A speed tracking control scheme for high-speed trains based on second level adaptation with fixed models
TAN Chang
JIANG Kun
CHEN Xin-yue
Abstract：For the poor transient response of traditional adaptive controller,a second level adaptive controller with fixed models is designed to realize the asymptotic tracking of a given reference curve.Firstly,a longitudinal model of the train is established by force analysis.Then,according to the prior knowledge,the unknown parameter space of the train model is determined and a fixed identification model set of the train can be established within the unknown parameter space.The convex combination method is used to design the controller,and the second level adaptive control strategy is used to update the controller parameters.Finally,the simulation experiment is carried out with the data of CRH380AL type high-speed train processing in Jinan to Xuzhou Section.The simulation results show that the system has desired stability and tracking performance,and can quickly approach the new working point after a dynamic mutation of train model parameters,significantly improving the transient performance of the speed tracking control system.
Keywords：high-speed trainmultiple modelssecond level adaptationspeed tracking controltransient performance
Publication Date：2025-01-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 41-49 )