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:
Feb. 23, 2016
Filed:
Aug. 22, 2012
Andrew Jeremy Roscoe, Glasgow, GB;
Stephen Jon Finney, Motherwell, GB;
Andrew Jeremy Roscoe, Glasgow, GB;
Stephen Jon Finney, Motherwell, GB;
ROLLS-ROYCE PLC, London, GB;
Abstract
A method of controlling an inverter for converting a DC input to an AC output, the method including measuring a voltage of an AC output produced by the inverter; determining a drive voltage for controlling the inverter; and if a difference in amplitude and/or phase between the drive voltage and the measured voltage exceeds a predetermined threshold, modifying the drive voltage to reduce the difference in amplitude and/or phase between the drive voltage and the measured voltage. The method may be particularly useful for controlling an inverter during 'islanded' operation with a variable load, and may therefore be useful e.g. in marine, battlefield, disaster relief and/or aviation electrical power systems.