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:
Jun. 30, 2009
Filed:
Feb. 05, 2007
Applicants:
David R Trainer, Derby, GB;
John J a Cullen, Derby, GB;
John R Smith, Stonehaven, GB;
Inventors:
Assignee:
Rolls-Royce plc, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/14 (2006.01); G01R 31/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
Generatorsare for a distributed generation system. A control systemreceives information about network faults. In normal conditions, the control systemcontrols the field current in the field coils of the generator, to maintain generator output voltage at the rated value. At the onset of fault conditions, the control systemchanges the manner in which field current is controlled, in order to reduce the fault current put onto the network.