CAJ | 학술논문

对刚性轨道磁浮系统模型,分析了双环PID控制律作用下,间隙信号温漂条件下系统的稳定性和动态性能,把非线性系统在平衡点线性化,利用劳斯判据得到了系统仍然能稳定,但动态性能变差加剧车轨的耦合振动.为解决高速磁浮列车间隙传感器的温漂问题,重新选择状态变量,利用输入反馈线性化的方法,设计了新控制器.在新控制输入作用下,使系统能够适应悬浮间隙的变化,进而能够顺利解决间隙传感器的温漂问题,并且系统的动态性能几乎保持不变.仿真结果证明了理论推导的正确性.
대강성궤도자부계통모형,분석료쌍배PID공제률작용하,간극신호온표조건하계통적은정성화동태성능,파비선성계통재평형점선성화,이용로사판거득도료계통잉연능은정,단동태성능변차가극차궤적우합진동.위해결고속자부열차간극전감기적온표문제,중신선택상태변량,이용수입반궤선성화적방법,설계료신공제기.재신공제수입작용하,사계통능구괄응현부간극적변화,진이능구순리해결간극전감기적온표문제,병차계통적동태성능궤호보지불변.방진결과증명료이론추도적정학성.
Given the model of maglev system with the rigid guide-way,under the control of the classic double PID controller,the system stability and dynamic characteristics are discussed with the gap sensor temperature drift.The results show that the system remains stable,but the dynamic characteristics perform badly.To solve the gap sensor temperature drift problem of the high speed maglev train,the feedback linearization method is used,new state variables are adopted,a new controller is designed.With the controller the system can adapt to the suspension mass and the gap sensor temperature drift can be compensated.What's more,the dynamic performances are almost kept unchanged.Simulations show that the theoretical study is valid.