Enviaments recents

  • Models and Methods for Steady-State Analysis of Radial Multi-Energy Grids and Microgrids 

    Mesas García, Juan José; Sainz Sapera, Luis; Gordillo Torres, Jordi (2023)
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    The interconnection between different energy networks leads to interdependencies that require suitable models and methods for their analysis. This paper presents appropriate models and methods for integrated and steady-state ...
  • Digitalisation and integration of a second life EV battery pack in an industry plant towards its ecological transition 

    Díaz González, Francisco; Borrego Orpinell, Gerard; Micolau Puerto, Marc; Heredero Peris, Daniel; Capó Lliteras, Macià (Haus der Technik (HDT), 2023)
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    The GENIUS project aims at investigating the use of innovative digital tools to ease the ecological transition of industrial facilities. One of these technologies is a battery pack based on 2nd life batteries from electric ...
  • Modelling and simulation of power systems with grid-connected converters in OpenModelica 

    Figures Llerins, Lluc; Albernaz Lacerda Freitas, Vinícius; Prieto-Araujo, E.; Gomis Bellmunt, Oriol; Guironnet, Adrian; Cossart, Quentin (2022)
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    This paper analyses the capabilities of the Open-Modelica environment to perform electromagnetic transient (EMT) type simulations of power transmission systems with grid-connected converters. A power transmission system ...
  • Modelling approaches of power systems considering grid-connected converters and renewable generation dynamics 

    Girona Badia, Jaume; Albernaz Lacerda Freitas, Vinícius; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol; Kusche, Stephan; Poschke, Florian; Schulte, Horst (Institute of Electrical and Electronics Engineers (IEEE), 2022)
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    This paper presents a comparative analysis of several modelling approaches of key elements used in simulations of power systems with renewable energy sources. Different models of synchronous generators, transmission lines, ...
  • Dynamic converter control role configuration in grid of grids 

    Arévalo Soler, Josep; Nahalparvari, Mehrdad; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol; Norrga, Staffan (2023)
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    The control role of power converters conforming an HVDC link is generally static, i.e. changing the control role of the power converters is not considered in the power system operation. In this paper a lab-scaled demonstration ...
  • Multi-agent system-based microgrid protection using angular variation: An embedded approach 

    Dizioli, F. A. S.; Aquino Barra, Pedro Henrique; Menezes, Thiago Souza; Albernaz Lacerda Freitas, Vinícius; Coury, Denis V.; Souza Fernandes, Ricardo Augusto (Elsevier, 2023-07)
    Article
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    This paper presents a new approach for protecting microgrids based on multi-agent systems and using the angular variation of currents. The multi-agent system was structured using a congregation organization with three ...
  • Limitations on the virtual inertia provision from grid-forming-connected renewable energy sources 

    Girona Badia, Jaume; Albernaz Lacerda Freitas, Vinícius; Prieto-Araujo, E.; Gomis Bellmunt, Oriol (2023)
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    This paper addresses the limitations of virtual inertia provision from grid-forming interconnected renewable energy sources considering AC grid and resources dynamics. The instantaneous power that the grid-forming can ...
  • Analysis of the contribution of a battery bank to voltage regulation in a distribution system 

    Barbalho, Pedro Inácio de Nascimento e; Albernaz Lacerda Freitas, Vinícius; Coury, Denis V. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    Due to demand of higher power quality, reliability and efficiency levels, the penetration of distributed energy resources increased through the past years. Thus, several studies on the different types of electrical energy ...
  • Analysis of harmonic distortion influence in a distributed synchronous generator 

    Casimiro, Renan; Albernaz Lacerda Freitas, Vinícius; Pavanello Bataglioli, Rodrigo; Coury, Denis V. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    In conventional electrical systems, the generators are located far from the load centers. However, considering the distributed generation, the impact of harmonic distortion in the generators cannot be neglected.Thus, this ...
  • Phasor and EMT models of grid-following and grid-forming converters for short-circuit simulations 

    Albernaz Lacerda Freitas, Vinícius; Prieto Araujo, Eduardo; Cheah Mañé, Marc; Gomis Bellmunt, Oriol (2023)
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    Phasor models have been widely used in short-circuit simulations, in which system operators verify the behaviour of the grid over thousands of different contingencies. However, it is still unclear if phasor models can still ...
  • Modular impedance modeling and stability analysis of hybrid AC/DC power systems with grid-forming and grid-following converters 

    Liu, Ni; Wang, Hong; Sun, Li; Zhou, Weihua; Song, Jie; Zhou, Dangsheng; Wang, Wuhua; Chen, Zhe (Institute of Electrical and Electronics Engineers (IEEE), 2023-01-01)
    Article
    Accés obert
    The renewable energy resources integrating HVDC transmission systems, consisting of grid-following and grid-forming converters, have complex physical and control dynamic interactions. Although the impedance analysis method ...
  • Novel control approach for a hybrid grid-forming HVDC offshore transmission system 

    Tian, Shangen; Campos Gaona, David; Albernaz Lacerda Freitas, Vinícius; Torres Olguin, Raymundo Enrique; Anaya Lara, Olimpo (2020-04-03)
    Article
    Accés obert
    This article describes a hybrid topology of high-voltage direct current (HVDC) for offshore wind farms using a series connection of a voltage source converter (VSC) and six-pulse diode rectifier (6P-DR). In this topology, ...

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