Patent ID: 9692231
Date: 2017-06-27
CPC Classifications: G05B,G06F,H02J,Y02B,Y04S

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, 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.