Patents by Inventor Raed Ahmad

Raed Ahmad 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).

  • Electric drive system with redundancy
    Patent number: 7859212
    Abstract: Circuit configurations for controlling an AC motor drive system wherein the control systems include redundancy features to compensate for possible failed system components.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: December 28, 2010
    Assignee: Direct Drive Systems, Inc.
    Inventors: Zhiguo Pan, Daniel M. Saban, Raed Ahmad
  • Electric drive system with redundancy
    Publication number: 20090218977
    Abstract: Circuit configurations for controlling an AC motor drive system wherein the control systems include redundancy features to compensate for possible failed system components.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 3, 2009
    Inventors: Zhiguo Pan, Daniel M. Saban, Raed Ahmad
  • RECONFIGURABLE POWER SYSTEM USING MULTIPLE PHASE-SET ELECTRIC MACHINES
    Publication number: 20090200809
    Abstract: A reconfigurable power system that includes a gas turbine, flywheel, a first electric machine coupled to the gas turbine, a second electric machine coupled to the flywheel, the first and second electric machines being substantially similar in configuration, a first power device for coupling power from the first electric machine to a power grid, a second power device coupled to the second electric machine for driving the flywheel and coupling power from the second electric machine to the power grid, and a switch for coupling either the power generated by the first electric machine or the second electric machine to the grid.
    Type: Application
    Filed: February 7, 2008
    Publication date: August 13, 2009
    Inventors: Daniel M. Saban, Raed Ahmad, Zhiguo Pan
  • Reconfigurable power system using multiple phase-set electric machines
    Patent number: 7573144
    Abstract: A reconfigurable power system that includes a gas turbine, flywheel, a first electric machine coupled to the gas turbine, a second electric machine coupled to the flywheel, the first and second electric machines being substantially similar in configuration, a first power device for coupling power from the first electric machine to a power grid, a second power device coupled to the second electric machine for driving the flywheel and coupling power from the second electric machine to the power grid, and a switch for coupling either the power generated by the first electric machine or the second electric machine to the grid.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: August 11, 2009
    Assignee: Direct Drive Systems, Inc.
    Inventors: Daniel M. Saban, Raed Ahmad, Zhiguo Pan
  • High frequency bus method
    Publication number: 20060131888
    Abstract: Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC power. The system can comprise an inverter adapted to receive DC power from the rectifier and provide power to a traction motor and/or auxiliary devices. Certain exemplary embodiments can comprise a system and method for dissipating excess energy from a machine.
    Type: Application
    Filed: May 27, 2005
    Publication date: June 22, 2006
    Inventors: Raed Ahmad, Ekkehard Pittius
  • Auxiliary bus method
    Publication number: 20060001318
    Abstract: Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC power. The system can comprise an inverter adapted to receive DC power from the rectifier and provide power to a traction motor and/or auxiliary devices. Certain exemplary embodiments can comprise a system and method for dissipating excess energy from a machine.
    Type: Application
    Filed: May 27, 2005
    Publication date: January 5, 2006
    Inventors: Raed Ahmad, Ekkehard Pittius
  • High frequency bus system
    Publication number: 20060001397
    Abstract: Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC power. The system can comprise an inverter adapted to receive DC power from the rectifier and provide power to a traction motor and/or auxiliary devices. Certain exemplary embodiments can comprise a system and method for dissipating excess energy from a machine.
    Type: Application
    Filed: May 27, 2005
    Publication date: January 5, 2006
    Inventors: Raed Ahmad, Ekkehard Pittius
  • Auxiliary bus system
    Publication number: 20060001319
    Abstract: Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC power. The system can comprise an inverter adapted to receive DC power from the rectifier and provide power to a traction motor and/or auxiliary devices. Certain exemplary embodiments can comprise a system and method for dissipating excess energy from a machine.
    Type: Application
    Filed: May 27, 2005
    Publication date: January 5, 2006
    Inventors: Raed Ahmad, Ekkehard Pittius
  • System and method for a cooling system
    Publication number: 20050276020
    Abstract: Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC power. The system can comprise an inverter adapted to receive DC power from the rectifier and provide power to a traction motor and/or auxiliary devices. Certain exemplary embodiments can comprise a system and method for dissipating excess energy from a machine.
    Type: Application
    Filed: May 27, 2005
    Publication date: December 15, 2005
    Inventor: Raed Ahmad