Patents by Inventor Jens Godbersen

Jens Godbersen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for estimating individual phase resistance of an electric motor
    Patent number: 11637517
    Abstract: The present invention relates to a method for estimating individual phase resistance of a motor by means of an adjustable speed drive (ASD) while the motor controlled by the ASD is running and/or is at standstill. The motor is an asynchronous motor or a synchronous motor. The invention also relates to an adjustable speed drive for executing a corresponding method.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: April 25, 2023
    Assignee: Danfoss Power Electronics A/S
    Inventors: Jens Godbersen, Lucian Asiminoaei
  • METHOD AND DEVICE FOR ESTIMATING INDIVIDUAL PHASE RESISTANCE OF AN ELECTRIC MOTOR
    Publication number: 20220014135
    Abstract: The present invention relates to a method for estimating individual phase resistance of a motor by means of an adjustable speed drive (ASD) while the motor controlled by the ASD is running and/or is at standstill. The motor is an asynchronous motor or a synchronous motor. The invention also relates to an adjustable speed drive for executing a corresponding method.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 13, 2022
    Inventors: Jens Godbersen, Lucian Asiminoaei
  • Method for automated measurement of the ohmic rotor resistance of an asynchronous machine
    Patent number: 6774664
    Abstract: Method of automated measurement of the ohmic rotor resistance (Rr) of an asynchronous machine (1) controlled via an inverter (8) while being acted upon by a non-rotating field, the method involving a. measuring the ohmic stator resistance (Rs), the leakage inductances (L&sgr;s, L&sgr;r) and the main inductance (Lm) of the asynchronous machine, b. leading a testing signal (Usa) being formed by a predetermined direct signal with a superimposed alternating signal corresponding approximately to the nominal slip frequency (fs) of the asynchronous machine (1), c. measuring the amplitude and the phase (&phgr;) of the phase signal (Isa) resulting from the testing signal, and d. calculating the ohmic rotor resistance (Rr) from the measured values according to a) and c).
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: August 10, 2004
    Assignee: Danfoss Drives A/S
    Inventor: Jens Godbersen
  • Method for automated measurement of the ohmic rotor resistance of an asynchronous mechine
    Publication number: 20020158658
    Abstract: Method for automated measurement of the ohmic rotor resistance (Rr) of an asynchronous machine (1) controlled via an inverter (8) while being acted upon by a non-rotating field, the method involving
    Type: Application
    Filed: February 28, 2002
    Publication date: October 31, 2002
    Inventor: Jens Godbersen