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US 2019/0096573 A1Published application
Method for flux restoration for uninterruptible power supply startup
AssigneeS&C Electric Company
InventorsDavid Glenn Porter, William Yadusky
Life of this patent
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Abstract
Apparatuses and methods are provided for restoring flux in a startup of an uninterruptible power supply device. The uninterruptible power supply device passes voltage to loads while offline. Upon occurrence of a utility disturbance, the output voltage is adjusted while maintaining RMS voltage within a pre-specified window in order to restore flux during startup of the uninterruptible power supply device.
Claims20
A method for restoring flux for startup of an uninterruptible power supply device, comprising:
- passing voltage to loads with the uninterruptible power supply device being offline;
- detecting occurrence of a utility disturbance;
- and
- adjusting output voltage for restoring flux during startup of the uninterruptible power supply device while maintaining RMS voltage within a pre-specified window;
- wherein the adjusting of the output voltage ceases after the flux is restored to a pre-specified level.
2 more elements
An uninterruptible power supply device that restores flux during startup, comprising:
- electrical connectivity for passing voltage to loads with the uninterruptible power supply device being offline;
- a detector for detecting occurrence of a utility disturbance;
- and
- a controller for determining adjustment values of output voltages for restoring flux during startup of the uninterruptible power supply device while maintaining RMS voltage within a window;
- wherein the adjusting of the output voltage ceases after the flux is restored to a pre-specified level.
2 more elements
Dependencies are inferred from the claim text.