GRID INTEGRATION WITH PHOTOVOLTAIC GENERATION AND ELECTRIC VEHICLE CHARGING
First Claim
1. A system for electric vehicle charging, comprising:
- an electric vehicle charger;
a transfer switch that is coupled to the electric vehicle charger and supplies current to the electric vehicle charger from one of a utility service current source and an electrical energy storage device, wherein the utility service current source supports a first charging rate and the electrical energy storage device supports a second charging rate that is greater than the first charging rate;
a combining switch that provides current from a renewable current source to at least one of the utility service current source and the electrical energy storage device; and
one or more processors to;
determine a preferred charging rate associated with an electric vehicle;
compare the preferred charging rate with the first and second charging rates; and
instruct the transfer switch to select one of the utility service current source and the electrical energy storage device based on the comparison.
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Accused Products
Abstract
System and methods for electric vehicle charging are described. A preferred charging rate associated with an electric vehicle is determined. The preferred charging rate is compared with a first charging rate associated with a utility service current source and a second charging rate associated with an electrical energy storage device. The utility service current source supports the first charging rate and the electrical energy storage device supports the second charging rate, where the second charging rate is greater than the first charging rate. A transfer switch is instructed to select one of the utility service current source and the electrical energy storage device based on the comparison. The transfer switch is coupled to an electric vehicle charger and supplies current to the electric vehicle charger via the selected current source. The electric vehicle is charged at the preferred charging rate using at least the selected current source.
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Citations
23 Claims
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1. A system for electric vehicle charging, comprising:
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an electric vehicle charger; a transfer switch that is coupled to the electric vehicle charger and supplies current to the electric vehicle charger from one of a utility service current source and an electrical energy storage device, wherein the utility service current source supports a first charging rate and the electrical energy storage device supports a second charging rate that is greater than the first charging rate; a combining switch that provides current from a renewable current source to at least one of the utility service current source and the electrical energy storage device; and one or more processors to; determine a preferred charging rate associated with an electric vehicle; compare the preferred charging rate with the first and second charging rates; and instruct the transfer switch to select one of the utility service current source and the electrical energy storage device based on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for electric vehicle charging, comprising:
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determining a preferred charging rate associated with an electric vehicle; comparing the preferred charging rate with a first charging rate associated with a utility service current source and a second charging rate associated with an electrical energy storage device, wherein the utility service current source supports the first charging rate and the electrical energy storage device supports the second charging rate, wherein the second charging rate is greater than the first charging rate; instructing a transfer switch to select one of the utility service current source and the electrical energy storage device based on the comparison, wherein the transfer switch is coupled to an electric vehicle charger and supplies current to the electric vehicle charger via the selected current source; providing current from a renewable current source to at least one of the electric vehicle charger, the electrical energy storage device, and the utility service current source using a combining switch; and charging the electric vehicle at the preferred charging rate using at least the selected current source. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification