Control method and system of fuel cell system

By constructing dynamic real-time start-stop frequency constraints and target output power ranges, the problems of frequent start-stop and prolonged suboptimal operating conditions in existing fuel cell systems are solved, thereby improving the system's performance stability and lifespan.

CN122291579APending Publication Date: 2026-06-26GUANGDONG GUOHONG HYDROGEN ENERGY TECH CO LTD
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Patent Information

Application Number
CN202610412575.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-31
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing fuel cell system control methods fail to effectively consider the performance state of the fuel cell system itself, resulting in frequent start-stop cycles and prolonged periods of suboptimal operation, which affects system performance and lifespan.

Method used

By acquiring the cumulative number of start-stop cycles, historical output power data, and real-time temperature data of the fuel cell system, a dynamic real-time start-stop cycle constraint is constructed. Combined with vehicle operating condition data, the target output power range is determined, and the fuel cell system is controlled to output power according to the target output power.

Benefits of technology

It improves the performance stability and lifespan of the fuel cell system, avoids performance degradation caused by frequent start-stop and long-term poor operating conditions, and achieves a comprehensive consideration of the fuel cell system and vehicle power demand.

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Abstract

The invention discloses a control method and system of a fuel cell system, and belongs to the technical field of fuel cell system control. The method comprises the following steps: acquiring accumulated start-stop times, historical output power data and real-time temperature data of a fuel cell system, and acquiring vehicle operation condition data of a vehicle; then, real-time start-stop frequency constraints are constructed based on the vehicle operation condition data and the real-time temperature data; if the accumulated start-stop frequency does not meet the real-time start-stop frequency constraint, executing a shutdown process on the fuel cell; if the accumulated start-stop frequency meets the real-time start-stop frequency constraint, obtaining the request power of the vehicle, determining a target output power interval according to the request power, the historical output power data and the vehicle operation condition data, and then determining the target output power of the fuel cell system according to the target output power interval and the vehicle operation condition data, the fuel cell system is controlled to output power according to the target output power, and the performance stability of the fuel cell system is improved.
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