Browsing by Author "c487b9a2-9a79-4ba5-8a5b-3195b95fa68d"

Now showing items 1-16 of 16

    • openAccess   A multilevel modular dc-dc converter topology 

      Vidal-Albalate, Ricardo; Soto Sánchez, Diego; Andrade, Iván; Riedemann, Javier; Pesce, Cristián; Belenguer Balaguer, Enrique; Peña, Rubén; Blasco-Gimenez, Ramon Elsevier (2017)
      A multilevel modular DC-DC power conversion topology based on cascaded H-Bridge converters in a double П configuration is presented. The topology is intended to interconnect large power DC networks. A two level control ...

    • openAccess   Analysis of the Performance of MMC Under Fault Conditions in HVDC-Based Offshore Wind Farms 

      Vidal-Albalate, Ricardo; Beltran, Hector; Rolán Blanco, Alejandro; Belenguer Balaguer, Enrique; Peña, Rubén; Blasco-Gimenez, Ramon Institute of Electrical and Electronics Engineers (IEEE (2016-04)
      This paper analyzes the behavior of a modular multilevel converter-high-voltage direct-current (MMC-HVDC)-connected offshore wind power plant (WPP) during dc faults. For that purpose, detailed models of the dc cable, ...

    • openAccess   Efficient model for modular multi-level converter simulation 

      Vidal-Albalate, Ricardo; Belenguer Balaguer, Enrique; Beltran, Hector; Blasco-Gimenez, Ramon Elsevier (2016)
      Detailed models of modular multi-level converters (MMCs) are cumbersome for electromagnetic transient simulation programs because of their high number of components which involve large simulation times. In this work, the ...

    • openAccess   Embedded Real-Time Simulator for Sensorless Control of Modular Multi-Level Converters 

      Tormo, Daniel; Vidal-Albalate, Ricardo; IDKHAJINE, LAHOUCINE; Monmasson, Eric; Blasco-Gimenez, Ramon MDPI (2022-02-25)
      This paper suggests the application of an embedded real-time simulator (eRTS) in the context of voltage–sensorless control of a modular multilevel power converter (MMC). This eRTS acts as an observer and ensures digital ...

    • openAccess   Fault-tolerant strategies in MMC-based high power magnet supply for particle accelerator 

      Colmenero Moratalla, Manuel; Vidal-Albalate, Ricardo; Blanquez Delgado, Francisco R.; Blasco Giménez, Ramón Elsevier (2023)
      Many particle accelerators require to supply chains of magnets with high quality, high magnitude, cycling currents. To do this, the power converters need to provide high output voltages, reaching in some cases tens of ...

    • openAccess   Full-Bridge Modular Multilevel Converter for the Four-Quadrant Supply of High Power Magnets in Particle Accelerators 

      Colmenero, Manuel; Vidal-Albalate, Ricardo; Blánquez, Francisco R.; Blasco-Gimenez, Ramon IEEE (2022-09-05)
      Many particle accelerators require to supply chains of magnets with high quality, high magnitude, cycling currents. To do this, the power converters need to provide high output voltages, reaching in some cases tens of ...

    • openAccess   Modeling and enhanced control of hybrid full bridge–half bridge MMCs for HVDC grid studies 

      Vidal-Albalate, Ricardo; Forner, Jaume MDPI (2020-01-01)
      Modular multilevel converters (MMCs) are expected to play an important role in future high voltage direct current (HVDC) grids. Moreover, advanced MMC topologies may include various submodule (SM) types. In this sense, ...

    • openAccess   Modular Multi-level Converter Hardware-in-the-Loop Simulation on low-cost System-on-Chip devices 

      Tormo, Daniel; Vidal-Albalate, Ricardo; Idkhajine, L.; Monmasson, Eric; Blasco-Gimenez, Ramon IEEE (2018-09-21)
      System-on-Chip (SoC) devices combine powerful general purpose processors, a Field-Programmable Gate Array (FPGA) and other peripherals which make them very convenient for Hardware-in-the-Loop (HIL) simulation. One of the ...

    • openAccess   Modular multi-level DC-DC converter for high-power and high-voltage applications 

      Vidal-Albalate, Ricardo; Soto Sánchez, Diego; Belenguer Balaguer, Enrique; Peña, Rubén; Blasco-Gimenez, Ramon IEEE (2015)
      A transformer-less DC-DC Modular Multi-level Converter (DC-DC-MMC) topology based on H-bridge cells is proposed in this paper. The suggested DC-DC-MMC can be used to either control the power flow in a HVdc grid ...

    • openAccess   Multi-port Modular Multilevel Converters for the Supply of the Future Circular Collider Two-Stage Klystrons 

      Colmenero, Manuel; Vidal-Albalate, Ricardo; Blanquez, Francisco Rafael; Blasco-Gimenez, Ramon IEEE (2023-03-01)
      The new generation of high-efficiency klystrons for future particle colliders requires two high-voltage, series-connected power supplies. As an alternative to conventional klystron power converters, the use of Multi-port ...

    • openAccess   Multivariable phase-locked loop free strategy for power control of grid-connected voltage source converters 

      Díaz-Sanahuja, Carlos; Peñarrocha-Alós, Ignacio; Vidal-Albalate, Ricardo Elsevier (2022-05-17)
      A multivariable control strategy in a reference frame for grid-connected voltage source converters (VSCs) without using a phase-locked loop (PLL) is presented in this paper. First, common VSC controls such as vector current ...

    • openAccess   Power flow control using a DC-DC MMC for HVdc grid connected wind power plants 

      Vidal-Albalate, Ricardo; Belenguer Balaguer, Enrique; Pesce, Cristián; Soto Sánchez, Diego; Peña, Rubén; Blasco-Gimenez, Ramon; Riedemann, Javier IEEE (2015)
      This paper proposes the use of a transformer-less DC-DC Modular Multilevel Converter (MMC) topology, based on cascaded H-bridge converters, for power flow control in High Voltage Direct Current (HVDC) grids used to ...

    • openAccess   Protection Strategies for the Connection of Diode Rectifier-Based Wind Power Plants to HVdc Interconnectors 

      Martínez-Turégano, J.; Vidal-Albalate, Ricardo; Añó-Villalba, Salvador; Bernal-Perez, Soledad; Blasco-Gimenez, Ramon Institute of Electrical and Electronics Engineers (2020-10-05)
      The connection of diode rectifier (DR)-based wind power plants (WPPs) to existing or planned high-voltage dc (HVdc) interconnectors can lead to important savings on cost and system robustness. Since the DR station usually ...

    • openAccess   Robust local controllers design for the AC grid voltage control of an offshore wind farm 

      Díaz-Sanahuja, Carlos; Peñarrocha-Alós, Ignacio; Vidal-Albalate, Ricardo Elsevier (2021-04-14)
      In this paper we deal with the problem of voltage control of the AC grid in an offshore wind farm by means of several converters, all of them connected to the AC offshore grid at the Point of Common Coupling (PCC) through ...

    • openAccess   Sizing and Short-Circuit Capability of a Transformerless HVDC DC-DC Converter 

      Vidal-Albalate, Ricardo; Soto Sánchez, Diego; Belenguer, Enrique; Peña, Rubén; Blasco-Gimenez, Ramon Institute of Electrical and Electronics Engineers (2020-01-15)
      This work aims at optimizing the converter design of the double-T MMC DC-DC converter in terms of transmitted power per submodule and also in terms of transmitted power per silicon area, while, at the same time, providing ...

    • openAccess   Stability and Performance Analysis in Two-Parameter Controllers for Weak Grid-Connected VSCs 

      Díaz-Sanahuja, Carlos; Peñarrocha-Alós, Ignacio; Pérez, Emilio; Vidal-Albalate, Ricardo IEEE, Institute of Electrical and Electronics Engineers (2023)
      In this study, we conduct an analysis of power control in a Voltage Source Converter (VSC) connected to a Weak Grid (WG), focusing on the system's stability and performance. Our main objective is to predict the behaviour ...