Solid oxide fuel cell stack fault diagnosis method and system

A fuel cell stack and fault diagnosis system technology, applied in solid electrolyte fuel cells, fuel cells, circuits, etc., can solve problems such as low identification, poor practicability, and types of stack faults, and achieve high identification, The effect of high accuracy and high accuracy
CN107180983AActive Publication Date: 2017-09-19浙江国氢能源科技发展有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
浙江国氢能源科技发展有限公司
Publication Date
2017-09-19

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Abstract

The invention discloses a solid oxide fuel cell stack fault diagnosis method and system, wherein the method comprises: using an SOFC (solid oxide fuel cell) system model to simulate fault state and normal running state of a stack so as to obtain sample stack parameters under the fault state and normal running state of the stack; using the sample stack parameters to train a diagnosis model to obtain the strained diagnosis model; collecting real-time stack parameters, and entering in the trained diagnosis model to obtain a stack fault type. The SOFC system model is used herein to simulate the fault state and normal running state of the stack so as to obtain the stack parameters under the fault state and normal running state of the stack, and the collected stack parameters are entered in the trained diagnosis model to obtain one stack fault type. The diagnosis model herein is effective in diagnosing the normal running and fault type of the stack, the diagnostic results are highly accurate, and the method is high in practicality, identifiability and accuracy.
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Description

technical field

[0001] The invention belongs to the field of fuel cells, and more particularly relates to a fault diagnosis method and system for solid oxide fuel cell stacks. Background technique

[0002] Solid Oxide Fuel Cell (SOFC) is a new type of energy power supply technology. It uses the chemical reaction between hydrogen hydrocarbons and air to convert the chemical energy in the fuel into electrical energy. It has the advantages of high efficiency, quietness, environmental protection and pollution-free. SOFC power generation technology is currently developing rapidly, and to realize the commercialization of SOFC, it is necessary to devote ourselves to the research of fault damage phenomena, in order to fully understand it, so as to improve the reliability of SOFC independent power generation system, ensure its stability, safe operation. As the stack is the core component of an independent power generation system, the research on its fault diagnosis method becomes a ...

Claims

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