Charging apparatus with dynamical charging power and method of operating the same
First Claim
1. A charging apparatus with dynamical charging power configured to charge an electric vehicle, the charging apparatus comprising:
- a main power conversion unit configured to receive an AC power and convert the AC power into a main output power;
a main switch unit connected to an output side of the main power conversion unit;
an auxiliary power conversion unit configured to receive an auxiliary DC power and convert the auxiliary DC power into an auxiliary output power;
an auxiliary switch unit connected between an input side of the auxiliary power conversion unit and the output side of the main power conversion unit; and
a control unit configured to control maximum output power of the main output power to be an upper-limit output power value,whereinthe control unit is configured to dynamically control the auxiliary output power according to a power difference value between a charging power value and the upper-limit output power value when the charging power value of charging the electric vehicle is greater than the upper-limit output power value, andthe main output power is DC power and the auxiliary output power is DC power.
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Abstract
A charging apparatus with dynamical charging power is configured to charge an electric vehicle. The charging apparatus includes a main power conversion unit, an auxiliary power conversion unit, and a control unit. The main power conversion unit receives an AC power and converts the AC power into a main output power. The auxiliary power conversion unit receives an auxiliary DC power and converts the auxiliary DC power into an auxiliary output power. The control unit controls maximum output power of the main output power to be an upper-limit output power value. When a charging power value of charging the electric vehicle is greater than the upper-limit output power value, the control unit dynamically controls the auxiliary output power according to a power difference value between the charging power value and the upper-limit output power value.
40 Citations
16 Claims
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1. A charging apparatus with dynamical charging power configured to charge an electric vehicle, the charging apparatus comprising:
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a main power conversion unit configured to receive an AC power and convert the AC power into a main output power; a main switch unit connected to an output side of the main power conversion unit; an auxiliary power conversion unit configured to receive an auxiliary DC power and convert the auxiliary DC power into an auxiliary output power; an auxiliary switch unit connected between an input side of the auxiliary power conversion unit and the output side of the main power conversion unit; and a control unit configured to control maximum output power of the main output power to be an upper-limit output power value, wherein the control unit is configured to dynamically control the auxiliary output power according to a power difference value between a charging power value and the upper-limit output power value when the charging power value of charging the electric vehicle is greater than the upper-limit output power value, and the main output power is DC power and the auxiliary output power is DC power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operating a charging apparatus with dynamical charging power configured to charge an electric vehicle, the method comprising:
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providing a main power conversion unit configured to receive an AC power and convert the AC power into a DC main output power; providing a main switch unit connected to an output side of the main power conversion unit; providing an auxiliary power conversion unit configured to receive an auxiliary DC power and convert the auxiliary DC power into an auxiliary DC output power; providing an auxiliary switch unit connected between an input side of the auxiliary power conversion unit and the output side of the main power conversion unit; providing a control unit configured to control maximum output power of the main output power to be an upper-limit output power value; and dynamically controlling the auxiliary DC output power according to a power difference value between a charging power value and the upper-limit output power value when the charging power value of charging the electric vehicle is greater than the upper-limit output power value, wherein the main output power and the auxiliary output power is DC power. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification