UNINTERRUPTIBLE POWER SUPPLY SYSTEM AND METHOD OF OPERATING THE SAME
An uninterruptible power supply (110), UPS, is operated to selectively provide energy to a critical load (AC output load) from a grid (AC input source) and an energy storage device (130) and to transfer energy between the energy storage device and the grid. A controller (140) causes the UPS (110) to...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | An uninterruptible power supply (110), UPS, is operated to selectively provide energy to a critical load (AC output load) from a grid (AC input source) and an energy storage device (130) and to transfer energy between the energy storage device and the grid. A controller (140) causes the UPS (110) to selectively support bidirectional and unidirectional transfers of energy between the grid and the energy storage device (130) based on a state of charge, SOC, of the energy storage device (130). |
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