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. 16, 2021
Filed:
Feb. 14, 2019
Doosan Fuel Cell America, Inc., South Windsor, CT (US);
Fatih Cingoz, East Hartford, CT (US);
David Reale, Southwick, MA (US);
DOOSAN FUEL CELL AMERICA, INC., South Windsor, CT (US);
Abstract
An illustrative example fuel cell power plant includes a cell stack assembly, a single stage convertor configured to couple the cell stack assembly to a power network, and a controller that is configured to determine whether the fuel cell power plant has a DC voltage brownout condition during an islanded mode of operation. The controller dynamically adjusts the frequency droop gain of the power plant using an offset while satisfying at least three criteria of a set of criteria consisting of (i) avoiding overloading other fuel cell power plants of the power network, (ii) avoiding exceeding a maximum load step-up capability of the power network, (iii) avoiding exceeding a maximum load step-up capability of the fuel cell power plant, (iv) maintaining a system frequency within an acceptable frequency range, and (v) avoiding repeating the DC voltage brownout condition.