Power systems and methods using an induction generator in cooperation with an uninterruptible power supply
US7566990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2007 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Dec 3, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power system includes a load bus configured to be connected to a power source, a generator and an uninterruptible power supply (UPS). The generator is operated as an induction generator to provide power to the load bus while providing reactive power to the load bus from the UPS. In some embodiments, prior to operating the generator as an induction generator, the generator is operated as an induction motor while the load bus is receiving power from the power source. Responsive to loss of the power source, the UPS may be used to maintain operation of the generator as an induction motor while the prime mover accelerates up to a speed sufficient to drive the generator as an induction generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.