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Fuel cell anode state monitoring method

A fuel cell and anode technology, which is applied in fuel cells, fuel cell control, fuel cell additives, etc., and can solve problems such as relying on algorithm structure and relying on the accuracy of physical models.

Active Publication Date: 2020-04-24
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, model-based methods rely heavily on the accuracy of physical models; high-frequency resistor-based methods require good hardware and signal processing techniques; data-based methods rely on algorithmic structures and require large amounts of data for training

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  • Fuel cell anode state monitoring method
  • Fuel cell anode state monitoring method
  • Fuel cell anode state monitoring method

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Embodiment Construction

[0051] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0052] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to"...

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Abstract

The invention relates to a fuel cell anode state monitoring method. The method comprises the steps of constructing a nonlinear dynamic model of an anode side with a blind end anode, and defining a state variable of the nonlinear dynamic model; constructing an unscented Kalman filtering observer based on the nonlinear dynamic model; acquiring cell parameters, purge valve action signals and anode runner pressure parameters through detection; and calculating an estimated value of the anode state variable of the fuel cell by utilizing the unscented Kalman filter observer according to the cell parameters, the purge valve action signals and the anode runner pressure parameters. According to the fuel cell anode state monitoring method, the characteristics of a humidity sensor and an electromagnetic valve and the characteristics of peripheral sensor are considered at the same time; in addition, state estimation is performed by using the unscented Kalman filtering method, so that real-time estimation can be realized and a great dynamic estimation effect can be realized; and only the cell parameters, the purge valve action signals and the anode runner pressure parameters need to be measured, so that the system measurement workload is reduced.

Description

technical field [0001] The present application relates to the field of fuel cells, in particular to a method for monitoring the state of fuel cell anodes. Background technique [0002] As a power source, proton exchange membrane fuel cells are the first choice for automotive applications due to their high efficiency, low noise and short cold start time. In PEM systems with blind-ended anodes, the accumulation of nitrogen and liquid water on the anode side is unavoidable, affecting system efficiency and fuel cell durability. In order to discharge the accumulated water and nitrogen in the anode flow channel, a solenoid valve, namely a purge valve (PV), is usually installed at the outlet of the blind-end anode. The purge strategy affects internal mass transfer and carbon corrosion and must be optimized. The prerequisite for optimizing the purge strategy is that the internal state of the anode side is known. Therefore, for on-board PEM systems with blind-ended anodes, algorit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04298H01M8/0438H01M8/04992G01R31/367G01R31/385
CPCG01R31/367G01R31/385H01M8/04305H01M8/04388H01M8/04992Y02E60/50
Inventor 徐梁飞李建秋贾心怡胡尊严欧阳明高郭迪江宏亮邵扬斌
Owner TSINGHUA UNIV
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