The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2009
Filed:
Jul. 20, 2007
David Glenn Loucks, Coraopolis, PA (US);
John Charles Merrison, Milwaukee, WI (US);
Rune Lennart Jonsson, Raleigh, NC (US);
Robert William Johnson, Raleigh, NC (US);
Ian Thomas Wallace, Whitefish Bay, WI (US);
Timothy Hedquist, Sugar Hill, GA (US);
David Glenn Loucks, Coraopolis, PA (US);
John Charles Merrison, Milwaukee, WI (US);
Rune Lennart Jonsson, Raleigh, NC (US);
Robert William Johnson, Raleigh, NC (US);
Ian Thomas Wallace, Whitefish Bay, WI (US);
Timothy Hedquist, Sugar Hill, GA (US);
Eaton Corporation, Cleveland, OH (US);
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.