燃料电池电动拖拉机能量管理的研究  

Energy Management Strategy of Fuel Cell Electric Tractors

作　　者：吴建钢 夏长高[1] 孙闫 韩江义[1] 盛志鹏 Wu Jiangang;Xia Changgao;Sun Yan;Han Jiangyi;Sheng Zhipeng(School of Automotive and Traffic Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《农机化研究》2024年第6期248-253,共6页Journal of Agricultural Mechanization Research

基　　金：苏北科技专项-先导性项目(SZ-YC202165);江苏省重点研发计划项目(BE2018343-1)。

摘　　要：为了解决传统柴油拖拉机污染物排放高以及纯电动拖拉机持续作业时间短的问题,设计了以燃料电池作为主要能源、电池作为辅助能源、电机作为动力源的新型拖拉机动力总成系统,搭建了拖拉机犁耕整车模型、燃料电池模型、电池模型以及燃料电池耐久模型。为了合理分配燃料电池和电池电流,设计了一种基于规则的控制策略,通过对二次型效用函数的微分并结合KKT(Karush-Kuhn-Tucker Conditions)条件实现了燃料电池及电池在能量管理过程中的收益的最大化。仿真结果表明:所设计的能量管理策略可以很好地维持电池SOC、降低燃料电池性能衰退、提升拖拉机犁耕作业里程,拖拉机搭载960g氢气,初始SOC=90%时,可持续犁耕作业2.8 h。In order to solve the problems of high pollutant emission of traditional diesel tractors and short continuous operation time of pure electric tractors,this paper puts forward a new tractor powertrain system that uses fuel cells as the main energy source,batteries as auxiliary energy sources,and motors as the power source.The tractor ploughing vehicle model,fuel cell model,battery model and fuel cell durability model are built.In order to distribute the fuel cell and battery current reasonably,a rule-based control strategy is designed.The fuel cell and battery profit function are constructed through the differentiation of the quadratic utility function.The KKT(Karush-Kuhn-Tucker Conditions)conditions is used to maximize the profit function of fuel cells and batteries in the energy management process.The simulation results show that the designed energy management strategy can well maintain the battery SOC,reduce the performance degradation of the fuel cell,and improve the tractor ploughing mileage.The tractor with 960g of hydrogen and an initial SOC of 90%can sustain ploughing operation for 2.8 hours.

关 键 词：电动拖拉机 能量管理 燃料电池 KKT条件 

分 类 号：S219.07[农业科学—农业机械化工程]