基于反馈线性化滑模解耦和模糊防喘振补偿的 PEMFC 供气系统协调控制方法

IF 9 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy Pub Date : 2024-11-05 DOI:10.1016/j.renene.2024.121760

Chao Peng , Chuan Xie , Jianxiao Zou , Xinyan Jiang , Yun Zhu

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引用次数: 0

摘要

随着质子交换膜燃料电池（PEMFC）在交通和能源领域的应用，对 PEMFC 供气系统的气流和压力跟踪性能、效率和稳定性的要求越来越高。为改善 PEMFC 负载变化下阴极空气流量和压力控制性能，避免空气压缩机喘振，提出了一种新颖的基于反馈线性化滑模解耦和模糊防喘振补偿的协调控制方法。首先，根据 PEMFC 系统的净输出功率分析，计算出不同负载下氧气过剩率（OER）和阴极气压的最佳参考值。然后，设计了一个扩展状态观测器来实时估计阴极气压和流量，并设计了一个基于反馈线性化滑动模式的解耦控制器，以提高 OER 和气压跟踪控制性能和鲁棒性。考虑到空气压缩机的运行轨迹和浪涌线，设计了一种基于模糊逻辑的防浪涌补偿器，通过同时补偿空气流量和压力来防止空气压缩机浪涌。在 PEMFC 供气控制实验中实施了所提出的控制方法，结果证明了其有效性。

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A feedback linearization sliding mode decoupling and fuzzy anti-surge compensation based coordinated control approach for PEMFC air supply system

With the application of proton exchange membrane fuel cell (PEMFC) in the field of transportation and energy, the requirements for air flow and pressure tracking performance, efficiency and stability of PEMFC air supply system become higher and higher. To improve PEMFC cathode air flow and pressure control performance under load variation and avoid surge of air compressor, a novel feedback linearization sliding mode decoupling and fuzzy anti-surge compensation based coordinated control approach is proposed. Firstly, optimal references of oxygen excess ratio (OER) and cathode air pressure under different load are calculated based on net output power of PEMFC system analysis. Then, an extended state observer is designed to estimate the cathode air pressure and flow in real time, a feedback linearization sliding mode based decoupling controller is designed to enhance OER and air pressure tracking control performance and robustness. Considering on the operating trajectory and surge line of air compressor, a fuzzy logic based anti-surge compensator is designed to prevent air compressor from surge by compensating both air flow and pressure simultaneously. The proposed control approach is implemented in PEMFC air supply control experiments and the results demonstrates its effectiveness.

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来源期刊

Renewable Energy 工程技术-能源与燃料

CiteScore

18.40

自引率

9.20%

发文量

1955

审稿时长

6.6 months

期刊介绍： Renewable Energy journal is dedicated to advancing knowledge and disseminating insights on various topics and technologies within renewable energy systems and components. Our mission is to support researchers, engineers, economists, manufacturers, NGOs, associations, and societies in staying updated on new developments in their respective fields and applying alternative energy solutions to current practices. As an international, multidisciplinary journal in renewable energy engineering and research, we strive to be a premier peer-reviewed platform and a trusted source of original research and reviews in the field of renewable energy. Join us in our endeavor to drive innovation and progress in sustainable energy solutions.