Power transmission apparatuses
First Claim
1. A power transmission apparatus, comprising:
- a motor/generator unit configured to drive a motor with three-phase alternating current (AC) power converted from a supplied AC power or generating electrical power to supply AC power;
a battery unit configured to store electrical energy by being charged with direct current (DC) power and supplying the DC power;
a converter configured to convert the DC power supplied from the battery unit to the AC power to supply the AC power to the motor/generator unit or an external electrical grid, including a wired electrical grid and a wireless electrical grid, based on control signals, or configured to convert the AC power supplied from the external electrical grid or the motor/generator unit to the DC power to charge the battery unit with the DC power based on the control signals;
a wireless power transceiving unit configured to receive wireless power transmitted through coils from the wireless electrical grid; and
a control unit configured to determine a frequency of power for each of the battery unit, the external electrical grid, and the motor/generator unit and is configured to control on/off timing of a bidirectional switching device included in the converter according to the frequency.
1 Assignment
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Accused Products
Abstract
A power transmission apparatus may comprise: a motor/generator unit configured to drive a motor with three-phase alternating current (AC) power converted from a supplied AC power or generating electrical power to supply AC power; a battery unit configured to charge electrical energy with direct current (DC) power and supplying the DC power by using the charged electrical energy; and/or a converter configured to convert the DC power supplied from the battery unit to the AC power to supply the AC power to the motor/generator unit or an external electrical grid based on control signals, or configured to convert the AC power supplied from the external electrical grid or the motor/generator unit to the DC power to charge the battery unit with the DC power based on the control signals.
13 Citations
11 Claims
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1. A power transmission apparatus, comprising:
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a motor/generator unit configured to drive a motor with three-phase alternating current (AC) power converted from a supplied AC power or generating electrical power to supply AC power; a battery unit configured to store electrical energy by being charged with direct current (DC) power and supplying the DC power; a converter configured to convert the DC power supplied from the battery unit to the AC power to supply the AC power to the motor/generator unit or an external electrical grid, including a wired electrical grid and a wireless electrical grid, based on control signals, or configured to convert the AC power supplied from the external electrical grid or the motor/generator unit to the DC power to charge the battery unit with the DC power based on the control signals; a wireless power transceiving unit configured to receive wireless power transmitted through coils from the wireless electrical grid; and a control unit configured to determine a frequency of power for each of the battery unit, the external electrical grid, and the motor/generator unit and is configured to control on/off timing of a bidirectional switching device included in the converter according to the frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification