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Control method and device for output power of fuel cell

A fuel cell and control method technology, which can be applied to fuel cells, fuel cell additives, circuits, etc., and can solve problems such as low energy utilization rate of fuel cells

Active Publication Date: 2014-12-10
DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a method and device for controlling the output power of fuel cells to solve the problem of low energy utilization of fuel cells in the prior art

Method used

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  • Control method and device for output power of fuel cell
  • Control method and device for output power of fuel cell
  • Control method and device for output power of fuel cell

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Embodiment Construction

[0026] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027]An embodiment of the present invention provides a fuel cell output power control device, figure 1 is a schematic diagram of a control device according to an embodiment of the present invention, such as figure 1 As shown, the control device includes a first control unit and a second control unit, the first control unit is used to control the fuel cell to generate electricity according to the first power within the first time, wherein the duration of the first time is T 1 greater than the first preset duration T min , and less than the first duration T max1 , the first preset duration T min It can be pre-set according to factors such as fuel cell gas supply mode, gas flow channel, and g...

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Abstract

The invention discloses a control method and device for the output power of a fuel cell. The control method for the output power of the fuel cell comprises the following steps of controlling the fuel cell to generate electricity in the first time according to the first power; and controlling the fuel cell to generate electricity in the second time according to the second power, wherein the starting moment of the second time is the ending moment of the first time. According to the method and the device, the problem that the energy using ratio of the fuel cell in the prior art is low is solved, further the working efficiency of the fuel cell is increased, and the service life of the fuel cell is prolonged.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a method and device for controlling output power of fuel cells. Background technique [0002] A fuel cell is an environmentally friendly, high-efficiency, long-life power generation device. Taking Proton Exchange Membrane Fuel Cell (PEMFC for short) as an example, fuel gas enters from the anode side, hydrogen atoms lose electrons at the anode and become protons, protons pass through the proton exchange membrane to the cathode, and electrons pass through the external circuit at the same time It also reaches the cathode, where protons, electrons and oxygen combine to form water. The fuel cell converts chemical energy into electrical energy in a non-combustion manner, and its direct power generation efficiency can be as high as 45% because it is not limited by the Carnot cycle. With the battery stack as the core power generation device, the fuel cell system integrates power management, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04H01M8/04858
CPCY02E60/50
Inventor 高建龙张伟明高玉陶诗涌练勇
Owner DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
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