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.

Date of Patent:
Jun. 10, 2003

Filed:

Jul. 15, 2002
Applicant:
Inventors:

Thomas Gregory Hubert, Necedah, WI (US);

Douglas C. Folts, Baraboo, WI (US);

Warren Elliott Buckles, Madison, WI (US);

Assignee:

American Superconductor Corporation, Westborough, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/70 ; G05F 3/00 ; H02M 5/45 ;
U.S. Cl.
CPC ...
G05F 1/70 ; G05F 3/00 ; H02M 5/45 ;
Abstract

Power compensation is provided from a power compensation device to a utility power network carrying a nominal voltage. The power compensation device has a steady-state power delivery characteristic. The power compensation is provided by detecting a change of a predetermined magnitude in the nominal voltage on the utility power network and controlling the power compensation device to deliver, for a first period of time and in response to the detected change in the nominal voltage, reactive power to the utility power network. The power compensation device is controlled to deliver, for a second period of time following the first period of time, reactive power to the utility power network at a level that is a factor N(N>1) greater than the steady-state power delivery characteristic of the power compensation device.


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