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US 11,230,202 B2Granted
Multiple vehicle charging system
AssigneeABB Schweiz AG
InventorLi Qi
Life of this patent
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Abstract
A system for charging multiple electric vehicles is provided. The system includes a first electrical converter that supplies DC power to a ring bus. The ring bus is separated into a plurality of DC buses by electrical breakers. Second converters are connected to the ring bus and convert the DC power supply to a DC voltage suitable for charging electric vehicles connected thereto.
Claims20
A vehicle charging system, comprising:
- a first electrical converter;
- a plurality of second electrical converters;
- a conductive ring connected to the first electrical converter and the plurality of second electrical converters;
- and
- a plurality of electrical breakers connecting a plurality of ring sections together such that each ring section is defined by two electrical breakers at opposite ends of the ring section, the ring sections defining at least a portion of the conductive ring;
- wherein a first one of the second electrical converters is connected to a first ring section and a second one of the second electrical converters is connected to a second ring section;
- wherein a fault in the first ring section or the first one of the second electrical converters causes the electrical breakers at opposite ends of the first ring section to open and disconnect the first one of the second electrical converters from the first electrical converter while the second one of the second electrical converters remains connected to the first electrical converter.
4 more elements
Dependencies are inferred from the claim text.