Apparatus for transferring energy using power electronics and machine inductance and method of manufacturing same
First Claim
1. An apparatus comprising:
- a first bi-directional DC-to-AC inverter coupled to a first DC bus;
a first electromechanical device coupled to the first bi-directional DC-to-AC inverter;
a bi-directional DC-to-DC converter coupled between the first DC bus and a second DC bus;
a first energy storage device coupled to the second DC bus;
a second bi-directional DC-to-AC inverter coupled to the first energy storage device; and
a charge bus coupled to the second bi-directional DC-to-AC inverter through at least one winding of a second electromechanical device, the charge bus configured to receive a charging voltage from an external power source and supply the charging voltage to the second bi-directional DC-to-AC inverter.
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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.
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Citations
20 Claims
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1. An apparatus comprising:
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a first bi-directional DC-to-AC inverter coupled to a first DC bus; a first electromechanical device coupled to the first bi-directional DC-to-AC inverter; a bi-directional DC-to-DC converter coupled between the first DC bus and a second DC bus; a first energy storage device coupled to the second DC bus; a second bi-directional DC-to-AC inverter coupled to the first energy storage device; and a charge bus coupled to the second bi-directional DC-to-AC inverter through at least one winding of a second electromechanical device, the charge bus configured to receive a charging voltage from an external power source and supply the charging voltage to the second bi-directional DC-to-AC inverter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of manufacturing comprising:
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providing a first energy storage device; coupling a low-voltage side of a bi-directional DC-to-DC converter to the first energy storage device; coupling a high-voltage side of the bi-directional DC-to-DC converter to a first DC bus; coupling a first bi-directional DC-to-AC inverter to the first DC bus; coupling a first electromechanical device to the first bi-directional DC-to-AC inverter; coupling a second bi-directional DC-to-AC inverter in parallel with the first energy storage device across a second DC bus; coupling a second electromechanical device to the second bi-directional DC-to-AC inverter; and coupling a charge bus to the second bi-directional DC-to-AC inverter and an external power source. - View Dependent Claims (9, 10, 11)
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12. A charging system comprising:
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an external power source; and a vehicle comprising; a first DC bus; a first bi-directional DC-to-AC voltage inverter configured to invert an AC voltage of a first electromechanical device to a first DC voltage and supply the first DC voltage to the first DC bus; a bi-directional DC-to-DC voltage converter coupled to the first DC bus and configured to convert the first DC voltage to a second DC voltage and supply the second DC voltage to a second DC bus; a second bi-directional DC-to-AC voltage inverter coupled in parallel to a first energy storage device across the second DC bus, the second bi-directional DC-to-AC voltage inverter configured to invert an AC voltage of a second electromechanical device to a DC voltage suitable for charging the first energy storage device; a charge bus configured to receive a charging voltage from the external power source and supply the charging voltage to the second electromechanical device; and a controller configured to selectively control switching of the first bi-directional DC-to-AC voltage inverter, the second bi-directional DC-to-AC voltage inverter, and the bi-directional DC-to-DC voltage converter. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification