Patent ID: 11909257
Assignee: SCHNEIDER ELECTRIC IT CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An uninterruptible power supply comprising:
a first input configured to receive AC power from an AC power source;
a second input configured to receive backup power from a backup power source;
an output configured to provide AC output power to a load; and
a plurality of power modules coupled in parallel between the first input and the output, each power module of the plurality of power modules configured to provide at least a portion of the AC output power to the output, and each power module of the plurality of power modules comprising:
a current compensator stage configured to generate a current error signal based on output current of a corresponding power module; and
a gain adjustment stage configured to:
receive a current reference signal and adjust a gain of the received current reference signal based on a measurement of the output current and a desired output current of the corresponding power module to generate a gain-adjusted current reference signal, and
adjust the current error signal based on the measurement of the output current and a desired output current of the corresponding power module by providing the gain-adjusted current reference signal to an input of the current compensator stage of at least one of the plurality of power modules.