Now showing items 1-20 of 24

    • A proportional resonant controller tuning method for grid connected power converters with LCL+trap filter 

      Zhang, Weiyi; Mir Cantarellas, Antonio; Remón, D.; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2014)
      Conference report
      Restricted access - publisher's policy
      Three-phase power converters are largely employed in power generation facilities based on renewable energy sources, and these converters commonly working in grid connection mode are frequently connected to the grid through ...
    • A unified current loop tuning approach for grid-connected photovoltaic inverters 

      Zhang, Weiyi; Remón Rodríguez, Daniel; Mir Cantarellas, Antonio; Rodríguez Cortés, Pedro (2016-09-01)
      Article
      Open Access
      High level penetration of renewable energy sources has reshaped modern electrical grids. For the future grid, distributed renewable power generation plants can be integrated in a larger scale. Control of grid-connected ...
    • Adaptive vector control based wave-to-wire model of wave energy converters 

      Mir Cantarellas, Antonio; Remón Rodríguez, Daniel; Zhang, Weiyi; Rodríguez Cortés, Pedro (2017-03-29)
      Article
      Open Access
      This study presents a complete wave-to-wire model in which a novel wave energy converter control approach based on adaptive vector control is introduced. The proposed control for maximum power absorption of the primary ...
    • Aggregated model of a distributed PV plant using the synchronous power controller 

      Remón, D.; Mir Cantarellas, Antonio; Nieto, Juan Diego; Zhang, Weiyi; Rodríguez Cortés, Pedro (2015)
      Conference report
      Open Access
      Power plants employing renewable energy sources connected to large power systems continue increasing their number and size. PV and wind farms are a clear example of this trend. They employ power electronics in order to ...
    • An active power synchronizing controller for grid-connected power converters with configurable natural droop characteristics 

      Zhang, Weiyi; Luna Alloza, Álvaro; Candela García, José Ignacio; Rocabert Delgado, Joan; Rodríguez Cortés, Pedro (2015)
      Conference report
      Restricted access - publisher's policy
      Improving the dynamics of the widely applied gridconnected power converters has been drawing a lot of interests in recent years. Since the currently installed grid-connected converters doesn’t shown inertia effect in power ...
    • Autonomous inertia-sharing control of multi-terminal VSC-HVDC grids 

      Zhang, Weiyi; Rouzbehi, Kumars; Candela García, José Ignacio; Luna Alloza, Álvaro; Gharehpetian, Gevorg B.; Rodríguez Cortés, Pedro (2016)
      Conference report
      Restricted access - publisher's policy
      Multi-terminal high-voltage dc (HVDC) grids are expected to experience a continuous expansion in the near future, and have appeared as competitive strategies in transmitting offshore wind and interconnecting multiple ac ...
    • Comparison of different power loop controllers for synchronous power controlled grid-interactive converters 

      Zhang, Weiyi; Remón, D.; Mir Cantarellas, Antonio; Luna Alloza, Álvaro; Rocabert Delgado, Joan; Candela García, José Ignacio; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      The impact caused by the large scale penetration of renewable energy sources into electrical grid has been given an increasing concern in the past decade. Multiple challenges will occur in the future when the share of the ...
    • Control of grid connected power converters with grid support functionalities 

      Zhang, Weiyi (Universitat Politècnica de Catalunya, 2017-06-01)
      Doctoral thesis
      Open Access
      The installation of power generation systems based on renewable energy sources has been increasing exponentially over the last decades. However, in spite of the well-known merits of such energy sources, the expansion of ...
    • Control of VSC-HVDC with electromechanical characteristics and unified primary strategy 

      Zhang, Weiyi; Rouzbehi, Kumars; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2016)
      Conference report
      Open Access
      High voltage dc (HVDC) systems act as the prevailed solution for transmitting offshore wind energy to onshore main grids. Control of the voltage source converters (VSC) in HVDC systems is decisive for the performance. This ...
    • Dynamics estimation and generalized tuning of stationary frame current controller for grid-tied power converters 

      Zhang, Weiyi; Remón Rodríguez, Daniel; Mir Cantarellas, Antonio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2016-12-23)
      Article
      Open Access
      The integration of AC-DC power converters to manage the connection of generation to the grid has increased exponentially over the last years. PV or wind generation plants are one of the main applications showing this trend. ...
    • Enhancement of the stability of a distribution system through synchronous PV 

      Remón Rodríguez, Daniel; Mir Cantarellas, Antonio; Zhang, Weiyi; Candela García, José Ignacio; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      Distributed renewable energy sources progressively gain importance in power systems, with which new challenges, but also new opportunities, arise. Therefore, it is necessary to analyze the interaction between this type of ...
    • Frequency support characteristics of grid-interactive power converters based on the synchronous power controller 

      Zhang, Weiyi; Remón Rodríguez, Daniel; Rodríguez Cortés, Pedro (2016-10-17)
      Article
      Open Access
      Grid-interactive converters with primary frequency control and inertia emulation have emerged and are promising for future renewable generation plants because of the contribution in power system stabilization. This paper ...
    • Frequency support properties of the synchronous power control for grid-connected converters 

      Zhang, Weiyi; Remón Rodríguez, Daniel; Rocabert Delgado, Joan; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2019-09-01)
      Article
      Restricted access - publisher's policy
      Grid-connected converters with primary frequency control and inertia emulation have emerged and are promising for future renewable generation plants because of the contribution in power system stabilization. This paper ...
    • Frequency support properties of the synchronous power control for grid-connected converters 

      Zhang, Weiyi; Remón Rodríguez, Daniel; Rocabert Delgado, Joan; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2016)
      Conference report
      Restricted access - publisher's policy
      Grid-connected converters with primary frequency control and inertia emulation have emerged and are promising for future renewable generation plants because of the contribution in power system stabilization. This paper ...
    • Generalized voltage droop control with inertia mimicry capability - step towards automation of multi-terminal HVDC grids 

      Rouzbehi, Kumars; Zhu, Jiebei; Zhang, Weiyi; Gharehpetian, Gevorg B.; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2015)
      Conference report
      Open Access
      The level of inertia in modern power systems is reducing drastically due to the increasing penetration of renewables to the power grid. In the near future the grid will face high penetration of renewable resources because ...
    • Generalized voltage droop strategy for power synchronization control in multi-terminal DC grids: an analytical approach 

      Rouzbehi, Kumars; Zhang, Weiyi; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2015)
      Conference report
      Open Access
      Vector current control based on Phase-locked loop, regardless of its popularity in control of grid-connected converters, performs under the limitation of the short-circuit capacity of the connected ac system. A previously ...
    • Grid synchronization of renewable generation systems using synchronous power controllers 

      Remón Rodríguez, Daniel; Zhang, Weiyi; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2017)
      Conference report
      Restricted access - publisher's policy
      The increasing penetration of renewable energy sources in power systems has increased the amount of generating units employing power electronics as their grid interface, instead of synchronous generators. Their different ...
    • Grid-connected converters with virtual electromechanical characteristics: experimental verification 

      Zhang, Weiyi; Remón Rodríguez, Daniel; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2017-10-05)
      Article
      Open Access
      Grid-connected power converters, which are frequently used to link renewable generation plants with the grid, are required to provide a better functionality for large scale integration of renewables. They are expected to ...
    • Multi-terminal HVDC grids with inertia mimicry capability 

      Zhang, Weiyi; Rouzbehi, Kumars; Luna Alloza, Álvaro; Gharehpetian, Gevorg B.; Rodríguez Cortés, Pedro (2016-06-23)
      Article
      Open Access
      The high-voltage multi-terminal dc (MTDC) systems are foreseen to experience an important development in the next years. Currently, they have appeared to be a prevailing technical and economical solution for harvesting ...
    • Start-up of virtual synchronous machine: methods and experimental comparison 

      Zhang, Weiyi; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2018)
      Conference report
      Open Access
      A modern grid is smarter mainly in the advance in information and communication technologies, while the power processing mechanism does not make a big difference. To make a modern grid smarter, the grid control should be ...