Patents by Inventor Michael Ian Peter Henderson

Michael Ian Peter Henderson 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).

  • Control of electrical machines
    Patent number: 9024556
    Abstract: In an electrical machine which has time-varying or position-varying disturbances in its output, signals representing the position and values of machine-related parameters are used to solve a model of the machine to calculate the phase currents which are required to minimize the disturbances. The model is able to provide solutions in the presence of limitations of some of the operating conditions of the machine, for example the supply voltage or the error in the signal representing the position.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: May 5, 2015
    Assignee: Nidec SR Drives, Ltd.
    Inventors: Michael Ian Peter Henderson, Joseph Gerald Marcinkiewicz
  • Control of Electrical Machines
    Publication number: 20130009579
    Abstract: In an electrical machine which has time-varying or position-varying disturbances in its output, signals representing the position and values of machine-related parameters are used to solve a model of the machine to calculate the phase currents which are required to minimise the disturbances. The model is able to provide solutions in the presence of limitations of some of the operating conditions of the machine, for example the supply voltage or the error in the signal representing the position.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 10, 2013
    Applicant: NIDEC SR DRIVES, LTD.
    Inventors: Michael Ian Peter Henderson, Joseph Gerald Marcinkiewicz