Paper: Sliding Mode Control of Lateral Semi-Active Suspension of High-Speed Train

作     者：He, Jing Liu, Zhitian Zhang, Changfan 

作者机构：Hunan Univ Technol Coll Elect & Informat Engn 88 Taishan Rd Zhuzhou 412007 Hunan Peoples R China 

出 版 物：《JOURNAL OF ADVANCED COMPUTATIONAL INTELLIGENCE AND INTELLIGENT INFORMATICS》 (J. Adv. Comput. Intell. Intelligent Informatics)

年 卷 期：2020年第24卷第7期

页      面：925-933页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Natural Science Foundation of China [61773159, U1934219] Project of Hunan Provincial Department of Education [19A137] Excellent Youth Research Project of Education Department of Hunan Province [18B303] 

主　　题：high-speed train semi-active suspension system time-varying spring coefficient sliding mode variable structure 

摘      要：A control algorithm for lateral semi-active suspension based on sliding mode observer is proposed to solve lateral vibration of high-speed trains caused by railway surface excitation. Firstly, the multi-degree-of-freedom vehicle dynamics model of high-speed train is revised on the basis of variation in spring coefficient caused by long-time vibration in practical engineering;Secondly, the observer based on sliding mode variable structure is designed to obtain real-time estimation of unknown interference terms using the equivalent control principle of sliding mode variable structure, which can be further used to calculate the observed values of unknown interference terms;Finally, a control algorithm based on sliding mode observer is proposed. The algorithm inputs complex unknown interference observed values into the sliding mode controller (SMC) as feedback, thereby allowing the observed values to accurately track nonlinear unknown disturbance and weaken the vibration. Stimulation and experimental verification have proven the effectiveness and feasibility of the proposed method.