Two-tier battery solution for data center backup
AssigneeGoogle Inc.
InventorChristopher Gregory Malone
Life of this patent
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Abstract
Methods, systems, and apparatus, including for back-up power sources. In one aspect, a method includes providing a plurality of first battery devices, each first battery device respectively electrically coupled to a respective server rack in a plurality of server racks and having a respective capacity to provide power to the respective rack for a power anomaly for up to a first duration. Providing a second battery device electrically coupled to the plurality of server racks and having a capacity to provide power to the plurality of respective server racks for a power anomaly for up to a second duration, wherein the second duration is longer than the first duration. A power anomaly is a deviation of mains power from one or more of a nominal supply voltage and frequency.
Claims20
A system, comprising:
- one or more data processing apparatus;
- and
- a memory apparatus in data communication with the one or more data processing apparatus and storing instructions executable by the one or more data processing apparatus and that upon such execution cause the one or more data processing apparatus to perform operations comprising:
- determining, for a plurality of loads and based on observed power anomalies for the loads, a power anomaly profile that describes historical statistics of observed power anomalies, wherein each load is electrically coupled to a respective first battery;
- determining, for the plurality of loads and based on the power anomaly profile, a likelihood threshold that quantifies a likelihood of any future power anomaly exceeding a given duration;
- and
- selecting a capacity of a second battery configured to be connected to the plurality of loads, the selecting being based on the historical statistics of the observed power anomalies and a power consumption statistic for the plurality of loads such that a likelihood of the second battery to provide power to the plurality of loads for a duration of any future power anomaly meets the determined likelihood threshold.
A method performed by one or more data processing apparatus, the method comprising:
- determining, for a plurality of loads and based on observed power anomalies for the loads, a power anomaly profile that describes historical statistics of observed power anomalies, wherein each load is electrically coupled to a respective first battery;
- determining, for the plurality of loads and based on the power anomaly profile, a likelihood threshold that quantifies a likelihood of any future power anomaly exceeding a given duration;
- and
- selecting a capacity of a second battery configured to be connected to the plurality of loads, the selecting being based on the historical statistics of the observed power anomalies and a power consumption statistic for the plurality of loads such that a likelihood of the second battery to provide power to the plurality of loads for a duration of any future power anomaly meets the determined likelihood threshold.
A non-transitory computer storage medium encoded with a computer program, the program comprising instructions that when executed by one or more data processing apparatus cause the data processing apparatus to perform operations comprising:
- determining, for a plurality of loads and based on observed power anomalies for the loads, a power anomaly profile that describes historical statistics of observed power anomalies, wherein each load is electrically coupled to a respective first battery;
- determining, for the plurality of loads and based on the power anomaly profile, a likelihood threshold that quantifies a likelihood of any future power anomaly exceeding a given duration;
- and
- selecting a capacity of a second battery configured to be connected to the plurality of loads, the selecting being based on the historical statistics of the observed power anomalies and a power consumption statistic for the plurality of loads such that a likelihood of the second battery to provide power to the plurality of loads for a duration of any future power anomaly meets the determined likelihood threshold.
Dependencies are inferred from the claim text.