Multi-time sequence fuel cell output control method and system
A fuel cell and output control technology, applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of unstable output, devices that disturb the battery, adaptive adjustment, etc., and achieve the effect of stable output control
Active Publication Date: 2021-10-22
TONGJI UNIV +1
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However, in the process of output control, there is no self-adaptive adjustment of the output stability of the fuel cell according to the output state, which causes that if there is a large change in the expected output value, on the one hand, it may roughly disturb the device of the battery It is greatly affected, and in serious cases, it will be aged or damaged. On the other hand, the output will be unstable due to the influence of factors such as the operating environment.
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[0086] In some processes described in the specification and claims of the present invention and the above-mentioned drawings, a plurality of operations appearing in a specific order are contained, but it should be clearly understood that these operations may not be performed in the order in which they appear herein Execution or parallel execution, the serial numbers of the operations, such as 101, 102, etc., are only used to distinguish different operations, and the serial numbers themselves do not represent any execution order. Additionally, these processes can include more or fewer operations, and these operations can be performed sequentially or in parallel. It should be noted that the descriptions of "first" and "second" in this article are used to distinguish different messages, devices, modules, etc. are different types.
[0087] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the a...
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The invention provides a multi-time sequence fuel cell output control method and system. The scheme comprises the following steps of collecting the current running state of the fuel cell through a voltage sensor, a pressure sensor, a current sensor, a temperature sensor and a humidity sensor, performing digital filtering on the current running state of the fuel cell, filtering data exceeding a preset upper limit and a preset lower limit, and generating a filtered state quantity, performing normalization processing according to the filtered state quantity to generate a per-unit state quantity, according to the rated values of all the per-unit state quantities, conducting health state evaluation of the state quantities, and generating state health indexes, when the preset unhealthy degree is exceeded, storing all the per-unit state quantities and corresponding timestamps, and controlling the output of the fuel cell according to the current running time sequence of the fuel cell. According to the scheme, the intervention degree of different types of influence parameters on stable output is calculated by obtaining the running time sequence of the fuel cell, and the duty ratio and the frequency of the fuel cell are obtained.
Description
technical field [0001] The present invention relates to the technical field of fuel cells, and more specifically, to a multi-sequence fuel cell output control method and system. Background technique [0002] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy, also known as an electrochemical generator. It is the fourth power generation technology after hydropower, thermal power and atomic power. Since the fuel cell converts the Gibbs free energy in the chemical energy of the fuel into electrical energy through an electrochemical reaction, it is not limited by the Carnot cycle effect, so the efficiency is high; in addition, the fuel cell uses fuel and oxygen as raw materials; at the same time There are no mechanical transmission parts, so there is no noise pollution, and the emission of harmful gases is very small. [0003] Prior to this technology, conventional fuel cells can only be set to an expected output value ac...
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IPC IPC(8): H01M8/0432H01M8/0438H01M8/04492H01M8/04537H01M8/04858H01M8/04992
CPCH01M8/04992H01M8/04932H01M8/04552H01M8/0438H01M8/0432H01M8/04492H01M8/04582Y02E60/50
Inventor 姚乃元马天才张进滨
Owner TONGJI UNIV