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, anda control device controlling an operation of said first and second inverters and said relay circuit, whereinsaid 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, andsaid 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.
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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, 9, 10)
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11. 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 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 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 (12, 13, 14)
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Specification