AC Link Bidirectional DC-DC Converter, Hybrid Power Supply System Using the Same and Hybrid Vehicle
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Abstract
In an AC link type boosting device, DC terminals of two voltage inverters are connected each other in series in additive polarity and plural AC terminals of each of the voltage inverters are connected to a transformer. The two voltage type inverters are AC linked to each other via the transformer. An external voltage applied between the DC terminals of the AC link type booster is divided by the voltage-type inverters.
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Citations
73 Claims
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1-13. -13. (canceled)
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14. An AC link bidirectional DC-DC converter having two voltage inverters whose DC terminals are connected each other in series in additive polarity, a plurality of AC terminals of each of the voltage inverters being connected to a transformer, and the two voltage inverters being AC-linked to each other via the transformer, the AC link bidirectional DC-DC converter being characterized in that:
an external voltage applied between the DC terminals of the AC link bidirectional DC-DC converter is divided by the voltage inverters. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49)
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46. The AC link bidirectional DC-DC converter according to claim 341, characterized in that the control of the voltage inverters involves frequency control.
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50. A hybrid power supply system, in which a main power supply of an engine electric generator is connected in parallel via an AC link bidirectional DC-DC converter to an energy accumulation device while polarities thereof being matched, and electric power from the main power supply drives an electrically driven device composed of an inverter and a motor, the hybrid power supply system being characterized in that:
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the AC link bidirectional DC-DC converter has two voltage inverters whose DC terminals are connected each other in series in additive polarity, a plurality of AC terminals of each of the voltage inverters being connected to a transformer, the two voltage inverters being AC-linked to each other via the transformer; the energy accumulation device is connected in parallel between serial terminals of the voltage inverter on a negative DC terminal side of the AC link bidirectional DC-DC converter; and a voltage of the main power supply applied between high voltage side DC terminals of the AC link bidirectional DC-DC converter is divided by the voltage inverters. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73)
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Specification