基于稀疏混沌多项式法的电动汽车无线电能传输效率不确定性量化  

Uncertainty quantification of electric vehicle's wireless power transfer efficiency based on sparse polynomial chaos expansion method

作　　者：王天皓[1] 李博 于全毅 徐琳琳 贾国强[2] 关珊珊[1] WANG Tian-hao;LI Bo;YU Quan-yi;XU Lin-lin;JIA Guo-qiang;GUAN Shan-shan(College of Instrumentation and Electrical Engineering,Jilin University,Changchun 130061,China;Automotive Department,China Quality Certification Centre,Beijing 100070,China)

机构地区：[1]吉林大学仪器科学与电气工程学院,长春130061 [2]中国质量认证中心汽车部,北京100070

出　　处：《吉林大学学报(工学版)》2024年第12期3433-3442,共10页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省科技发展计划项目(20230201122GX,20220101196JC);吉林大学研究生创新研究计划项目(2022160)。

摘　　要：提出采用子空间追踪稀疏混沌多项式法(SP-PCE)实现EV-WPT系统传输效率的不确定性量化。首先,通过建立EV-WPT系统三维电磁学仿真模型,并合理设置相关变量的分布类型,利用SP-PCE法计算得到表征EV-WPT系统传输效率不确定性的均值、方差和概率密度曲线等统计特征参数;然后,结合SP-PCE法和Sobol法进行全局灵敏度分析,获得随机输入变量对系统传输效率影响程度的量化指标。最后,通过数值仿真实验验证了本文方法的准确性和高效性,为保证EV-WPT系统高传输效率及系统结构优化提供理论依据。The subspace pursuit-polynomial chaos expansion method(SP-PCE)was proposed for the uncertainty quantification of EV-WPT system's transfer efficiency.Firstly,by establishing the threedimensional electromagnetic simulation model of EV-WPT system and reasonably setting the distribution type of relevant variables,the statistical characteristic parameters such as mean,variance and probability density curve that can characterize the uncertainty of EV-WPT system's transfer efficiency were calculated by SP-PCE method.Then,combining the SP-PCE method and Sobol method to carry out the global sensitivity analysis to obtain the influence degree's quantitative index of random input variables on system's transfer efficiency.Finally,the accuracy and efficiency of the proposed method were verified by numerical simulation experiments,which provides a theoretical basis for ensuring the high transfer efficiency of EVWPT system as well as system's structure optimization.

关 键 词：车辆工程 无线电能传输 磁耦合 不确定性量化 稀疏混沌多项式展开法 全局灵敏度分析 

分 类 号：U469.72[机械工程—车辆工程] TM724[交通运输工程—载运工具运用工程]