Managing power feeds through waveform monitoring
First Claim
1. A system comprising:
- a data center configured to operate based on a supply of low-voltage power;
an electrical substation electrically coupled to the data center, the electrical substation comprising;
a transformer configured to step down high-voltage power into low-voltage power supplied to the data center, andat least one switching device configured to selectively route high-voltage power to the transformer from one of a primary utility power source and an alternate utility power source; and
a power waveform monitoring system configured to;
monitor at least a primary waveform associated with high-voltage power received from the primary utility power source for a first waveform pattern indicating potential interruption of high-voltage power received from the primary utility power source, and monitor an alternate waveform associated with the alternate utility power source for an alternate waveform pattern indicating potential interruption of high-voltage power from the alternate utility power source;
in response to identifying the first waveform pattern while monitoring the primary waveform without identifying the alternate waveform pattern while monitoring the alternate waveform, direct the switching device to switch from selectively routing high-voltage power from the primary utility power source to selectively routing high-voltage power from the alternate utility power source, such that switching occurs prior to an interruption of high voltage power from the primary utility power source, and further such that operations of the data center are uninterrupted due to the switching; and
in response to identifying the first waveform pattern and identifying the alternate waveform pattern indicating potential interruption of high-voltage power from the primary utility power source and from the alternate utility power source, determine whether the potential interruption of high-voltage power from both the primary utility power source and the alternate utility power source is associated with an interruption duration such that an uninterruptible power source can supply backup power during the potential interruption of high-voltage power from both the primary utility power source and the alternate utility power source by expending less than a predetermined fraction of uninterruptible power source capacity, and in response to determining that the potential interruption of high-voltage power from both the primary utility power source and the alternate utility power source is associated with the interruption duration, isolate the data center from both the primary utility power source and the alternate utility power source and supply low-voltage power to the data center from the uninterruptible power source.
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Accused Products
Abstract
Managing power feeds includes monitoring a waveform of a high-voltage power feed supplied to an electrical load to detect potential interruption of the high-voltage power feed and switching to another power feed to supply power to the electrical load in response to identifying the waveform pattern. Monitoring a waveform includes processing the waveform to determine if one or more waveform patterns are present in the waveform. A waveform pattern indicates, by its presence in a waveform of a power feed, a power event associated with the power feed, and some waveform patterns indicate potential interruption of the power feed. Switching to another power feed in response to determining potential interruption of the power feed based on waveform monitoring enables an uninterrupted power supply.
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Citations
17 Claims
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1. A system comprising:
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a data center configured to operate based on a supply of low-voltage power; an electrical substation electrically coupled to the data center, the electrical substation comprising; a transformer configured to step down high-voltage power into low-voltage power supplied to the data center, and at least one switching device configured to selectively route high-voltage power to the transformer from one of a primary utility power source and an alternate utility power source; and a power waveform monitoring system configured to; monitor at least a primary waveform associated with high-voltage power received from the primary utility power source for a first waveform pattern indicating potential interruption of high-voltage power received from the primary utility power source, and monitor an alternate waveform associated with the alternate utility power source for an alternate waveform pattern indicating potential interruption of high-voltage power from the alternate utility power source; in response to identifying the first waveform pattern while monitoring the primary waveform without identifying the alternate waveform pattern while monitoring the alternate waveform, direct the switching device to switch from selectively routing high-voltage power from the primary utility power source to selectively routing high-voltage power from the alternate utility power source, such that switching occurs prior to an interruption of high voltage power from the primary utility power source, and further such that operations of the data center are uninterrupted due to the switching; and in response to identifying the first waveform pattern and identifying the alternate waveform pattern indicating potential interruption of high-voltage power from the primary utility power source and from the alternate utility power source, determine whether the potential interruption of high-voltage power from both the primary utility power source and the alternate utility power source is associated with an interruption duration such that an uninterruptible power source can supply backup power during the potential interruption of high-voltage power from both the primary utility power source and the alternate utility power source by expending less than a predetermined fraction of uninterruptible power source capacity, and in response to determining that the potential interruption of high-voltage power from both the primary utility power source and the alternate utility power source is associated with the interruption duration, isolate the data center from both the primary utility power source and the alternate utility power source and supply low-voltage power to the data center from the uninterruptible power source. - View Dependent Claims (2, 3, 4)
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5. A system comprising:
at least one computing device comprising; a waveform analysis module configured to; monitor a first waveform associated with high-voltage power received from a first high-voltage power feed to identify a first waveform pattern that indicates potential interruption of high voltage power from at least the first high-voltage power feed of a plurality of high-voltage power feeds received at an electrical substation, wherein the electrical substation transforms at least one of the plurality of high-voltage power feeds to a low-voltage power output supplied to a low-voltage power load of a data center, and monitor a second waveform associated with high-voltage power received from a second high-voltage power feed of the plurality of high-voltage power feeds to identify a second waveform pattern indicating potential interruption of high-voltage power from the second high voltage power feed; and a control module configured to; in response to identification by the waveform analysis module of the first waveform pattern while monitoring the first waveform without identification of the second waveform pattern while monitoring the second waveform, direct a switching device to switch from selectively routing high-voltage power from the first high-voltage power feed to selectively routing high-voltage power from the second high-voltage power feed, such that switching occurs prior to an interruption of high-voltage power from at least the first high voltage power feed, and further such that operations of the data center are uninterrupted due to the switching; and in response to identifying the first waveform pattern and identifying the second waveform pattern indicating potential interruption of high-voltage power from the first high-voltage power feed and from the second high-voltage power feed, determining whether the potential interruption of high-voltage power from both the first high-voltage power feed and the second high-voltage power feed is associated with an interruption duration such that an uninterruptible power source can supply backup power to the low-voltage power load during the potential interruption of high-voltage power from both the first high-voltage power feed and the second high-voltage power feed by expending less than a predetermined fraction of uninterruptible power source capacity, and in response to determining that the potential interruption of high-voltage power from both the first high-voltage power feed and the second high-voltage power feed is associated with the interruption duration, isolate the low-voltage power load from both the first high-voltage power feed and the second high-voltage power feed and supply low-voltage power to the low-voltage power load from the uninterruptible power source. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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performing, by at least one computing device; determining potential interruption of a first high-voltage power feed based on monitoring a first waveform associated with the first high-voltage power feed for a first waveform pattern that indicates the potential interruption of the first high-voltage power feed; in response to the determined potential interruption of the first high voltage power feed, directing a first switching device to switch from forwarding the first high-voltage power feed to forwarding a second high-voltage power feed; determining potential interruption of both the first high-voltage power feed and the second high-voltage power feed based on monitoring both the first waveform associated with the first high-voltage power feed for the first waveform pattern and monitoring a second waveform associated with the second high-voltage power feed for a second waveform pattern that indicates a potential interruption of the second high-voltage power feed; and
in response to determining the potential interruption of both feeds, determining whether the potential interruption of both feeds is associated with an interruption duration, such that an uninterruptible power source can supply backup power during the potential interruption of both feeds by expending less than a predetermined fraction of power supply capacity associated with the uninterruptible power source; andin response to determining that the potential interruption of both feeds is associated with the interruption duration, isolating downstream low-voltage loads from both the first high-voltage power feed and the second high-voltage power feed and supplying low-voltage power to the low-voltage loads from the uninterruptible power source. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification