不同控制器对基础移动的电磁轴承-转子系统的减振效果  

Vibration Reduction Effort of Electromagnetic Bearing-Rotor System During Base Motion with Different Controllers

作　　者：张国荣 席光[1] ZHANG Guorong;XI Guang(School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西安交通大学能源与动力工程学院,西安710049

出　　处：《轴承》2024年第7期52-61,共10页Bearing

基　　金：国家自然科学基金重点项目(52130603)。

摘　　要：为探究线性自抗扰控制器(LADRC)、H∞控制器和分散PID控制器对基础移动的电磁轴承-转子系统的减振效果,建立了基础移动工况下的电磁轴承-转子系统动力学模型,模拟了飞机俯冲-拉升和水平转弯2种工况并计算了3种控制下的转子振动响应及控制电流。结果表明:H∞控制器对基础移动干扰的抑制性能最好,LADRC次之,分散PID控制器最弱;当飞行速度与最大滚翻角增大时,3种控制下的转子最大位移及最大控制电流均会增大,LADRC和H∞控制下的最大控制电流相差不多且均小于PID控制;LADRC和H∞控制下的转子最大位移也比PID控制更小。In order to investigate the vibration reduction effect of linear active disturbance rejection controller(LADRC),H∞controller and decentralized PID controller on electromagnetic bearing-rotor system during base motion,a dynamic model of electromagnetic bearing-rotor system considering base motion is established.Two operating conditions of diving-pulling up and horizontal turning of aircraft are simulated,and the vibration response of rotor and control current under all three controls are calculated.The results show that the H∞controller has the best performance in suppressing the base motion disturbance,followed by LADRC,and the decentralized PID controller is the worst;when the flight speed and maximum rollover angle increase,the maximum displacement of rotor and maximum control current under all three controls will increase,and the maximum control current under LADRC and H∞controls are similar and smaller than that under PID control;the maximum displacement of rotor under LADRC and H∞controls is also smaller than that under PID control.

关 键 词：滑动轴承 磁力轴承 转子系统 控制器 控制算法 自适应控制 振动抑制 动力学模型 

分 类 号：TH133.31[机械工程—机械制造及自动化] TP273.2[自动化与计算机技术—检测技术与自动化装置]