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, 1999
Filed:
Jul. 11, 1997
Applicant:
Inventors:
Thorsten Bode, Dusseldorf, DE;
Jurgen Bernhardt, Dusseldorf, DE;
Assignee:
SMS Schloemann-Siemag AG, Dusseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318 98 ; 318 99 ;
Abstract
A load-balancing method for a multiplicity of controlled drives, especially individual electric motors of the rolls of a leveling machine for metal strip, in which all of the motors have speed and current-control circuits and are interconnected by a superordinate memory programmable computer or controller. A respective load-balancing controller, preferably of the PI type, is provided between the computer and the input to the current controller to vary the current setpoint signal supplied to the latter by the speed controller in each system.