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:
Dec. 06, 2005
Filed:
Jul. 18, 2003
Ian Jordison, Harrogate, GB;
Marielle Ghislaine Alberte Piron, Harrogate, GB;
Peter Richard Mayes, Bradford, GB;
Peter Murray, Ossett, GB;
Michael James Turner, Leeds, GB;
Michael Leo Mcclelland, Calverley, GB;
Ian Jordison, Harrogate, GB;
Marielle Ghislaine Alberte Piron, Harrogate, GB;
Peter Richard Mayes, Bradford, GB;
Peter Murray, Ossett, GB;
Michael James Turner, Leeds, GB;
Michael Leo McClelland, Calverley, GB;
Switched Reluctance Drives Limited, Harrogate, GB;
Abstract
A switched reluctance drive, operating either as a motor or a generator, is controlled in a stable manner in the continuous current mode in the presence of supply voltage or electrical load variation. The use of a current control parameter Iin addition to the conventional on- and off-angles θ, θgives the ability to operate smoothly in the continuous current mode and to transition smoothly between operating modes. Once the phase current reaches a pre-determined level I, the phase winding may be placed in a freewheel state, thereby controlling the standing current in the phase winding and/or the output voltage.