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Power supply control apparatus and method for line connection type fuel cell system

A fuel cell system, fuel cell technology, applied in battery circuit devices, fuel cells, fuel cell applications, etc., can solve problems such as reducing the operating efficiency of fuel cell systems

Inactive Publication Date: 2007-06-20
LG ELECTRONICS INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the output voltage of the fuel cell is lower than the minimum possible voltage, the driving of the fuel cell is stopped, which reduces the operating efficiency of the fuel cell system

Method used

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  • Power supply control apparatus and method for line connection type fuel cell system
  • Power supply control apparatus and method for line connection type fuel cell system
  • Power supply control apparatus and method for line connection type fuel cell system

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Embodiment Construction

[0021] With reference in detail to the accompanying drawings, which constitute a part of this specification, and in which are shown by way of illustration specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the present invention.

[0022] Embodiments of the present invention relate to a power supply control device and method for a wire-connected fuel cell system, which can change the output voltage of a fuel cell by automatically controlling the output current of an inverter in an unmarketed fuel cell, thereby improving the efficiency of the fuel cell system. operating efficiency and stability.

[0023] Fig. 2 is a block diagram showing a power supply control device for a wire connection type fuel cell system according to the present invention. As shown in FIG. 2 , the power supply control device may include a fuel cell 10 , a power co...

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PUM

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Abstract

The present invention discloses a power supply apparatus and method for a line connection type fuel cell system. The power supply apparatus for the line connection type fuel cell system includes: a storing unit for pre-storing a normal region and a warning region according to an operating condition of a fuel cell and a correlation between an output voltage and an output current of the fuel cell; a detecting unit for detecting a common power current; and a control unit for detecting an operating point of the fuel cell, and outputting a control signal for varying the output current of the fuel cell on the basis of the position of the detected operating point and detection or non-detection of the common power current.

Description

technical field [0001] The present invention relates to fuel cells, and more particularly, to a power supply control device and method for a line connection type fuel cell system capable of improving the operating efficiency and stability of the fuel cell system. Background technique [0002] Generally speaking, a fuel cell is a device for directly converting fuel energy into electrical energy. In a fuel cell, the anode and cathode are mounted on either side of a polymer electrolyte membrane. An electrochemical oxidation reaction of hydrogen gas as a fuel occurs at the anode (or oxidation electrode), and an electrochemical reduction reaction of oxygen gas as an oxidant occurs at the cathode (or reduction electrode). That is, the fuel cell generates electrons through electrochemical oxidation and reduction reactions, and generates electrical energy through movement of the electrons. [0003] Typical fuel cells include phosphoric acid fuel cells, alkaline fuel cells, proton ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44G01R31/36H01M8/00
CPCH01M2250/402H01M8/04955H01M8/0491H02J7/0063H02J3/32Y02E60/50H01M8/04559H01M8/04589Y02B90/12Y02B90/10H02J7/00714
Inventor 金泰元高承兑
Owner LG ELECTRONICS INC
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