Alternating Voltage Generation Apparatus And Power Output Apparatus
First Claim
1. An alternating voltage generation apparatus comprising:
- first and second 3-phase coils, first and second inverters connected to said first and second 3-phase coils, respectively, to receive a direct-current voltage from a voltage supply line, a connector configured to allow connection with an external load receiving supply of alternating voltage from the alternating voltage generation apparatus, a relay circuit connected to a first neutral point of said first 3-phase coil and a second neutral point of said second 3-phase coil, and arranged between said first and second neutral points and said connector, and a control device controlling an operation of said first and second inverters and said relay circuit, wherein said first inverter responds to a first control signal from said control device to generate a first alternating voltage having a predetermined frequency at said first neutral point, said second inverter responds to a second control signal from said control device to generate at said second neutral point a second alternating voltage having said predetermined frequency, and corresponding to a phase-inverted version of said first alternating voltage, and said relay circuit responds to a third control signal from said control device to electrically connect said first and second neutral points with said connector, and provides to said connector a third alternating voltage having said predetermined frequency, and generated across said first and second neutral points.
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Accused Products
Abstract
A power output apparatus includes first and second motor generators, first and second inverters and a relay circuit. The first and second motor generators include first and second 3-phase coils, respectively. The first inverter alters periodically the potential at a first neutral point of the 3-phase coil. The second inverter alters periodically the potential of the second neutral point of the second 3-phase coil at phase corresponding to a phase-inverted version of the potential change of the first neutral point. The relay circuit responds to a control signal from the control device to electrically connect first and second AC lines to a connector, and provides an alternating voltage generated across the first and second neutral points to the connector.
99 Citations
14 Claims
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1. An alternating voltage generation apparatus comprising:
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first and second 3-phase coils, first and second inverters connected to said first and second 3-phase coils, respectively, to receive a direct-current voltage from a voltage supply line, a connector configured to allow connection with an external load receiving supply of alternating voltage from the alternating voltage generation apparatus, a relay circuit connected to a first neutral point of said first 3-phase coil and a second neutral point of said second 3-phase coil, and arranged between said first and second neutral points and said connector, and a control device controlling an operation of said first and second inverters and said relay circuit, wherein said first inverter responds to a first control signal from said control device to generate a first alternating voltage having a predetermined frequency at said first neutral point, said second inverter responds to a second control signal from said control device to generate at said second neutral point a second alternating voltage having said predetermined frequency, and corresponding to a phase-inverted version of said first alternating voltage, and said relay circuit responds to a third control signal from said control device to electrically connect said first and second neutral points with said connector, and provides to said connector a third alternating voltage having said predetermined frequency, and generated across said first and second neutral points. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 13, 14)
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9. A power output apparatus comprising:
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a first motor generator including a first 3-phase coil as a stator coil, a second motor generator including a second 3-phase coil as a stator coil, first and second inverters connected to said first and second 3-phase coil, respectively, receiving a direct-current voltage from a voltage supply line, a connector configured to allow connection with an external load receiving supply of alternating voltage from the power output apparatus, a relay circuit connected to a first neutral point of said first 3-phase coil and a second neutral point of said second 3-phase coil, and arranged between said first and second neutral points and said connectors, and a control device controlling an operation of said first and second inverters and said relay circuit, wherein said first inverter responds to a first control signal from said control device to generate a first alternating voltage having a predetermined frequency at said first neutral point, said second inverter responds to a second control signal from said control device to generate a second alternating voltage having said predetermined frequency, and corresponding to a phase-inverted version of said first alternating voltage, at said second neutral point, and said relay circuit responds to a third control signal from said control device to electrically connect said first and second neutral points to said connector, and provide a third alternating voltage having said predetermined frequency, generated across said first and second neutral points, to said connector. - View Dependent Claims (10, 11, 12)
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Specification