Electric vehicle fast charging station with solar energy system and its method
First Claim
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1. An EV Fast Charging Station with Solar Energy System (EVFCS-SES) comprising:
- a High Voltage (HV) DC bus;
a storage battery;
a plurality of EVFCS-SES cells, anda plurality of operation modes;
solar energy generation mode (Mode
1), solar energy generation plus direct storage battery charging mode (Mode
2), EV battery charger using solar energy mode plus solar energy generation mode (Mode
3), EV battery charger using storage battery and/or AC grid power mode (Mode
4), and a Pulse Width Modulation (PWM) rectifier battery charger mode (Mode
5),wherein, the HV DC bus is connected in parallel to the storage battery and the plurality of EVFCS-SES cells in which each cell is operated in one of the operation modes.
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Abstract
A high power EV fast charging station with solar energy system (EVFCS-SES) having a HV DC bus, several EVFCS-SES cells connecting in parallel, and a storage battery is operated as either a solar energy generation system, or a solar energy generation plus a direct storage battery charger, or as a high power EV fast charger with solar energy/storage battery/AC grid power, or a PWM rectifier battery charger to perform EV battery charging and solar energy generation for AC grid power.
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Citations
19 Claims
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1. An EV Fast Charging Station with Solar Energy System (EVFCS-SES) comprising:
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a High Voltage (HV) DC bus; a storage battery; a plurality of EVFCS-SES cells, and a plurality of operation modes;
solar energy generation mode (Mode
1), solar energy generation plus direct storage battery charging mode (Mode
2), EV battery charger using solar energy mode plus solar energy generation mode (Mode
3), EV battery charger using storage battery and/or AC grid power mode (Mode
4), and a Pulse Width Modulation (PWM) rectifier battery charger mode (Mode
5),wherein, the HV DC bus is connected in parallel to the storage battery and the plurality of EVFCS-SES cells in which each cell is operated in one of the operation modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An EV fast charging station with solar energy system (EVFCS-SES) together with a solar enemy management method comprises:
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a plurality of EVFCS-SES operated either as three phase grid-tied inverters, or as solar energy direct storage battery chargers, or High Frequency (HF) EV battery chargers, or as PWM rectifiers, or as PWM rectifier battery charger; the solar energy management method managing solar energy usage by utilizing solar energy to charge the EV battery, to store unused energy into the storage battery for later use, and to generate AC grid power when EV charger is unused and storage battery is full.
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Specification