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:
Mar. 13, 2001
Filed:
Aug. 30, 1999
Applicant:
Inventor:
Paul D. Webster, Harrogate, GB;
Assignee:
Switched Reluctance Drives Limited, Harrogate, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 5/28 ;
U.S. Cl.
CPC ...
H02P 5/28 ;
Abstract
A polyphase switched reluctance drive is supplied from a passive power factor correction circuit. The phases of the machine are switched so that there is substantially always one phase drawing current from the DC link and the current drawn from the DC link is substantially always positive. Embodiments of the invention provide a cost-effective, high-power, switched reluctance drive system that draws power at a high power factor from the supply. Corresponding methods provide similar advantages.