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:
Dec. 15, 2009

Filed:

Mar. 08, 2006
Applicants:

Michael R. Ingram, Harrison, TN (US);

Dale T. Bradshaw, Chattanooga, TN (US);

Thomas D. Geist, Knoxville, TN (US);

Haresh Kamath, Knoxville, TN (US);

Arshad Mansoor, Oak Ridge, TN (US);

Doni Nastasi, Knoxville, TN (US);

Scott Bunton, Powell, TN (US);

Inventors:

Michael R. Ingram, Harrison, TN (US);

Dale T. Bradshaw, Chattanooga, TN (US);

Thomas D. Geist, Knoxville, TN (US);

Haresh Kamath, Knoxville, TN (US);

Arshad Mansoor, Oak Ridge, TN (US);

Doni Nastasi, Knoxville, TN (US);

Scott Bunton, Powell, TN (US);

Assignee:

Tennessee Valley Authority, Knoxville, TN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 19/00 (2006.01); G01R 27/416 (2006.01); G01R 31/02 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and apparatus for automatically monitoring and controlling various parameters of individual ultracapacitor cells in a series string of such cells. These parameters are monitored, and a replacement charge current is delivered to any cell which has lost charge due to discharge either external or internal to the cell. Also, the application of this method and apparatus to energy storage systems for an electrical power transmission grid.


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