Patents by Inventor Mina Rahimian

Mina Rahimian 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).

  • System and method for controlling muliphase electric motors
    Patent number: 9543879
    Abstract: Controlling a multiphase electric motor by controlling the transmission of power to a first set of phases of a multiphase electric motor in accordance with a first operating configuration; detecting the presence of a shorted phase in the first set of phases while the first set of phases are being operated in accordance with the first operating configuration; and, responsive to detection of the shorted phase, adjusting control of the transmission of power to the multiphase electric motor such that power is transmitted to a second set of phases in accordance with a second operating configuration.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: January 10, 2017
    Assignees: CHEVRON U.S.A. INC., THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Hamid Toliyat, Masoud Hajiaghajani, Vivek Meenakshi Sundaram, Nwamaka Nzeocha, Yateendra Deshpande, Mina Rahimian
  • SYSTEM AND METHOD FOR CONTROLLING MULIPHASE ELECTRIC MOTORS
    Publication number: 20150270799
    Abstract: Controlling a multiphase electric motor by controlling the transmission of power to a first set of phases of a multiphase electric motor in accordance with a first operating configuration; detecting the presence of a shorted phase in the first set of phases while the first set of phases are being operated in accordance with the first operating configuration; and, responsive to detection of the shorted phase, adjusting control of the transmission of power to the multiphase electric motor such that power is transmitted to a second set of phases in accordance with a second operating configuration.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 24, 2015
    Applicants: The Texas A&M University System, Chevron U.S.A. Inc.
    Inventors: Hamid Toliyat, Masoud Hajiaghajani, Vivek Meenakshi Sundaram, Nwamaka Nzeocha, Yateendra Deshpande, Mina Rahimian
  • SYSTEM AND METHOD FOR CONTROLLING MULTIPHASE ELECTRIC MOTORS
    Publication number: 20150270747
    Abstract: A multiphase electric motor for a down-hole electrical submersible pump having a rotor having a first set of rotor voids filled or partially filled with permanent magnetic material. The electric motor having a stator with three or more stator slots, three or more stator teeth and three or more coils. Individual ones of the three or more coils are wound about at least one of the individual ones of the three or more stator teeth, and positioned such that adjacent coils are non-overlapping or partially overlapping to form a fractional slot per pole per phase winding. The electric motor having a power supply configured to provide power to the three or more phase windings formed by series or parallel combination of the three or more coils and a controller configured to control transmission of power through the three or more windings.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 24, 2015
    Applicants: THE TEXAS A&M UNIVERSITY SYSTEM, Chevron U.S.A. Inc.
    Inventors: Hamid Toliyat, Masoud Hajiaghajani, Vivek Meenakshi Sundaram, Yateendra Deshpande, Mina Rahimian, Nwamaka Nzeocha