Now showing items 21-27 of 27

    • SCES Integration in Power Grids: A PBC Approach under abc, αβ0 and dq0 Reference Frames 

      Montoya O.D.; Gil-Gonzalez W.; Fwjgil@utp.edu.co; Garces A. (Institute of Electrical and Electronics Engineers Inc., 2018)
      This paper presents an integration of three-phase supercapacitor energy storage (SCES) in power grids via passivity-based control (PBC) theory under different reference frames. The SCES systems have the possibility to ...
    • Sequential quadratic programming models for solving the OPF problem in DC grids 

      Montoya O.D.; Gil-González W.; Garces A. (Elsevier Ltd, 2019)
      In this paper, we address the optimal power flow problem in dc grids (OPF-DC). Our approach is based on sequential quadratic programming which solves the problem associated with non-convexity of the model. We propose two ...
    • Small-Signal Stability in Low-Voltage DC-Grids 

      Garces A.; Herrera J.; Gil-Gonzalez W.; Montoya O. (Institute of Electrical and Electronics Engineers Inc., 2018)
      This paper presents a general methodology for small signal stability analysis in low voltage de grids considering four type of terminals, namely: constant power, constant voltage, constant current and constant impedance. ...
    • Stability Analysis of Single-Phase Low-Voltage AC Microgrids with Constant Power Terminals 

      Montoya O.D.; Garces A.; Avila-Becerril S.; Espinosa-Perez G.; Serra F.M. (Institute of Electrical and Electronics Engineers Inc., 2019)
      This express brief presents the stability analysis of single-phase microgrids (SP-MG) operating under master-slave connection with constant power terminals. The SP-MG is composed of linear elements, nonlinear loads, and ...
    • Standard passivity-based control for multi-hydro-turbine governing systems with surge tank 

      Gil-González W.; Montoya O.D.; Garces A. (Elsevier Inc., 2020)
      This paper addresses the problem of control design for hydro-turbine governing systems with surge tanks from the perspective of standard passivity-based control. The dynamic model of a synchronous machine is considered in ...
    • Voltage and Frequency Regulation on Isolated AC Three-phase Microgrids via s-DERs 

      Amin W.T.; Montoya O.D.; Garrido V.M.; Gil-González W.; Garces A. (IEEE Computer Society, 2019)
      This paper addresses the voltage regulation problem on isolated three-phase microgrids via passivity-based control (PBC) with a proportional regulator under the abc reference frame. This reference frame is employed to ...
    • Wirtinger's Calculus for the Load Flow in Power Distribution Grids 

      Garces A.; Gil-Gonzalez W.; Montoya O.D. (Institute of Electrical and Electronics Engineers Inc., 2018)
      This paper shows a Wirtinger's-Calculus based loadflow methodology for power distribution grids. This approach allows to obtain an algorithm which works directly on the complex domain maintaining some useful symmetries and ...