• 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-González, Walter; 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-Pérez, 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 Arévalo, Víctor Manuel; 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-González, Walter; 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 ...

      Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.