APPARATUS FOR TRANSFERRING ENERGY USING POWER ELECTRONICS AND MACHINE INDUCTANCE AND METHOD OF MANUFACTURING SAME
First Claim
1. An apparatus comprising:
- a first energy storage device configured to supply electrical energy;
a bi-directional DC-to-DC converter coupled to the first energy storage device;
a DC bus coupled to the bi-directional DC-to-DC converter;
a first bi-directional inverter coupled to the DC bus;
a first electromechanical device coupled to the first bi-directional inverter;
a charge bus configured to receive a charging voltage from an external power source and supply the charging voltage to a plurality of conductors of the first electromechanical device; and
a controller configured to;
selectively control switching of the first bi-directional inverter to;
convert a DC voltage on the DC bus into an AC voltage suitable for supplying to the plurality of conductors of the first electromechanical device; and
convert the charging voltage that is supplied to the plurality of conductors of the first electromechanical device into a DC voltage suitable for supplying to the DC bus for charging the first energy storage device.
1 Assignment
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Accused Products
Abstract
A fraction inverter circuit includes a first energy storage device configured to output a DC voltage, a first bi-directional DC-to-AC voltage inverter coupled to the first energy storage device, and a first electromechanical device. The first electromechanical device includes a first plurality of conductors coupled to the first bi-directional DC-to-AC voltage inverter, a second plurality of conductors coupled together, and a plurality of windings coupled between the first plurality of conductors and the second plurality of conductors. The traction converter circuit also includes a charge bus comprising a first conductor coupled to the second plurality of conductors of the first electromechanical device, the charge bus configured to transmit a charging current to or receive a charging current from the first electromechanical device to charge the first energy storage device via the first electromechanical device and the first bi-directional DC-to-AC voltage inverter.
40 Citations
20 Claims
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1. An apparatus comprising:
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a first energy storage device configured to supply electrical energy; a bi-directional DC-to-DC converter coupled to the first energy storage device; a DC bus coupled to the bi-directional DC-to-DC converter; a first bi-directional inverter coupled to the DC bus; a first electromechanical device coupled to the first bi-directional inverter; a charge bus configured to receive a charging voltage from an external power source and supply the charging voltage to a plurality of conductors of the first electromechanical device; and a controller configured to; selectively control switching of the first bi-directional inverter to; convert a DC voltage on the DC bus into an AC voltage suitable for supplying to the plurality of conductors of the first electromechanical device; and convert the charging voltage that is supplied to the plurality of conductors of the first electromechanical device into a DC voltage suitable for supplying to the DC bus for charging the first energy storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of manufacturing comprising:
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providing a first energy storage device; coupling a bi-directional buck/boost converter to the first energy storage device; coupling a voltage bus to the bi-directional buck/boost converter; coupling a first voltage inverter to the voltage bus; coupling a plurality of conductors of a first electromechanical device to the first voltage inverter; coupling a charge bus to the first electromechanical device such that a charging voltage received by the charge bus from an external power source is supplied to the plurality of conductors of the first electromechanical device; and configuring a controller to; cause the first voltage inverter to convert a DC voltage on the voltage bus to an AC voltage suitable for supplying to the plurality of conductors of the first electromechanical device; and cause the first voltage inverter to convert the charging voltage that is supplied to the plurality of conductors of the first electromechanical device into a DC voltage suitable for supplying to the voltage bus for charging the first energy storage device. - View Dependent Claims (13, 14, 15)
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16. A system comprising:
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a machine configured to convert mechanical energy into electrical energy and configured to convert electrical energy into mechanical energy, the machine comprising a plurality of windings; a charge bus configured to receive charging energy at a charging voltage from a voltage source external to the system; a connector coupled to the charge bus and configured to transfer the charging energy from the voltage source to the charge bus; a voltage inverter coupled to the charge bus through the plurality of windings of the machine; an energy storage device configured to supply electrical energy to a voltage bus; a bi-directional voltage converter coupled between the voltage bus and the energy storage device and configured to charge the energy storage device via conversion of a voltage on the voltage bus during a charging operation; and a controller configured to; control the voltage inverter to modify the charging voltage to a second voltage suitable for supplying to the voltage bus to charge the energy storage device; and control the voltage inverter to modify a DC link voltage of the voltage bus to a third voltage suitable for supplying to the plurality of windings of the machine. - View Dependent Claims (17, 18, 19, 20)
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Specification