Multiple UPS system having multi-way power tie system and intelligent power sharing control
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United States of America Patent
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Aug 30, 2016
Grant Date -
Jun 12, 2014
app pub date -
Nov 13, 2013
filing date -
Dec 7, 2012
priority date (Note) -
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Abstract
A multiple UPS system includes a plurality of multi-module UPS subsystems coupled to a power tie cabinet, each multi-module UPS subsystem having a plurality of UPS modules. The power tie cabinet includes one or more controllers, collectively referred to as PTC (power tie cabinet) controls. The PTC controls periodically determine a power error message for each of the multi-module UPS subsystems and pass it to the respective multi-module UPS subsystem. A controller of the multi-module UPS subsystem uses the power error message to determine error data that is provided to a power average control loop used in control of power sharing among the UPS modules of the multi-module UPS subsystem.
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