references from the sensed load currents in control circuit loop of DG, the active, reactive, and harmonic load current components will be compensated with fast dynamic response, thereby achieving sinusoidal grid currents in phase with load voltages, while required power of the load is more than the maximum injected power of the DG to the grid. In addition, the proposed control method of this paper does not need a phase-locked loop in control circuit and has fast dynamic response in providing active and reactive power components of the grid-connected loads. The effectiveness of the proposed control technique in DG application is demonstrated with injection of maximum available power from the DG to the grid, increased power factor of the utility grid, and reduced total harmonic distortion of grid current through simulation and experimental results under steady-state and dynamic operating conditions.

  • Simulation of an induction hardening system during Curie temperature transition considering converter's performance

     Martin Segura, Guillermo; Ferrater Simón, Coia; López Mestres, Quim; Montesinos Miracle, Daniel; Bergas Jane, Joan Gabriel
    COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering
    Date of publication: 2013-01
    Journal article

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    Purpose – The aim of this paper is to simulate, test and evaluate an induction heating process considering the converter’s performance. Design/methodology/approach – In case of continuous induction hardening processes, the load changes abruptly during the transition to Curie temperature, becoming significant considering the converter’s behavior. In this paper, an induction heating system is simulated combining the numerical analysis of the electromagnetic-thermal and electrical problem, focusing mainly on the converter’s performance. The simulations are realized by using commercial FEM software and the voltage and the frequency are manually varied according to the converter’s control. The system has also been implemented in an experimental setup and the results obtained have been compared with the simulations. Findings – The importance of considering the converter’s dynamics was observed during the simulations. The simulation results showed a correspondence with the experimental results, validating the simulation procedure and demonstrating that the converter’s behavior has to be considered. Originality/value – A power converter for a real industrial induction heating process where there is a sudden change in the load parameters is simulated and experimentally tested. The importance of considering the variation of frequency and voltage during the simulation of induction heating systems is demonstrated. Some considerations for induction heating modeling regarding converter’s performance are given and the importance of converter’s dynamics is introduced. In addition, a simple and flexible method of simulating the converter operation with commercial software is presented

    Postprint (author’s final draft)

  • Design and control of a modular multilevel DC/DC converter for regenerative applications

     Montesinos Miracle, Daniel; Massot Campos, Miquel; Bergas Jane, Joan Gabriel; Galceran Arellano, Samuel; Rufer, Alfred
    IEEE transactions on power electronics
    Date of publication: 2013-08
    Journal article

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    This paper compares different cascaded and multilevel topologies to interface supercapacitors to a dc bus in regenerative braking applications. It is shown that the modular multilevel dc/dc converter (MMC) can benefit from both reduced voltage and increased frequency across the inductor to reduce its weight and volume when using phase shifting modulation. The proposed controlmethod is able to balance supercapacitor voltage while providing precise output current control. The converter topology and control method are validated with simulations and experimental results.

  • Power converter otpimal control for wind energy conversion systems.

     Trilla Romero, Lluís
    Defense's date: 2013-11-15
    Universitat Politècnica de Catalunya
    Theses

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  • Contributions of Flywheel Systems in Wind Power Plants

     Díaz González, Francisco
    Defense's date: 2013-09-30
    Universitat Politècnica de Catalunya
    Theses

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  • Implementation of grid-connected to/from off-grid transference for micro-grid inverters

     Heredero Peris, Daniel; Chillón Antón, Cristian; Pages Gimenez, Marc; Gross, Gabriel Igor; Montesinos Miracle, Daniel
    Annual Conference of the IEEE Industrial Electronics Society
    Presentation's date: 2013-11-13
    Presentation of work at congresses

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    This paper presents the transfer of a microgrid converter from/to on-grid to/from off-grid when the converter is working in two different modes. In the ¿rst transfer presented method, the converter operates as a Current Source Inverter (CSI) when on-grid and as a Voltage Source Inverter (VSI) when off-grid. In the second transfer method, the converter is operated as a VSI both, when operated on-grid and off-grid. The two methods are implemented successfully in a real platform but the later offers some advantage.

  • Electrical drives and power electronics

     Montesinos Miracle, Daniel; Bergas Jane, Joan Gabriel; Pouresmaeil, Edris
    Date of publication: 2012-04
    Book chapter

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  • LCL filter design for an NPC three-level three-phase grid connected inverter

     Benet Barberan, Jordi; Pagès Giménez, Marc; Galceran Arellano, Samuel; Sudria Andreu, Antoni; Montesinos Miracle, Daniel
    International Exhibition & Conference for Power Electronics Intelligent Motion Power Quality
    Presentation's date: 2012-05-08
    Presentation of work at congresses

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  • MPPT algorithm and photovoltaic array emulator using DC/DC converters

     Abidi, Houda; Bennani Benabdelghani, Afef; Montesinos Miracle, Daniel
    IEEE Mediterranean Electrotechnical Conference
    Presentation's date: 2012
    Presentation of work at congresses

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  • Fault tolerant NPC converter control for isolated PV sytems : application for an isolated telecommunication center

     Ben Abdelghani, Hafedh; Bennani Benabdelghani, Afef; Slama Belkhodja, I.; Montesinos Miracle, Daniel
    IEEE Mediterranean Electrotechnical Conference
    Presentation's date: 2012
    Presentation of work at congresses

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    Continuity operating within isolated telecommunication sites is an important challenge. In this paper, a new fault tolerant SVM (Space Vector Modulation) strategy for 3level NPC (Neutral point Clamped) inverter used in isolated telecommunication sites is proposed. It inssures a continuous operation of the laod after a breakdown of an inverter power switch. Simulation results prove the good performances of the proposed srategy

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    Autonomous photovoltaic lighting system  Open access

     Hafez, Ahmed A. A.; Montesinos Miracle, Daniel; Sudria Andreu, Antoni
    Journal of electrical engineering
    Date of publication: 2012
    Journal article

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    This paper introduces a comparison between the conventional and Photovoltaic (PV) lighting systems. A simple sizing procedure for a PV stand-alone system was advised. The paper also proposes a novel PV lighting system. The proposed system is simple, compact and reliable. The system operation was investigated by thoroughly mathematical and simulation work.

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    Multilevel modular DC/DC converter for regenerative braking using supercapacitors  Open access

     Massot Campos, Miquel; Montesinos Miracle, Daniel; Bergas Jane, Joan Gabriel; Rufer, Alfred
    Journal of Energy and Power Engineering
    Date of publication: 2012-07-31
    Journal article

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    Regenerative braking is presented in many electric traction applications such as electric and hybrid vehicles, lifts and railway. The regenerated energy can be stored for future use, increasing the efficiency of the system. This paper outlines the benefits of the MMC (modular multilevel converter) in front of the cascaded or series connection of converters to achieve high voltage from low voltage storage elements such as supercapacitors. The paper compares three different solutions and shows that the MMC can benefit from weight and volume reduction of the output inductance when shifted switching modulation strategy is used. Using this modulation strategy, not only the output frequency is increased, but also the magnitude of the inductor applied voltage is reduced, reducing inductor size and volume.

  • All-digital DSP-based phase-locked loop for induction heating applications

     Martín Segura, Guillermo; Sala Pérez, Pau; Ferrater Simon, Maria Misericordia; López Mestre, Joaquim; Bergas Jane, Joan Gabriel; Montesinos Miracle, Daniel
    European transactions on electrical power
    Date of publication: 2012
    Journal article

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  • Hysteresis current control technique of VSI for compensation of grid-connected unbalanced loads

     Pouresmaeil, Edris; Akorede, Mudathir Funsho; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol; Trujillo Caballero, Juan Carlos
    Electrical engineering
    Date of publication: 2012-11-29
    Journal article

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    The global trends nowadays in the power generation industry are to supplement the electricity production using distributed generation (DG) technologies based on renewable energy resources such as photovoltaic, wind power, etc. However, failure to properly control the operation of distributed energy resources as they connect to the exiting power grid could provoke many power quality problems on the grid side. For this reason, due considerations must be given to power generation and safe running before DG units is actually integrated into the power grid. The main aim of this paper is to address the grid interconnection issues that usually arise as DG units connect to the electric grid. The proposed strategy, implemented in Matlab/Simulink environment in different operating scenarios, provides compensation for active, reactive, unbalanced, and harmonic current components of grid-connected nonlinear unbalanced loads. The simulation results obtained in this study demonstrate the level of accuracy of the proposed technique, which ensure a balance in the overall grid phase currents, injection of maximum available power from DG resources to the grid, improvement of the utility grid power factor, and a reduction in the total harmonic distortion of grid currents.

  • Control scheme of three level NPC inverter for integration of renewable energy resources into AC grid

     Pouresmaeil, Edris; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol
    IEEE systems journal
    Date of publication: 2012-06
    Journal article

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    This paper presents a multiobjective control scheme based on the dynamic model of three-level, neutral-point-clamped voltage source inverter for integration of distributed generation (DG) resources based on renewable energy resources to the distribution grid. The proposed model has been derived from the abc/αβ and αβ/dq transformation of the AC system variables. The proposed control technique generates the compensation current references and by setting appropriate references of DG control loop, the DG link not only provides active and reactive currents in fundamental frequency, but also it can supply nonlinear load harmonic currents with a fast dynamic response. Simulation results and mathematical analysis have achieved a reduced total harmonic distortion, increased power factor, inject maximum power of renewable energy resources via a multilevel converter as an interface to the AC grid. It also compensated the active and reactive powers of linear and nonlinear loads. The analyses and simulation results show the high performance of proposed control scheme in the integration of renewable energy resources to the AC grid.

    Postprint (author’s final draft)

  • Power Conditioner based fuel cell and backup power system with supercapacitor  Open access

     Trujillo Caballero, Juan Carlos
    Defense's date: 2012-03-30
    Department of Electrical Engineering, Universitat Politècnica de Catalunya
    Theses

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    PEMFCs are the most popular type of Fuel Cells (FCs) and traditionally use hydrogen as the fuel. One FC problem is its relative slow dynamics caused by the time constant of the hydrogen and oxygen supply systems that can be in the range of several seconds. In this sense, supercapacitors (SCs) respond faster than FC to a fast increase or decrease in power demand. Thus, using SCs together with FCs improves FC life and performance by absorbing faster load changes and preventing fuel starvation of the FC. Therefore, it becomes necessary to study structures of power conditioners with their respective control systems that can mitigate the disadvantages mentioned of the FC itself. Several researches have studied the different topologies with their respective control proposals to operate FC and SC. This thesis proposes a digital control scheme to operate a PEMFC module of 1.2 kW and a SC through a DC/DC hybrid converter. A FC has been proposed as a primary source of energy and a SC has been proposed as an auxiliary source of energy. An experimental validation of the system implemented in the laboratory is provided. Several tests have been performed to verify that the system achieves an excellent output voltage (V0) regulation and SC Voltage (VSC) control, under disturbances from FC power (PFC) and output power (P0) as well as other perturbations described in analysis results.

  • Advance Control of Multilevel Converters for Integration of Distributed Generation Resources into AC Grid  Open access

     Pouresmaeil, Edris
    Defense's date: 2012-03-27
    Department of Electrical Engineering, Universitat Politècnica de Catalunya
    Theses

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    Distributed generation (DG) with a converter interface to the power grid is found in many of the green power resources applications. This dissertation describes a multi-objective control technique of voltage source converter (VSC) based on multilevel converter topologies, for integration of DG resources based on renewable energy (and non-renewable energy)to the power grid. The aims have been set to maintain a stable operation of the power grid, in case of di erent types of grid-connected loads. The proposed method provides compensation for active, reactive, and harmonic load current components. A proportional-integral (PI) control law is derived through linearization of the inherently non-linear DG system model, so that the tasks of current control dynamics and dc capacitor voltage dynamics become decoupled. This decoupling allows us to control the DG output currents and the dc bus voltage independently of each other, thereby providing either one of these decoupled subsystems a dynamic response that signi cantly slower than that of the other. To overcome the drawbacks of the conventional method, a computational control delay compensation method, which delaylessly and accurately generates the DG reference currents, is proposed. The rst step is to extract the DG reference currents from the sensed load currents by applying the stationary reference frame and then transferred into synchronous reference frame method, and then, the reference currents are modi ed, so that the delay will be compensated. The transformed variables are used in control of the multilevel voltage source converter as the heart of the interfacing system between DG resources and power grid. By setting appropriate compensation current references from the sensed load currents in control circuit loop of DG link, the active, reactive, and harmonic load current components will be compensated with fast dynamic response, thereby achieving sinusoidal grid currents in phase with load voltages while required power of loads is more than the maximum injected power of the DG resources. The converter, which is controlled by the described control strategy, guarantees maximum injection of active power to the grid continuously, unity displacement power factor of power grid, and reduced harmonic load currents in the common coupling point. In addition, high current overshoot does not exist during connection of DG link to the power grid, and the proposed integration strategy is insensitive to grid overload.

    La Generació Distribuïda (DG) injectada a la xarxa amb un convertidor estàtic és una solució molt freqüent en l'ús de molts dels recursos renovables. Aquesta tesis descriu una técnica de control multi-objectiu del convertidor en font de tensió (VSC), basat en les topologies de convertidor multinivell, per a la integració de les fonts distribuïdes basades en energies renovables i també de no renovables.Els objectius fixats van encaminats a mantenir un funcionament estable de la xarxa elèctrica en el cas de la connexió de diferents tipus de càrregues. El mètode de control proposat ofereix la possibilitat de compensació de les components actives i reactives de la potencia, i les components harmòniques del corrent consumit per les càrregues.La llei de control proporcional-Integral (PI) s’obté de la linearització del model inherentment no lineal del sistema, de forma que el problema de control del corrent injectat i de la tensió d’entrada del convertidor queden desacoblats. Aquest desacoblament permet el control dels corrents de sortida i la tensió del bus de forma independent, però amb un d’ells amb una dinàmica inferior.Per superar els inconvenients del mètode convencional, s’usa un retard computacional, que genera les senyals de referència de forma acurada i sense retard. El primer pas es calcular els corrents de referència a partir de les mesures de corrent. Aquest càlcul es fa primer transformant les mesures a la referència estacionaria per després transformar aquests valors a la referència síncrona. En aquest punt es on es poden compensar els retards.Les variables transformades son usades en els llaços de control del convertidor multinivell. Mitjançant aquests llaços de control i les referències adequades, el convertidor és capaç de compensar la potencia activa, reactiva i els corrents harmònics de la càrrega amb una elevada resposta dinàmica, obtenint uns corrents de la xarxa de forma completament sinusoïdal, i en fase amb les tensions.El convertidor, controlat amb el mètode descrit, garanteix la màxima injecció de la potencia activa, la injecció de la potencia reactiva per compensar el factor de potencia de la càrrega, i la reducció de les components harmòniques dels corrents consumits per la càrrega. A més, garanteix una connexió suau entre la font d’energia i la xarxa. El sistema proposat es insensible en front de la sobrecarrega de la xarxa

  • Induction heating converter's design, control and modeling applied to continuous wire heating  Open access

     Martin Segura, Guillermo
    Defense's date: 2012-06-22
    Department of Electrical Engineering, Universitat Politècnica de Catalunya
    Theses

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    Induction heating is a heating method for electrically conductive materials that takes advantage of the heat generated by the Eddy currents originated by means of a varying magnetic field. Since Michael Faraday discovered electromagnetic induction in 1831, this phenomena has been widely studied in many applications like transformers, motors or generators' design. At the turn of the 20th century, induction started to be studied as a heating method, leading to the construction of the first industrial induction melting equipment by the Electric Furnace Company in 1927. At first, the varying magnetic fields were obtained with spark-gap generators, vacuum-tube generators and low frequency motor-generator sets. With the emergence of reliable semiconductors in the late 1960's, motor-generators were replaced by solid-state converters for low frequency applications. With regard to the characterization of the inductor-workpiece system, the first models used to understand the load's behavior were based on analytical methods. These methods were useful to analyze the overall behavior of the load, but they were not accurate enough for a precise analysis and were limited to simple geometries. With the emergence of computers, numerical methods experienced a tremendous growth in the 1990's and started to be applied in the induction heating field. Nowadays, the development of commercial softwares that allow this type of analysis have started to make the use of numerical methods popular among research centers and enterprises. This type of softwares allow a great variety of complex analysis with high precision, consequently diminishing the trial and error process. The research realized in last decades, the increase in the utilization of numerical modeling and the appearance and improvement of semiconductor devices, with their corresponding cost reduction, have caused the spread of induction heating in many fields. Induction heating equipments can be found in many applications, since domestic cookers to high-power aluminum melting furnaces or automotive sealing equipments, and are becoming more and more popular thanks to their easy control, quick heating and the energy savings obtained. The present thesis focuses on the application of induction heating to wire heating. The wire heating is a continuous heating method in which the wire is continuously feeding the heating inductor. This heating method allows high production rates with reduced space requirements and is usually found in medium to high power industrial processes working 24 hours per day. The first chapters of this study introduce the induction heating phenomena, its modeling and the converters and tanks used. Afterwards, a multichannel converter for high-power and high-frequency applications is designed and implemented with the aim of providing modularity to the converter and reduce the designing time, the production cost and its maintenance. Moreover, this type of structure provides reliability to the system and enables low repairing times, which is an extremely interesting feature for 24 hours processes. Additionally, a software phase-locked loop for induction heating applications is designed and implemented to prove its flexibility and reliability. This type of control allows the use of the same hardware for different applications, which is attractive for the case of industrial applications. This phase-locked loop is afterwards used to design and implement a load-adaptative control that varies the references to have soft-switching according to load's variation, improving converter's performance. Finally, the modeling of a continuous induction wire hardening system is realized, solving the difficulty of considering the mutual influence between the thermal, electromagnetic and electric parameters. In this thesis, a continuous process is modeled and tested using numerical methods and considering converter's operation and influence in the process.

  • Emulador de paneles fotovoltaicos para el ensayo de onduladores

     Miguel Espinar, Carlos; Montesinos Miracle, Daniel; Gross, Gabriel; Martín Segura, Guillermo; Heredero Peris, Daniel
    Automática e instrumentación
    Date of publication: 2012-05
    Journal article

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  • Últimas tendencias en electrónica de potencia

     Montesinos Miracle, Daniel; Pages Gimenez, Marc
    Automática e instrumentación
    Date of publication: 2012-06
    Journal article

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  • Multilevel two quadrant DC/DC converter for regenerative braking in mobile applications

     Massot Campos, Miquel; Montesinos Miracle, Daniel; Galceran Arellano, Samuel; Rufer, Alfred
    European Conference on Power Electronics and Applications
    Presentation's date: 2011-08-31
    Presentation of work at congresses

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    In this paper different cascaded and multilevel topologies are compared for regenerative braking systems using supercapacitors (SC). It shows that the multilevel buck derived topology can beneficiate from both reduced voltage across the inductor and increased frequency to reduce the output inductance, even if there is the need for an input LC filter to reduce harmonic content in the SC. Also, the proposed control scheme is able to control the energy flow between SC and the DC bus, balancing the voltage in the SC banks. Experimental results verify the performance of the proposed converter and its control algorism.

  • Control scheme of three-level H-bridge converter for interfacing between renewable energy resources and AC grid

     Pouresmaeil, Edris; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol
    European Conference on Power Electronics and Applications
    Presentation's date: 2011-09-01
    Presentation of work at congresses

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    This paper presents a control strategy of multilevel converters for integration of renewable energy resources into power grid. The proposed technique provides compensation for active, reactive, and harmonic current components of grid-connected loads. A three-level H-bridge converter is proposed as the interfacing system between renewable energy resources and utility grid. High performance of the proposed technique is indicated with injection of maximum available power from renewable energy resources to the power grid, increases power factor of the utility grid, and reduces the total harmonic distortion (THD) of grid current through Matlab/Simulink under proposed operating conditions.

  • High performance power supply for synchrotron

     Montesinos Miracle, Daniel; Sorcia Navarro, Luis; Bergas Jane, Joan Gabriel; Gomis Bellmunt, Oriol
    International Exhibition & Conference for Power Electronics Intelligent Motion Power Quality
    Presentation's date: 2011-05-18
    Presentation of work at congresses

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  • Control for power conditioner based PEM fuel cell and back-up power system with supercapacitor

     Trujillo Caballero, Juan Carlos; Gomis Bellmunt, Oriol; Montesinos Miracle, Daniel; Sumper, Andreas; Sudria Andreu, Antoni; Junyent Ferré, Adrià
    International Conference on Electrical Power Quality and Utilisation
    Presentation's date: 2011-10-17
    Presentation of work at congresses

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    This paper presents a new control strategy to operate a Proton Exchange Membrane Fuel Cell (PEMFC) 1,2 kW and supercapacitor (SC) through a hybrid converter proposed. The Fuel Cell (FC) has a slow dynamic device by its nature; therefore it is recommended to have an additional auxiliary power such as the SC to improve system performance in all its applications. So has been made a study of the DC/DC converters as well as control strategies employed recently used to operate the FC and SC system. This paper shows an experimental validation of the system which has been simulated in Matlab-Simulink. For this two test have been proposed using different load demands of power and cut off FC power. Under disturbances from FC voltage and load voltage these tests are possible to verify that the system achieves an excellent output voltage (Vo) regulation and SC Voltage (VSC) control.

  • Omron: Un paso hacia adelante en la integración

     Montesinos Miracle, Daniel
    Automática e instrumentación
    Date of publication: 2011-10
    Journal article

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  • Frenado regenerativo en vehículos eléctricos mediante supercondensadores

     Montesinos Miracle, Daniel; Massot Campos, Miquel
    Automática e instrumentación
    Date of publication: 2011-11
    Journal article

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  • Gestión de baterías en los vehículos eléctricos enchufables

     Montesinos Miracle, Daniel; Heredero Peris, Daniel
    Automática e instrumentación
    Date of publication: 2011-11
    Journal article

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  • Design, analysis and control of synchrotron power supplies

     Bhasker Manthati, Udaya
    Defense's date: 2011-01-31
    Department of Electrical Engineering, Universitat Politècnica de Catalunya
    Theses

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  • Controllable and Intelligent Power Components

     Montesinos Miracle, Daniel; Galceran Arellano, Samuel; Villafafila Robles, Roberto; Sudria Andreu, Antoni
    Participation in a competitive project

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  • ICT SOLUTIONS FOR ACTIVE DISTRIBUTION NETWORKS AND CUSTOMER INTERACTION

     Bergas Jane, Joan Gabriel; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol; Sudria Andreu, Antoni
    Participation in a competitive project

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  • Multilevel converters control for renewable energy integration to the power grid

     Pouresmaeil, Edris; Gomis Bellmunt, Oriol; Montesinos Miracle, Daniel; Bergas Jane, Joan Gabriel
    Energy
    Date of publication: 2011-02
    Journal article

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  • Autonomous cascaded PV system

     Hafez, Ahmed A. A.; Montesinos Miracle, Daniel; Sudria Andreu, Antoni
    Journal of engineering sciences
    Date of publication: 2011-11-14
    Journal article

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    This paper proposes multi-level PV system; three PV generators each coupled to a buck cell. Each PV-generator-buckconverter channel is controlled such that maximum power is captured independently under different irradiation and temperature levels. The system operation under normal/abnormal conditions is investigated by thoroughly mathematical and simulation work.

  • Access to the full text
    FEM modeling of a continuous induction heating process of steel wire hardening  Open access

     Martin Segura, Guillermo; Ferrater Simon, Maria Misericordia; Montesinos Miracle, Daniel; Leach, Florina; Badan, Ioan
    Simpozionul National de Electrotehnica Teoretica
    Presentation's date: 2010-12-03
    Presentation of work at congresses

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    Hardening of steel wires requires heating the wires above their Curie temperature, temperature at which the material becomes nonmagnetic causing a sudden change in the load. This change affects to the induction heating converters and is difficult to be evaluated due to the complexity of the problem and the interdependence of the parameters. In this paper a continuous Post-Curie wire heating model using commercial FEM software is presented and evaluated for two cases.

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    New DSP based development platform for solar inverters and wind power generation  Open access

     Montesinos Miracle, Daniel; Pages Gimenez, Marc; Gomis Bellmunt, Oriol; Galceran Arellano, Samuel
    Jornada d'Innovació Docent UPC
    Presentation's date: 2010-07-02
    Presentation of work at congresses

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    Power electronics plays a key role in electrical renewable energy generation in photovoltaics, fuel cells but also in wind energy. This paper presents a new educational tool designed do motor control that can be also used in wind energy and PV. The platform uses a DC motor to emulate the wind turbine and a permanent magnet synchronous generator, in the case of the wind energy, and a single converter connected to the grid for PV.

  • Control of a multilevel modular DC/DC converter for mobile applications

     Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol; Sudria Andreu, Antoni; Rufer, Alfred
    International Exhibition & Conference for Power Electronics Intelligent Motion Power Quality
    Presentation's date: 2010-05-04
    Presentation of work at congresses

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    This paper presents the control design of a multilevel modular DC/DC converter for regenerative braking systems in mobile applications. The proposed control scheme is able to control the energy flow between supercapacitors and the DC link and equalizing the voltage in the suparcapacitor banks.

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    Simple maximum power point controller for single-phase grid-connected PV system  Open access

     Hafez, Ahmed A. A.; Montesinos Miracle, Daniel; Sudria Andreu, Antoni
    Middle East Power Systems Conference
    Presentation's date: 2010-12-19
    Presentation of work at congresses

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    This paper proposes a simple and efficient PI controller for single-phase grid-connected PV generator. The controller ensures the system operation at maximum power point (MPP) irrespective to atmospheric conditions. A detailed design of the controller and DC capacitor were carried out. An averagevalue model was developed to facilitate the design of the controller and to study the system performance under different operation conditions. The results were validated by rigorous simulation.

  • Multilevel DC/DC converter design for mobile applications

     Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol; Sudria Andreu, Antoni; Rufer, Alfred
    International Exhibition & Conference for Power Electronics Intelligent Motion Power Quality
    Presentation's date: 2010-05-05
    Presentation of work at congresses

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    This paper compares different cascaded and multilevel topologies for bidirectional in current two quadrant DC/DC converters for regenerative braking systems using supercapacitors in mobile applications. The paper shows that the multilevel buck derived topology can beneficiate from both reduced voltage across the inductor and increased frequency to reduce the inductance, even if there is a need for an input LC filter to reduce harmonic content in supercapacitors.

  • A Multi-objective control strategy for grid connection of distributed generation resources

     Pouresmaeil, Edris; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol; Bergas Jane, Joan Gabriel
    Energy
    Date of publication: 2010-12-01
    Journal article

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  • Miller effect to drive a piezoelectric actuator

     Sorcia Navarro, Luis; Rafecas Sabate, Josep; Teixidó-Casas, Miquel; Bergas Jane, Joan Gabriel; Montesinos Miracle, Daniel
    EPE journal
    Date of publication: 2010-03
    Journal article

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  • Sensorless V/f Control of Permanent Magnet Synchronous Motors

     Montesinos Miracle, Daniel; Chandana Perera, P. D.; Galceran Arellano, Samuel; Blaabjerg, Frede
    Date of publication: 2010-02-02
    Book chapter

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  • Aportaciones al control de un rectificador activo monofásico

     Rivas Guerrero, Hector
    Defense's date: 2010-07-06
    Department of Electrical Engineering, Universitat Politècnica de Catalunya
    Theses

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  • Premi extraordinari de doctorat 2007/2008 en l'àmbit de l'enginyeria industrial

     Montesinos Miracle, Daniel; Galceran Arellano, Samuel
    Award or recognition

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  • Instantaneous active and reactive current control technique of shunt active power filter based on the three-level NPC inverter

     Pouresmaeil, Edris; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol; Sudria Andreu, Antoni
    European transactions on electrical power
    Date of publication: 2010-12-07
    Journal article

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    In this paper, the synthesis and performance of a shunt active power filter (SAPF) based on instantaneous active, and reactive current components (i-d i-q) technique is presented. The proposed active filter acts as a current source, which is connected in parallel with a nonlinear load and controlled to generate the required compensation currents. The proposed control technique for SAPF aims to compensate the harmonic current contents of nonlinear loads by connection of distributed generation (DG) resources based on renewable energy sources to distribution network. This modeling is derived from the 123(abc)to αβ and αβ to dq transformation of the ac system variables. The injected currents by the SAPF to polluted grid are controlled in synchronous orthogonal dq reference frame by using of decoupled current control technique. By use of phase locked loop (PLL) in control circuit of proposed technique, the angle of positive sequence has been detected, in order to synchronize the SAPF injected currents to distribution network. The proposed control strategy has this ability to eliminate wide range of harmonic frequency draws from utility grid, and provide the compensation currents by DG resources. By this control method, replacement of distributed power generation systems as an active power filter can be possible. Three-phase three-level neutral-point-clamped (NPC) voltage source inverter (VSI) is proposed for the interfacing between renewable energy resources and polluted distribution network. The simulation results demonstrate high performances of proposed SAPF technique.

  • Máquinas eléctricas, un sector clave para el futuro

     Galceran Arellano, Samuel; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol; Sudria Andreu, Antoni
    Automática e instrumentación
    Date of publication: 2010-07-01
    Journal article

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