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Browsing NTNU Open by Author "Torres Olguin, Raymundo E."

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    • Analysis and evaluation of Intersystem Fault ina Hybrid AC/DC Power System and its impact on the protection System 

      Torres Olguin, Raymundo E.; Saha, Murari Mohan; Hoidalen, Hans Kristian (Journal article, 2019)
      Due to increasing environmental burden and other cost related reasons, the transmission network is undergoing major change globally. One way to utilize transmission corridors more efficiently is to have several three-phase ...
    • Effect of Including Transient Virtual Impedance in Droop-Controlled Microgrids 

      Göthner, Fredrik T. B. W.; Midtgård, Ole-Morten; Torres Olguin, Raymundo E.; D'Arco, Salvatore (Chapter, 2018)
      Droop control has shown promising results for decentralized power sharing in microgrids. However, the basic scheme can suffer from unequal reactive power sharing power due to differing line impedances between converters ...
    • Electromagnetic Oscillation Origin Location in Multiple-Inverter-Based Power Systems Using Components Impedance Frequency Responses 

      Zhou, Weihua; Torres Olguin, Raymundo E.; Zadeh, Mehdi; Bahrani, Behrooz; Wang, Yanbo; Chen, Zhe (Peer reviewed; Journal article, 2021)
      Existing impedance-based stability criterion (IBSC) for electromagnetic stability assessment of multiple-grid-connected-inverter (GCI)-based power systems suffers from several limitations. First, global stability feature ...
    • Experimental Verification of a Voltage Droop Control for Grid Integration of Offshore Wind Farms Using Multi-terminal HVDC 

      Torres Olguin, Raymundo E.; Årdal, Atle Rygg; Støylen, Hanne; Endegnanew, Atsede Gualu; Ljøkelsøy, Kjell; Tande, John Olav Giæver (Journal article; Peer reviewed, 2014)
      This paper presents an experimental verification of a voltage droop control for a multi-terminal HVDC system for the grid integration of offshore wind farms. The laboratory setup is composed by four voltage-source converter ...
    • Generator response following as a primary frequency response control strategy for VSC-HVDC connected offshore wind farms 

      McGill, Ryan; Torres Olguin, Raymundo E.; Anaya-Lara, Olimpo; Leithead, W. (Journal article; Peer reviewed, 2017)
      As penetration of renewable energy sources increases, the proportion of synchronous generators with rotating masses directly coupled to the grid decreases. In the case of wind generation, the kinetic energy stored in the ...
    • North Sea offshore network and energy storage for large scale integration of renewables 

      Spro, Ole Christian Baumann; Torres Olguin, Raymundo E.; Korpås, Magnus (Journal article; Peer reviewed, 2014)
      This review investigates different aspects of the realization of a North Sea offshore grid. The North Sea region has several characteristics that make large-scale integration of renewable energy sources attractive, such ...
    • Power Losses in Electrical Topologies for a Multi-Rotor Wind Turbine System 

      Sunde, Ingvar Hinderaker; Torres Olguin, Raymundo E.; Anaya-Lara, Olimpo (Journal article; Peer reviewed, 2019)
      Multi-rotor wind turbine systems are proposed as an additional technology to the future of wind energy, and a way of achieving wind turbines generating 20 MW or more. Research regarding the electrical connections of such ...
    • Virtual Impedance Design for Power Quality and Harmonic Sharing Improvement in Microgrids 

      Göthner, Fredrik T. B. W.; Midtgård, Ole-Morten; Torres Olguin, Raymundo E.; Roldan-Pérez, Javier (Chapter; Peer reviewed, 2019)
      One of the main challenges of decentrally operated islanded microgrids has been proper harmonic sharing for parallel connected inverters. This is largely affected by differences in the feeder impedances of the inverters. ...

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