Patents by Inventor Ehshan Al-Nabi

Ehshan Al-Nabi 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).

  • High dynamic control apparatus for current source converter
    Patent number: 9240733
    Abstract: Current source converters and control methods are presented for high dynamic performance by implementing a DC link current control loop parallel to one or more motor control loops, with a DC link current control command value for operating the current source rectifier being derived at least partially independent of the motor control command values, wherein certain implementations drive the current source rectifier to its maximum rated value, or the DC current command value can be set above an amount required by the current source inverter using a gain factor which can be fixed or can itself be adjusted based on one or more motor control error values for balancing as-needed dynamic performance and efficiency.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: January 19, 2016
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Semyon Royak, Manish Pande, Jingya Dai, Sang Woo Nam, Ehshan Al-Nabi
  • HIGH DYNAMIC CONTROL APPARATUS FOR CURRENT SOURCE CONVERTER
    Publication number: 20150091484
    Abstract: Current source converters and control methods are presented for high dynamic performance by implementing a DC link current control loop parallel to one or more motor control loops, with a DC link current control command value for operating the current source rectifier being derived at least partially independent of the motor control command values, wherein certain implementations drive the current source rectifier to its maximum rated value, or the DC current command value can be set above an amount required by the current source inverter using a gain factor which can be fixed or can itself be adjusted based on one or more motor control error values for balancing as-needed dynamic performance and efficiency.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 2, 2015
    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
    Inventors: Semyon Royak, Manish Pande, Jingya Dai, Sang Woo Nam, Ehshan Al-Nabi