Structural Design, Matching, and Analysis of Air Supply Devices for Multi‐Stack Fuel Cell Systems

Xie, Zhengchun; Zhou, Su; Gao, Jian-Hua; Zhang, Gang; Shen, Wen

doi:10.1002/ente.202201331

Cited by 4 publications

(1 citation statement)

References 38 publications

(45 reference statements)

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“…For the MFCS, the air compressor is different from an SFCS and needs to satisfy the demands of three stacks at the same time. In previous studies [20], the advantages and disadvantages of several types of air compressors for SFCSs and MFCSs were compared, and a reciprocating piston air compressor was selected in this paper. The function of the intercooler is to cool the high-temperature air that has been compressed by the air compressor so that it is within a reasonable temperature range for the electrochemical reaction.…”

Section: Air Supply Subsystemmentioning

confidence: 99%

Simulation of a Novel Integrated Multi-Stack Fuel Cell System Based on a Double-Layer Multi-Objective Optimal Allocation Approach

Gao,

Zhou,

et al. 2024

Applied Sciences

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A multi-stack fuel cell system (MFCS) is a promising solution for high-power PEM fuel cell applications. This paper proposes an optimized stack allocation approach for power allocation, considering economy and dynamics to establish integrated subsystems with added functional components. The results show that an MFCS with target powers of 20 kW, 70 kW, and 120 kW satisfies lifetime and efficiency factors. The common rail buffer at the air supply subsystem inlet stabilizes pressure, buffers, and diverts. By adjusting the volume of the common rail buffer, it is possible to reduce the maximum instantaneous power and consumption of the air compressor. The integrated hydrogen supply subsystem improves hydrogen utilization and reduces parasitic power consumption. However, the integrated thermal subsystem does not have the advantages of integrated gas supply subsystems, and its thermal management performance is worse than that of a distributed thermal subsystem. This MFCS provides a solution for high-power non-average distribution PEM fuel cell systems.

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Section: Air Supply Subsystemmentioning

confidence: 99%

Simulation of a Novel Integrated Multi-Stack Fuel Cell System Based on a Double-Layer Multi-Objective Optimal Allocation Approach

Gao,

Zhou,

et al. 2024

Applied Sciences

Self Cite

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Intelligent pressure switching control method for air compressor group control based on multi-agent reinforcement learning

Chen,

Lan,

Wang

2024

IFS

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In order to effectively control the pressure and energy consumption of multiple air compressors within an acceptable range, an intelligent pressure switching control method for air compressor group control based on multi-agent RL is studied. This method uses sensors in the air compressor field control cabinet to collect data such as header pressure, air storage tank pressure, and air storage tank temperature and sends them to the edge data collector for integration. After integration, the main control cabinet sends them to the upper computer. Combined with the on-site collected data, a multi-agent-based air compressor group control model is designed to convert multiple air compressors in the air compressor group control problem into a multi-agent mode, facilitating unified switching control of the air compressor group. Then, using the intelligent pressure switching control method based on deep Q-learning, driven by a neural network controller, the frequency of the frequency converter is adjusted to control the pressure at the outlet of the air compressor terminal header within the set value range, completing the pressure intelligent switching control. After testing, this method has good application results in pressure control, energy saving, and other aspects after being used for intelligent pressure switching control of air compressor group control.

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Hydrogen Energy in Electrical Power Systems: A Review and Future Outlook

Dai,

Shen,

Deng

et al. 2024

Electronics

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Hydrogen energy, as a zero-carbon emission type of energy, is playing a significant role in the development of future electricity power systems. Coordinated operation of hydrogen and electricity will change the direction and shape of energy utilization in the power grid. To address the evolving power system and promote sustainable hydrogen energy development, this paper initially examines hydrogen preparation and storage techniques, summarizes current research and development challenges, and introduces several key technologies for hydrogen energy application in power systems. These include hydrogen electrification technology, hydrogen-based medium- and long-term energy storage, and hydrogen auxiliary services. This paper also analyzes several typical modes of hydrogen–electricity coupling. Finally, the future development direction of hydrogen energy in power systems is discussed, focusing on key issues such as cost, storage, and optimization.

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Structural Design, Matching, and Analysis of Air Supply Devices for Multi‐Stack Fuel Cell Systems

Cited by 4 publications

References 38 publications

Simulation of a Novel Integrated Multi-Stack Fuel Cell System Based on a Double-Layer Multi-Objective Optimal Allocation Approach

Simulation of a Novel Integrated Multi-Stack Fuel Cell System Based on a Double-Layer Multi-Objective Optimal Allocation Approach

Intelligent pressure switching control method for air compressor group control based on multi-agent reinforcement learning

Hydrogen Energy in Electrical Power Systems: A Review and Future Outlook

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