Now showing items 1-10 of 10

    • A novel active gate driver for improving SiC MOSFET switching trajectory 

      Paredes Camacho, Alejandro; Sala Caselles, Vicenç; Ghorbani, Hamidreza; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-01)
      Article
      Open Access
      The trend in power electronic applications is to reach higher power density and higher efficiency. Currently, the wide band-gap devices such as silicon carbide MOSFET (SiC MOSFET) are of great interest because they can ...
    • A Simple Closed-Loop Active Gate Voltage Driver for Controlling diC/dt and dvCE/dt in IGBTs 

      Ghorbani, Hamidreza; Sala Caselles, Vicenç; Paredes Camacho, Alejandro; Romeral Martínez, José Luis (2019-01-30)
      Article
      Open Access
      The increase of the switching speed in power semiconductors leads to converters with better efficiency and high power density. On the other hand, fast switching generates some consequences like overshoots and higher switching ...
    • A simple gate drive for SiC MOSFET with switching transient improvement 

      Ghorbani, Hamidreza; Sala Caselles, Vicenç; Paredes Camacho, Alejandro; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This paper presents a new active gate drive for SiC MOSFETs switching. The proposed driver is based on feedforward control method. The switch is benefited from a simple and effective analog gate driver (GD). The main ...
    • Active gate switching control of IGBT to improve efficiency in high power density converters 

      Ghorbani, Hamidreza (Universitat Politècnica de Catalunya, 2019-09-18)
      Doctoral thesis
      Open Access
      Insulated gate bipolar transistor (IGBT) power semiconductors are widely employed in industrial applications. This power switch capability in high voltage blocking and high current-carrying has expanded its use in power ...
    • Application of Posicast control method to generator excitation system 

      Ghorbani, Hamidreza; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2014)
      Conference report
      Restricted access - publisher's policy
      Application of Posicast control method to generator excitation system is presented in this paper. Presented control method is one of the simplest control design methods which can be installed in generators excitation to ...
    • Application of subsynchronous damping controller to static var compensator 

      Ghorbani, Hamidreza; Moghadam, Davoud Esmaeil; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2015)
      Conference report
      Open Access
      This paper proposes a new auxiliary Subsynchronous Damping Controller (SSDC) for the Static Var Compensator (SVC) to damp out subsynchronous oscillations in power system containing series compensated transmission lines. ...
    • Enhanced performance of SVC via using rotor speed deviation signal (RSDS) 

      Ghorbani, Hamidreza; Monadi, Mehdi; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2015)
      Conference report
      Open Access
      Transient stability enhancement through using a Static Var Compensator (SVC) and Rotor Speed Deviation Signal (RSDS) of synchronous machine are thoroughly investigated in this paper. Speed deviation signal of generator as ...
    • Impacts of wind energy in-feed on power system small signal stability 

      Banna, Hasan UI; Luna Alloza, Álvaro; Ying, Shaoqing; Ghorbani, Hamidreza; Rodríguez Cortés, Pedro (2014)
      Conference report
      Restricted access - publisher's policy
      Integration of large amount of wind energy in an interconnected power system creates concerns about secure, reliable and economical operation of the entire power system. So it becomes very necessary to investigate the ...
    • Performance analysis of conventional PSS and fuzzy controller for damping power system oscillations 

      Banna, Hasan UI; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro; Cabrera Tobar, Ana; Ghorbani, Hamidreza; Ying, Shaoqing (2014)
      Conference report
      Restricted access - publisher's policy
      Electro-mechanical oscillations are produced, in the machines of an interconnected power network, followed by a disturbance or due to high power transfer through weak tie lines. These oscillations should be damped as quickly ...
    • Posicast control: a novel approach to mitigate multi-machine power system oscillations in presence of wind farm 

      Ghorbani, Hamidreza; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      In this paper, application of Posicast control method to generator excitation system is presented. The method is one of the simplest possible control design methods that can be applied to damp the oscillations caused by ...