Now showing items 1-18 of 18

    • A novel fractional proportional-resonant current controller for voltage source converters 

      Heredero Peris, Daniel; Sánchez Sánchez, Enric; Chillón Antón, Cristian; Montesinos Miracle, Daniel; Galceran Arellano, Samuel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference lecture
      Restricted access - publisher's policy
      This paper proposes a hybrid controller that combines conventional proportional-resonant controllers with the more recent application of fractional order calculus applied to the current control loop of voltage source ...
    • 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
    • Dc voltage droop control design for mmc-based multiterminal hvdc grids 

      Dadjo Tavakoli, Saman; Sánchez Sánchez, Enric; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2020-01-20)
      Article
      Open Access
      This article addresses the design of the DC voltage droop control in modular multilevel converter (MMC)-based multiterminal HVDC grids. First, two energy-based control approaches, namely classic and cross control, are ...
    • Design methodology of the primary droop voltage control for DC microgrids 

      Prieto Araujo, Eduardo; Bolboceanu, Doru; Sánchez Sánchez, Enric; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      n this article, a complete methodology to design the primary voltage droop control for a generic DC microgrid is proposed. First, a procedure to obtain a linear model of the complete system including the different converters ...
    • Disseny i implementació d'un emulador de xarxa elèctrica 

      Sánchez Sánchez, Enric (Universitat Politècnica de Catalunya, 2014-10)
      Master thesis (pre-Bologna period)
      Open Access
      En aquest projecte es presenta el disseny, la implementació i la validació experimental d'un prototip d'emulador de xarxa elèctrica. Un emulador de xarxa elèctrica té com a objectiu recrear certs escenaris sovint imprevisibles ...
    • Energy-based control schemes of Modular Multilevel Converters for HVDC applications 

      Sánchez Sánchez, Enric (Universitat Politècnica de Catalunya, 2020-12-21)
      Doctoral thesis
      Open Access
      High Voltage Direct Current (HVDC) is a power electronics -based technology that enables the transmission of large amounts of power over long distances, the integration of remote offshore wind power to the main land, and ...
    • Fractional proportional-resonant current controllers for Voltage Source Converters 

      Heredero Peris, Daniel; Chillón Antón, Cristian; Sánchez Sánchez, Enric; Montesinos Miracle, Daniel (2019-03)
      Article
      Open Access
      This paper proposes a novel fractional proportional-resonant controller, which applies fractional order calculus to the well-known proportional-resonant controllers. The focus of the study is the current control loop of ...
    • Impact analysis of energy-based control structures for grid-forming and grid-following MMC on power system dynamics based on eigenproperties indices 

      Arevalo Soler, Josep; Sánchez Sánchez, Enric; Prieto-Araujo, E.; Gomis Bellmunt, Oriol (2022-12)
      Article
      Restricted access - publisher's policy
      This paper addresses the impact of the modular multilevel converter (MMC) energy control in the system dynamics when grid-forming and grid-following control schemes are used in the same system. The MMC total energy control ...
    • Interaction analysis between MMC-based VSC-HVDC links and DFIG-based WPPs within the AC network 

      Prieto Araujo, Eduardo; Sánchez Sánchez, Enric; Galceran Arellano, Samuel; Gomis Bellmunt, Oriol (Energynautics GmbH, 2017)
      Conference report
      Restricted access - publisher's policy
      This paper deals with a detailed interaction anal- ysis between a wind power plant (WPP) including Doubly Fed Induction Generators (DFIG) and a Voltage Source Converter High Voltage Direct Current (VSC-HVDC) link based on ...
    • Interaction assessment and stability analysis of the MMC-based VSC-HVDC link 

      Dadjo Tavakoli, Saman; Prieto Araujo, Eduardo; Sánchez Sánchez, Enric; Gomis Bellmunt, Oriol (2020-04-21)
      Article
      Open Access
      This paper investigates the dynamic behavior of a modular multi-level converter (MMC)-based HVDC link. An overall state-space model is developed to identify the system critical modes, considering the dynamics of the master ...
    • Methodology for interaction identification in modular multi-level converter-based HVDC systems 

      Dadjo Tavakoli, Saman; Prieto Araujo, Eduardo; Sánchez Sánchez, Enric; Gomis-Bellmunt, Oriol (2021-07-24)
      Article
      Restricted access - publisher's policy
      This paper suggests a methodology for the identification, classification, and evaluation of various types of interactions that may occur in an HVDC link based on modular multi-level converters (MMC). The methodology ...
    • Multi-terminal HVDC voltage droop control design considering DC grid, AC grid and MMC dynamics 

      Sánchez Sánchez, Enric; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (2017)
      Conference report
      Restricted access - publisher's policy
      In this paper, a voltage droop control tuning strategy for a four-terminal high-voltage direct current (HVDC) grid is described, considering the DC multi-terminal grid, the AC grid and the modular ...
    • On the performance of the energy-controlled MMC: impact of the Internal and the DC capacitances in HVDC applications 

      Sánchez Sánchez, Enric; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (2019)
      Conference report
      Restricted access - publisher's policy
      As the power system is evolving towards a cleaner energy generation framework, the penetration of power electronic devices into the grid has become an evident fact. The number of commissioned VSC-HVDC installations is ...
    • Optimal multivariable MMC energy-based control for DC voltage regulation in HVDC applications 

      Sánchez Sánchez, Enric; Groß, Dominic; Prieto Araujo, Eduardo; Dörfler, Florian; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2020-04-01)
      Article
      Open Access
      The penetration of renewable energy resources is changing the way the power system is understood and operated. With an increasing number of power electronics devices integrated into the power system, the modular multilevel ...
    • Principles of operation of grids of DC and AC subgrids interconnected by power converters 

      Gomis Bellmunt, Oriol; Sánchez Sánchez, Enric; Arévalo Soler, Josep; Prieto Araujo, Eduardo (Institute of Electrical and Electronics Engineers (IEEE), 2020-06-15)
      Article
      Restricted access - publisher's policy
      The concept of segmented AC power systems interconnected by means of HVDC is becoming more and more significant for many cases worldwide. Such systems are already existing and will become more complex with the increasing ...
    • Stability analysis of current and voltage resonant controllers for Voltage Source Converters 

      Sánchez Sánchez, Enric; Heredero Peris, Daniel; Montesinos Miracle, Daniel (2015)
      Conference lecture
      Restricted access - publisher's policy
      This paper presents an analytical development for the Nyquist trajectory of the closed loop system of a Voltage Source Inverter with resonant control strategy. Both inner current loop and outer voltage loop are taken ...
    • Stability and interaction analysis in islanded power systems including VSC-HVDC and LCC-HVDC power converters 

      Collados Rodríguez, Carlos; Cheah Mañé, Marc; Prieto Araujo, Eduardo; Ferrer San José, Ricard; Sánchez Sánchez, Enric; Gomis Bellmunt, Oriol; Sanz, Silvia; Longás, Carmen; Cordón, Antonio; Coronado, Luis (2018)
      Conference lecture
      Restricted access - publisher's policy
      Islanded power systems are often connected to larger mainland power systems using HVDC cables. These interconnections are used to import power at lower cost compared to local generation and improve the security of supply. ...
    • The role of the internal energy in MMCs operating in grid-forming mode 

      Sánchez Sánchez, Enric; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2020-06)
      Article
      Open Access
      With an increasing number of renewable energy resources being integrated into the power system through power electronics, conventional power plants based on large synchronous machines tend to be reduced in the upcoming ...