Uninterruptible power supply system with dynamic bypass-power sharing
US11876401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2020 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Feb 10, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J3/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A UPS system includes a plurality of UPSs coupled in parallel and each having a bypass switch and a controller that is in communication with the controller of the other UPSs and including: a first unit monitoring the current flowing through a bypass line of its UPS and determining the effective value of the current strength; a second unit collecting the effective values of all of the UPSs having the bypass switch closed and defining a reference effective value corresponding to the lowest collected effective value; a third unit determining a delay for closing the bypass switch of said UPS, the delay being zero if the effective value of its UPS is equal to the reference effective value; and a fourth unit keeping the bypass switch closed if the delay is zero, or opening it for a duration corresponding to the delay before closing it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.