CHARGING SYSTEM USING WOUND ROTOR SYNCHRONOUS MOTOR
First Claim
1. A charging system using a wound rotor synchronous motor (WRSM), the charging system comprising:
- an inverter configured to convert power of a battery into alternating current (AC) powers having a plurality of different phases;
a WRSM having a plurality of stator coils each receiving AC power of a different phase and a field coil forming mutual inductance with the plurality of stator coils and installed in a rotor to form a magnetic flux using power of the battery; and
a controller configured to control the connection between the battery side and the field coil side to be disconnected from each other in a charge mode in which grid power is applied to the field coil side of the WRSM.
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Accused Products
Abstract
Disclosed herein is a charging system using a wound rotor synchronous motor (WRSM), capable of reducing volume, weight, and cost of a vehicle increased due to an on-board charging circuit and increasing a battery charge capacity. The charging system using a wound rotor synchronous motor (WRSM) includes an inverter converting power of a battery into alternating current (AC) powers having a plurality of different phases, a WRSM having a plurality of stator coils each receiving AC power of a different phase and a field coil forming mutual inductance with the plurality of stator coils and installed in a rotor to form a magnetic flux using power of the battery, and a controller controlling the battery side and the field coil side are insulated from each other in a charge mode in which grid power is applied to the field coil side of the WRSM.
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Citations
10 Claims
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1. A charging system using a wound rotor synchronous motor (WRSM), the charging system comprising:
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an inverter configured to convert power of a battery into alternating current (AC) powers having a plurality of different phases; a WRSM having a plurality of stator coils each receiving AC power of a different phase and a field coil forming mutual inductance with the plurality of stator coils and installed in a rotor to form a magnetic flux using power of the battery; and a controller configured to control the connection between the battery side and the field coil side to be disconnected from each other in a charge mode in which grid power is applied to the field coil side of the WRSM. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A charging system using a wound rotor synchronous motor (WRSM), the charging system comprising:
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an inverter selectively operated to convert power of a battery to output a plurality of alternating current (AC) powers having different phases or to convert a plurality of AC powers to output power to the battery; a WRSM having a plurality of stator coils configured to receive a plurality of phases of AC power from the inverter and a field coil installed in a rotor to form mutual inductance with the plurality of stator coils; a switch unit configured to selectively electrically connect or disconnect the battery and the field coil; and a controller configured to control ON/OFF state of the switch unit, wherein, in the case of driving the WRSM, the controller is configured to adjust the switch unit to an ON state to drive the WRSM using a magnetic flux generated in the field coil by power from the battery, and in the case of charging the battery by applying grid power to the field coil, the controller is configured to adjust the switch unit to an OFF state to allow the grid power to be transferred to the stator coil from the field coil. - View Dependent Claims (10)
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Specification