Patents Assigned to Instituto Potosino de Investigacion Cientifica y Tecnologica (IPICYT)
  • Fixed reference frame phase-locked loop (FRF-PLL) for unbalanced line voltage conditions
    Patent number: 7720623
    Abstract: The present invention relates to a system to implement a phase-locked loop (PLL) which is able to provide an estimation of the angular frequency, and both the positive and negative sequences of the fundamental component of a three-phase signal. These sequences are provided in fixed reference frame coordinates.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: May 18, 2010
    Assignee: Instituto Potosino de Investigacion Cientifica y Tecnologica (IPICYT)
    Inventors: Gerardo Escobar Valderrama, Raymundo Enrique Torres Olguin, Misael Fransisco Martinez Montejano