Power Switching Based on Trajectory Planning and Sliding Mode Control for Solid Oxide Fuel Cell Systems  

作　　者：Zhen Wang Guoqiang Liu Xingbo Liu Jie Wang Zhiyang Jin Xiaowei Fu Zhuo Wang Bing Jin Zhonghua Deng Xi Li 

机构地区：[1]Key Laboratory of Imaging Processing and Intelligent Control of Ministry of Education,School of Artificial Intelligence and Automation,Huazhong University of Science and Technology,Wuhan,China [2]Research Institute of Huazhong University of Science and Technology in Shenzhen,Shenzhen,China [3]Hubei Huazhong Electric Power Technology Development Co.,Ltd.,Wuhan,China [4]School of Computer Science and Technology,Wuhan University of Science and Technology,Wuhan,China [5]School of Artificial Intelligence and Automation,Huazhong University of Science and Technology,Wuhan,China,and he is also with the Wuhan Huamao Automation Co.,Ltd.,Wuhan,China

出　　处：《Journal of Modern Power Systems and Clean Energy》2024年第6期1968-1979,共12页现代电力系统与清洁能源学报(英文)

基　　金：This work was supported by the National Key Research and Development Program of China(No.2022YFB4003805);Jiangsu Key Research and Development Program(No.BE2023092-3);Hubei Province Local Leaded by Central Science and Technology Development Special Project(No.2023EG001);International Science and Technology Cooperation Project in Hubei Province(No.2022EHB011).

摘　　要：To improve the safety of the solid oxide fuel cell(SOFC)systems and avoid the generation of large amounts of pollutants during power switching,this paper designs a power switching strategy based on trajectory planning and sliding mode control(TP-SMC).The design elements of the power switching strategy are proposed through simulation analysis at first.Then,based on the gas transmission delay time and the change of gas flow obtained from testing,trajectory planning(TP)is implemented.Compared with other power switching strategies,it has been proven that the power switching strategy based on TP has significantly better control performance.Fur-thermore,considering the shortcomings and problems of TP in practical application,this paper introduces sliding mode control(SMC)on the basis of TP to improve the power switching strat-egy.The final simulation results also prove that the TP-SMC can effectively suppress the impact of uncertainty in gas flow and gas transmission delay time.Compared with TP,TP-SMC can ensure that under uncertain conditions,the SOFC system does not experience fuel starvation and temperature exceeding limit during power switching.Meanwhile,the NOx emissions are also within the normal and acceptable range.This paper can guide the power switching process of the actual SOFC sys-tems to avoid safety issues and excessive generation of NOx,which is very helpful for improving the performance and ser-vice lifeof the SOFCsystems.

关 键 词：Solid oxide fuel cell(SOFC)system power switching SAFETY NOx emission trajectory planning sliding mode control 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TP273[自动化与计算机技术—检测技术与自动化装置]