High frequency bus method
First Claim
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1. A method comprising:
- via an electric drive system for a mining machine;
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, further comprising;
at an active Insulated Gate Bipolar Transistor DC chopper, converting an unmodulated DC signal received from the DC bus to a modulated DC signal; and
providing the modulated DC signal to a heat sink.
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Abstract
Certain exemplary embodiments can include a system comprising an electric drive system for a machine. The system can include a rectifier adapted to convert AC power from an alternator to DC power. The system can include 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 include a system and method for dissipating excess energy from a machine.
97 Citations
14 Claims
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1. A method comprising:
via an electric drive system for a mining machine; 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, further comprising; at an active Insulated Gate Bipolar Transistor DC chopper, converting an unmodulated DC signal received from the DC bus to a modulated DC signal; and providing the modulated DC signal to a heat sink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
Specification