混合磁悬浮平台的零功率特性分析  

Zero Power Characteristic Analysis of Hybrid Magnetic Levitation Platform

作　　者：张晓友 尚利冬 赵川 孙凤[1] 金俊杰[1] 徐方超[1] ZHANG Xiao-you;SHANG Li-dong;ZHAO Chuan;SUN Feng;JIN Jun-jie;XU Fang-chao(School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China;Department of Mechanical Engineering,Nippon Institute of Technology,Saitama 3458501,Japan)

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870 [2]日本工业大学机械工学科,日本琦玉3458501

出　　处：《机械工程与自动化》2023年第6期40-42,45,共4页Mechanical Engineering & Automation

基　　金：国家自然科学基金资助项目(52005345,52005344);国家重点研发计划项目(2020YFC2006701);中国博士后科学基金资助项目(2022M722223)。

摘　　要：针对电磁悬浮功耗高以及永磁悬浮难控制的问题,提出一种基于零功率控制的混合磁悬浮系统。首先介绍了混合磁悬浮平台的结构与原理,其次建立混合电磁铁的动力学方程,最后采用电流积分反馈方式设计基于PD的零功率控制器并进行仿真分析。仿真结果表明:在中心加载,达到零功率悬浮状态时各磁极气隙相等;但施加偏载后,各磁极气隙出现差异,平台出现倾斜,在零功率控制器作用下系统稳态电流均能趋于零。Aiming at the problems of high power consumption of electromagnetic levitation and difficult control of permanent magnetic levitation,a hybrid magnetic levitation system based on zero power control is proposed.Firstly,the structure and principle of hybrid magnetic levitation platform are introduced.Secondly,the dynamic equation of hybrid electromagnet is established.Finally,the zero power controller based on PD is designed by current integral feedback method and simulated.The simulation results show that the air gap of each pole is equal when the zero power suspension state is reached at the center load,but the air gap of each pole is different after the partial load is applied,and the platform is inclined.Under the action of zero power controller,the steady state current of the system can tend to zero.

关 键 词：混合磁悬浮平台 零功率控制器 特性分析 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]