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US 2006/0131888 A1Published application
High frequency bus method
AssigneeSiemens Energy & Automation, Inc.
InventorsRaed Ahmad, Ekkehard Pittius
Life of this patent
Estimating the term…
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.
Claims20
A method comprising a plurality of activities, said activities comprising:
- for an off-road traction vehicle:
- from an alternator, receiving a first AC signal at an active Insulated Gate Bipolar Transistor rectifier, the active Insulated Gate Bipolar Transistor rectifier electrically coupled to a DC bus;
- and
- via an inverter electrically coupled to the DC bus, providing a second AC signal to a traction motor comprising a double stator winding.
1 more element
A method comprising:
- an electric drive system for a mining haul truck, comprising:
- at an active Insulated Gate Bipolar Transistor inverter, converting a first AC signal received from a traction motor to an unmodulated DC signal, the unmodulated DC signal adapted to be provided to a DC bus, the active Insulated Gate Bipolar Transistor rectifier electrically coupled to the DC bus;
- at an active Insulated Gate Bipolar Transistor DC chopper, converting the unmodulated DC signal from the DC bus to a modulated DC signal;
- and
- providing the modulated DC signal to a heat sink.
2 more elements
A method comprising:
- for an electric drive system for a mining machine, comprising:
- at an active Insulated Gate Bipolar Transistor rectifier, converting a first AC signal from an alternator to a DC signal, the active Insulated Gate Bipolar Transistor rectifier electrically coupled to a DC bus;
- and
- via an active Insulated Gate Bipolar Transistor inverter electrically coupled to the DC bus, generating a space vector modulated AC signal.
1 more element
Dependencies are inferred from the claim text.