Patent ID: 11942818
Assignee: SCHNEIDER ELECTRIC IT CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A non-transitory computer-readable medium storing thereon sequences of computer-executable instructions for controlling an uninterruptible power supply including a first output connection configured to be coupled to a main power source providing main power, a second output connection configured to be coupled to at least one load, a first power converter, a second power converter, and at least one switch coupled to the first power converter and the second power converter, the sequences of computer-executable instructions including instructions that instruct at least one processor to:
control the at least one switch to connect the first power converter and the second power converter to the first output connection and the second output connection,
control the at least one switch to disconnect the first power converter from the second output connection responsive to detecting a fault in the main power,
control, responsive to detecting the fault in the main power, the first power converter to provide power to the first output connection during an interim period, wherein the interim period lasts for a predetermined amount of time beginning when the fault in the main power is detected,
control the at least one switch to disconnect the second power converter from the first output connection responsive to detecting the fault in the main power,
determine whether the fault in the main power has ended within the predetermined amount of time, and
control, after the interim period and responsive to determining that the fault in the main power has not ended within the predetermined amount of time, the first power converter to provide power to the second output connection in parallel with the second power converter.