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Fuel cell system and control method thereof

A technology of a fuel cell system and a control method, which is applied in the fields of fuel cell control, fuel cells, fuel cell additives, etc., can solve problems such as unreasonable structure, unreasonable shutdown control process, and impact on the service life of fuel cells.

Pending Publication Date: 2022-04-08
国家电投集团氢能科技发展有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a fuel cell system and its control method to solve the problems in the related art that the structure of the fuel cell system is unreasonable and the shutdown control process affects the service life of the fuel cell

Method used

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  • Fuel cell system and control method thereof
  • Fuel cell system and control method thereof
  • Fuel cell system and control method thereof

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include...

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Abstract

The invention provides a fuel cell system and a control method thereof, and the fuel cell system comprises an electric pile which comprises a cathode cavity and an anode cavity; the air system comprises a first air inlet channel and a first exhaust channel, the first air inlet channel is communicated with the air inlet of the cathode cavity, and the first exhaust channel is communicated with the air outlet of the cathode cavity; the air system comprises a first valve arranged at the air inlet of the cathode cavity, a second valve arranged at the air outlet of the cathode cavity and a tail exhaust valve arranged at the downstream of the second valve; and the hydrogen system comprises a second gas inlet channel and a second gas outlet channel. According to the technical scheme, the problem that the service life of the fuel cell is affected due to the unreasonable structure of the fuel cell system and the unreasonable shutdown control process in the prior art can be effectively solved.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a fuel cell system and a control method thereof. Background technique [0002] In the related art, the design of the fuel cell system usually does not take into account the change of the gas composition inside the cathode cavity and the anode cavity of the fuel cell during the long-term shutdown process, and does not make any mechanical devices for the cathode cavity And control, resulting in the long-term shutdown process, the air in the environment can continuously enter the cathode cavity, thereby consuming the hydrogen originally in the anode cavity. As time changes, after the air concentration gradient in the cathode is higher than that in the anode, the hydrogen in the anode cavity will permeate into the cathode cavity, resulting in a lack of hydrogen inside the anode cavity during the next startup process. As a result, side reactions occur in the catalyst layer, corroding the ca...

Claims

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Application Information

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IPC IPC(8): H01M8/04298H01M8/04082H01M8/04746H01M8/04992H01M8/24
CPCY02E60/50
Inventor 王俊宇陈平王雪娥王黎明周少东陈璐任建宇韩荘光
Owner 国家电投集团氢能科技发展有限公司
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