US 2024/0195212 A1 · Timing Determination for UPS Power Transfer

Abstract

Disclosed are devices, systems, and methods for operating a backup power source or an uninterruptible power supply (UPS) that can be used in data centers and that provide a backup power source to power the data center when utility power is compromised. A power delivery system that provides power to a primary system may include a UPS with a state timing control system that operates a bypass static switch. The state timing control system can determine when to transition the primary system from the utility power supply to the backup UPS, based on the current AC voltage conditions. The state timing control system may perform modeling to emulate the intermediate DC voltage of an actual rectifier, and particularly emulate the holdup capacitor voltage. The emulated capacitor voltage can be obtained in real time by both an input power model based on RMS utility voltage and the actual rectifier output load.

Claims20

Dependent claims

A system comprising:

a switch coupling a load to an alternating current (AC) source or a backup power source;
a rectifier coupling the load to the AC source or the backup power source;
and
a control element coupled to the switch so as to control which of the AC source or the backup power source is coupled to the load, the control element comprising an emulation module that determines when a signal should be applied to the switch such that the backup power source supplies power to the load based on a comparison of a threshold voltage to an emulated capacitor holdup voltage, the emulated capacitor holdup voltage being determined based on a root mean square (RMS) voltage value associated with the AC source.

1 more element

Dependencies are inferred from the claim text.

Timing Determination for UPS Power Transfer

Life of this patent

Timing Determination for UPS Power Transfer

Life of this patent

Abstract

Claims20