Power distribution system with rack power distribution unit
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01B-007/30
G06F-001/26
H02J-003/00
출원번호
US-0769777
(2013-02-18)
등록번호
US-9372518
(2016-06-21)
발명자
/ 주소
Morales, Osvaldo P.
출원인 / 주소
Amazon Technologies, Inc.
대리인 / 주소
Kowert, Robert C.
인용정보
피인용 횟수 :
1인용 특허 :
7
초록▼
A power distribution system for a data center includes a transformer that transforms three-phase source power to three-phase operating power. The phase-to-neutral operating voltage for each phase is at least about 260 volts. Power distribution units are coupled to the transformer. The power distribu
A power distribution system for a data center includes a transformer that transforms three-phase source power to three-phase operating power. The phase-to-neutral operating voltage for each phase is at least about 260 volts. Power distribution units are coupled to the transformer. The power distribution units supply operating power from the transformer to computer systems in the data center.
대표청구항▼
1. A data center, comprising: one or more computer systems in one or more racks in a computer room, the one or more computer systems comprising at least one power supply configured to operate at an input voltage of at least about 260 volts;one or more transformers configured to transform three-phase
1. A data center, comprising: one or more computer systems in one or more racks in a computer room, the one or more computer systems comprising at least one power supply configured to operate at an input voltage of at least about 260 volts;one or more transformers configured to transform three-phase source power to three-phase operating power comprising three phases and a neutral, at a phase-to-neutral operating voltage on each leg of at least about 260 volts; andone or more power distribution units in at least one of the one or more racks, the one or more power distribution units being coupled to at least one of the one or more transformers, wherein at least one of the one or more power distribution units is configured to supply operating power from the transformer to the at least one power supply at the phase-to-neutral operating voltage of at least about 260 volts. 2. The data center of claim 1, wherein the source power is a utility feed, wherein the one or more transformers include only one transformer coupled between the utility feed and the power distribution units. 3. The data center of claim 1, wherein at least one of the one or more transformers configured to transform three-phase source power to three-phase operating power is located outside the computer room. 4. The data center of claim 1, wherein the line-to-line voltage of the operating power to the power distribution units is about 480 volts, the phase-to-neutral voltage of the operating power to the power distribution units is about 277 volts, and the phase-to-neutral voltage of the operating power to the at least one power supply is about 277 volts. 5. The data center of claim 1, wherein the operating power is output from a single transformer stage of a power distribution system, wherein the single transformer stage receives input from a utility feed. 6. The data center of claim 1, wherein the transformer comprises secondary windings in a Y configuration. 7. The data center of claim 1, wherein the source power is output from a delta transformer. 8. The data center of claim 1, wherein at least one of the power distribution units is configured to receive the operating power from the transformer at the phase-to-neutral operating voltage on each leg of at least 260 volts, and supply operating power from the transformer to power supply units in a plurality of computer systems in the data center at the phase-to-neutral operating voltage of at least 260 volts. 9. The data center of claim 1, wherein the phase-to-neutral voltage of the operating power received in the one or more power distribution units is between about 267 volts and about 287 volts, and wherein the operating power supplied from the one or more power distribution units to the power supply units in the computing systems is between about 267 volts and about 287 volts. 10. The data center of claim 1, wherein the phase-to-neutral voltage of the operating power to the power distribution units is below the maximum input voltage specification for at least one power supply for the computer systems. 11. The data center of claim 1, wherein at least one of the transformers is located outside the computer room. 12. The data center of claim 1, wherein at least one of the transformers is an autotransformer. 13. The data center of claim 1, further comprising an autotransformer configured to drive a neutral for at least one of the power distribution units. 14. The data center of claim 1, wherein at least one of the transformers comprises a three-phase autotransformer configured to transform three-phase source power to three-phase operating power comprising three phases and a neutral, wherein at least one of the one or more power distribution units is coupled to the three-phase autotransformer, wherein at least one of the power distribution units is configured to supply operating power from the three-phase autotransformer to a plurality of computer systems in the data center. 15. A method of supplying power to computer systems in a computer room of a data center, comprising: providing, for at least one of the computer systems, one or more power supplies configured to receive input voltages of at least about 260 volts;stepping down three-phase source power from a source power feed to three-phase operating power having a phase-to-neutral voltage at least about 260 volts;transmitting the three-phase operating power at the at least 260 volts phase-to-neutral voltage to one or more power distribution units in the computer room; anddistributing operating power from the one or more power distribution units to at least one of the power supplies at the phase-to-neutral operating voltage of at least about 260 volts. 16. The method of claim 15, wherein the source power is a utility feed, wherein the three-phase source power is stepped down to three-phase operating power in a single transformer stage. 17. The method of claim 15, wherein the source power is stepped down to operating power outside of the computer room. 18. The method of claim 15, wherein the phase-to-neutral voltage of the operating power received in the one or more power distribution units is between about 267 volts and about 287 volts, and wherein the operating power supplied from the one or more power distribution units to the power supply units in the computing systems is between about 267 volts and about 287 volts. 19. The method of claim 15, wherein the phase-to-neutral voltage of the operating power to the power distribution units is below the maximum input voltage specification for at least one power supply for the computer systems.
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