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Direct current/direct current converter for a fuel cell system

a fuel cell and converter technology, applied in the field of fuel cell systems, can solve the problems of fuel cell being subject to power outages which are unacceptable, fuel cell is typically not able to respond immediately, and the quality of power or the regulation of the direct current bus is an issue, so as to reduce the topology of system cost and increase the power conversion capability

Inactive Publication Date: 2006-05-11
CONTINENTAL AUTOMOTIVE SYST U S INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution provides efficient power regulation, enhances system efficiency, and ensures uninterrupted power supply by leveraging the battery's faster response to demand spikes and ability to absorb excess power, thereby maintaining stable DC bus voltage and optimizing energy usage.

Problems solved by technology

In an application utilizing an energy source, such as a fuel cell, the quality of power or the regulation of the direct current (DC) bus is an issue.
For example, a fuel cell is typically not able to respond immediately to peaks in demand.
A further issue in such an application is that the fuel cell may be subject to power outages which are unacceptable in an uninterruptible power supply (UPS) application.

Method used

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  • Direct current/direct current converter for a fuel cell system
  • Direct current/direct current converter for a fuel cell system
  • Direct current/direct current converter for a fuel cell system

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Embodiment Construction

[0016] In the following description, certain specific details are set forth in order to provide a through understanding of various embodiments of the invention. However, one skilled in the art will understand that the invention may be practiced without these details. In other instances, well-known structures associated with electrical circuits and circuit elements have not been shown or described in detail to avoid unnecessarily obscuring descriptions of the embodiments of the invention.

[0017] Unless the context requires otherwise, throughout the specification and claims which follow, the word “comprise” and variations thereof, such as, “comprises” and “comprising” are to be construed in an open, inclusive sense, that is as “including, but not limited to.”

[0018] Referring now in detail to an embodiment of the fuel cell systems and control methods, an example of which is illustrated in the accompanying drawings, FIGS. 1A and 1B illustrate a circuit and control scheme for a fuel cell...

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PUM

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Abstract

Fuel cell systems and control methods including a fuel cell and a second energy source, such as a battery that is adapted to supplement the fuel cell. In addition, the fuel cell system utilizes a single bipolar switching module, such as an IGBT six pack module that is configured to implement a DC / DC converter, such as a DC / DC boost converter, for both the fuel cell and the battery. The fuel cell system also makes use of a controller that is configured to control either or both of input current and output voltage of the DC / DC converter.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of co-pending U.S. utility application entitled, “DIRECT CURRENT / DIRECT CURRENT CONVERTER FOR A FUEL CELL SYSTEM,” having Ser. No. 10 / 346,561, filed Jan. 16, 2003, which is entirely incorporated herein by reference, which claims the benefit of provisional application having Ser. No. 60 / 319,701, filed Jan. 16, 2002.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present fuel cell systems and control methods relate generally to direct current-to-direct current (DC / DC) converters, and more particularly to using a DC / DC converter with both a fuel cell and a second energy source. [0004] 2. Description of the Related Art [0005] In an application utilizing an energy source, such as a fuel cell, the quality of power or the regulation of the direct current (DC) bus is an issue. For example, a fuel cell is typically not able to respond immediately to peaks in demand. A further issue in su...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01M16/00H01M8/04
CPCH01M8/0488H01M8/04888H01M8/0491H01M8/04917H01M8/04947H01M16/006Y02E60/10Y02E60/50
Inventor KAMBOURIS, CHRISTOS A.BATES, JOHN T.
Owner CONTINENTAL AUTOMOTIVE SYST U S INC
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