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US 9,618,991 B1Granted
Large-scale power back-up for data centers
AssigneeGoogle Inc.
InventorsJimmy Clidaras, Cornelius B. O'Sullivan, Anand Ramesh
Life of this patent
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Abstract
A method for providing electrical power to a computer data center includes generating alternating-current power by a plurality of generators and converting the alternating current power from each of the generators to direct current power; combining the direct current power from each of the generators into a common electrical domain; and supplying the computer data center using the combined direct current power.
Claims21
A method for providing electrical power to a computer data center, the method comprising:
- identifying an interruption in power from an electric power grid;
- beginning operation of a plurality of generator sets in response to the identifying of the interruption in power;
- generating alternating-current power by the plurality of generator sets and converting the alternating current power from each of the generator sets to direct current power;
- combining the direct current power from each of the generator sets into a common electrical domain;
- switching power delivery to the computer data center from the electric power grid to the plurality of generator sets;
- and
- supplying the computer data center using the combined direct current power from the common electrical domain.
4 more elements
A system for providing electrical power to a computer data center, the system comprising:
- a plurality of electric generator sets proximate to the computer data center, each including an alternating-current-to-direct-current converter;
- a power bus arranged to receive direct current power from the generator sets and combine the received direct current power onto a common conductor;
- and
- a power distribution system in the computer data center to provide power from the electric generator sets to computer systems in the computer data center, the power distribution system comprising a common electrical bus in a single medium voltage shared electric domain that is connected to the plurality of generators by a first electric switching structure and to the electric grid by a second switching structure that is interlocked with the first electric switching structure.
1 more element
A method for providing electrical power to a computer data center, the method comprising:
- generating alternating-current power by a plurality of generator sets and converting the alternating current power from each of the generator sets to direct current power;
- combining the direct current power from each of the generator sets into a common electrical domain;
- supplying the computer data center using the combined direct current power from the common electrical domain;
- and
- inverting the direct current power into alternating current power before supplying the computer data center,
- wherein the alternating current power is provided to a common electrical bus that is part of a single medium voltage domain in the computer data center that serves more than about half of the computer data center, and wherein the computer data center has a designed electric load of more than thirty megawatts.
3 more elements
A system for providing electrical power to a computer data center, the system comprising:
- a plurality of electric generator sets proximate to the computer data center, each including an alternating-current-to-direct-current converter;
- a power bus arranged to receive direct current power from the generator sets and combine the received direct current power onto a common conductor;
- a power distribution system in the computer data center to provide power from the electric generator sets to computer systems in the computer data center;
- one or more inverters connected to convert the direct current power from the common conductor to alternating current power for distribution by the power distribution system;
- and
- a control and switching system to monitor one or more factors relating to power delivery from an electric grid, and to switch power supply to the computer data center from the electric grid to the generator sets upon identifying a determined factor relating to power delivery from the electric grid.
3 more elements
A method for providing electrical power to a computer data center, the method comprising:
- generating alternating-current power by a plurality of generator sets and converting the alternating current power from each of the generator sets to direct current power;
- combining the direct current power from each of the generator sets into a common electrical domain;
- supplying the computer data center using the combined direct current power from the common electrical domain;
- and
- inverting the direct current power into alternating current power before supplying the computer data center,
- wherein the alternating current power is provided to a common electrical bus that is part of a single medium voltage domain in the computer data center that is larger than three megawatts in size.
3 more elements
A method for providing electrical power to a computer data center, the method comprising:
- generating alternating-current power by a plurality of generator sets and converting the alternating current power from each of the generator sets to direct current power;
- combining the direct current power from each of the generator sets into a common electrical domain;
- supplying the computer data center using the combined direct current power from the common electrical domain;
- and
- inverting the direct current power into alternating current power before supplying the computer data center,
- wherein the generator sets produce electric power at medium voltage and the computer data center is served by one or more medium voltage-to-low-voltage transformers that each serve a predefined sub-portion of the data center.
3 more elements
Dependencies are inferred from the claim text.