飞轮储能转子强度和模态有限元分析  

Strength and Modal Finite Element Analysis of Flywheel Energy Storage Rotor

作　　者：张雅芝 李丽 ZHANG Yazhi;LI Li(College of Electrical and Information Engineering,Hunan Institute of Engineering,Xiangtan 411004,China;CRRC Zhuzhou Electric Co.,Ltd,Zhuzhou 412000,China)

机构地区：[1]湖南工程学院电气与信息工程学院,湘潭411104 [2]中车株洲电机有限公司,株洲412000

出　　处：《湖南工程学院学报（自然科学版）》2023年第3期16-21,57,共7页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：湖南省教育厅优秀青年项目(19B131).

摘　　要：高速飞轮储能系统需要解决的关键问题之一是飞轮高速运行过程中飞轮转子的强度、振动等问题.为了对比金属飞轮和碳纤维飞轮在材料方面的影响,基于ANSYSWorkbench仿真平台,采用有限元方法对功率为75 kW、转速为28000 r/min的飞轮储能内嵌式永磁电机转子进行静强度分析;并对转子进行模态分析,分析转子的主要振型,绘制Campbell图,计算临界转速,结果表明:所设计的两种材料的飞轮储能系统转子满足强度要求,其工作转速在安全范围内,与金属飞轮转子相比,碳纤维飞轮转子强度安全系数和转速安全裕量高,为飞轮储能系统转子设计和安全运行提供了理论依据.One of the key problems to be solved in the high-speed flywheel energy storage system is the strength and vibration of the flywheel rotor during the high-speed operation of the flywheel,which ensures the efficient and reliable operation of the flywheel energy storage system.To investigate the influence of the mate-rials on the performance of the flywheel energy storage system,the static strength analysis of flywheel energy storage embedded permanent-magnet motor rotor with 75kW power and 28000rpm rotation speed is per-formed by finite element method on ANSYS Workbench simulation platform;the rotor is modally analyzed;the main rotor array is analyzed,and the Campbell diagram is drawn.The critical speed is calculated and the results indicate that the strength requirements can be met by the rotor designed by both materials.Meanwhile,its working speed is within the safe range.Compared with the metal flywheel rotor,the carbon fiber flywheel rotor has a higher strength safety factor and a wilder speed safety margin.This paper provides theoretical foundations for the design of the rotor and safe operation of the flywheel energy storage system.

关 键 词：飞轮储能转子 碳纤维 有限元仿真 静强度 模态分析 临界转速 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]