Decentralized module-based DC data center
First Claim
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1. A distributed power system comprising:
- a DC bus configured to be coupled to at least one first external DC load;
at least one DC UPS having a first input configured to be coupled to an AC power source and to receive input AC power from the AC power source, a second input configured to be coupled to a backup power source and to receive backup DC power from the backup power source, and an output configured to be coupled to the DC bus, the at least one DC UPS configured to provide DC power to the DC bus derived from at least one of the input AC power and the backup DC power such that a DC voltage on the DC bus is maintained at a nominal level; and
at least one power module configured to be coupled to an energy storage device and to the DC bus, to monitor the DC voltage on the DC bus, to convert DC power from the energy storage device into regulated DC power, and to provide the regulated DC power to the DC bus in response to a determination that the DC voltage on the DC bus is less than a threshold level,wherein in response to a determination that the DC voltage on the DC bus is greater than the threshold level, the at least one power module is further configured to convert DC power from the DC bus into regulated DC power, and to provide the regulated DC power to the energy storage device to charge the energy storage device; and
wherein the at least one power module includes;
a first power module configured to be coupled to a first type of energy storage device and to the DC bus, to monitor the DC voltage on the DC bus, to convert DC power from the first type of energy storage device into regulated DC power, and to provide the regulated DC power to the DC bus in response to a determination that the DC voltage on the DC bus is less than a first threshold level; and
a second power module configured to be coupled to a second type of energy storage device and to the DC bus, to monitor the DC voltage on the DC bus, to convert DC power from the second type of energy storage device into regulated DC power, and to provide the regulated DC power to the DC bus in response to a determination that the DC voltage on the DC bus is less than a second threshold level.
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Abstract
According to one aspect, embodiments of the invention provide a distributed power system comprising a DC bus, at least one DC UPS configured to provide DC power to the DC bus derived from at least one of input AC power and backup DC power such that a DC voltage on the DC bus is maintained at a nominal level, and at least one power module configured to monitor the DC voltage on the DC bus, to convert DC power from an energy storage device into regulated DC power, and to provide the regulated DC power to the DC bus in response to a determination that the DC voltage on the DC bus is less than a threshold level.
12 Citations
15 Claims
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1. A distributed power system comprising:
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a DC bus configured to be coupled to at least one first external DC load; at least one DC UPS having a first input configured to be coupled to an AC power source and to receive input AC power from the AC power source, a second input configured to be coupled to a backup power source and to receive backup DC power from the backup power source, and an output configured to be coupled to the DC bus, the at least one DC UPS configured to provide DC power to the DC bus derived from at least one of the input AC power and the backup DC power such that a DC voltage on the DC bus is maintained at a nominal level; and at least one power module configured to be coupled to an energy storage device and to the DC bus, to monitor the DC voltage on the DC bus, to convert DC power from the energy storage device into regulated DC power, and to provide the regulated DC power to the DC bus in response to a determination that the DC voltage on the DC bus is less than a threshold level, wherein in response to a determination that the DC voltage on the DC bus is greater than the threshold level, the at least one power module is further configured to convert DC power from the DC bus into regulated DC power, and to provide the regulated DC power to the energy storage device to charge the energy storage device; and wherein the at least one power module includes; a first power module configured to be coupled to a first type of energy storage device and to the DC bus, to monitor the DC voltage on the DC bus, to convert DC power from the first type of energy storage device into regulated DC power, and to provide the regulated DC power to the DC bus in response to a determination that the DC voltage on the DC bus is less than a first threshold level; and a second power module configured to be coupled to a second type of energy storage device and to the DC bus, to monitor the DC voltage on the DC bus, to convert DC power from the second type of energy storage device into regulated DC power, and to provide the regulated DC power to the DC bus in response to a determination that the DC voltage on the DC bus is less than a second threshold level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling a DC data center, the method comprising acts of:
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receiving, by at least one DC UPS, input AC power from an AC power source; receiving, by the at least one DC UPS, backup DC power from a backup power source; providing, by the at least one DC UPS, DC power to a DC bus derived from at least one of the input AC power and the backup DC power such that a DC voltage on the DC bus is maintained at a nominal level; monitoring, by at least one power module coupled to at least one energy storage device, the DC voltage on the DC bus; converting, by the at least one power module in response to a determination that the DC voltage on the DC bus is less than a threshold level, DC power from the at least one energy storage device into regulated DC power; providing, by the at least one power module, the regulated DC power to the DC bus; converting, by the at least one power module in response to a determination that the DC voltage on the DC bus is greater than the threshold level, DC power from the DC bus into regulated DC power; and providing, by the at least one power module, the regulated DC power to the energy storage device to charge the energy storage device; wherein monitoring by the at least one power module includes monitoring, by a first power module coupled to a first type of energy storage device and a second power module coupled to a second type of energy storage device, the DC voltage on the DC bus; wherein converting includes converting, by the first power module in response to a determination that the DC voltage on the DC bus is less than a first threshold level, DC power from the first type of energy storage device into first regulated DC power and converting, by the second power module in response to a determination that the DC voltage on the DC bus is less than a second threshold level, DC power from the second type of energy storage device into second regulated DC power; and wherein providing includes providing, by the first power module, the first regulated DC power to the DC bus in response to a determination that the DC voltage on the DC bus is less than the first threshold level and providing, by the second power module, the second regulated DC power to the DC bus in response to a determination that the DC voltage on the DC bus is less than the second threshold level. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification