基于Super-twisting观测器的制动缸自适应鲁棒控制  

Adaptive robust control of locomotive brake cylinder with STO

作　　者：崔晶[1] 刘芳璇[1] 张爱民[1] 侯艳[1] 王桂荣[2] CUI Jing;LIU Fang xuan;ZHANG Ai min;HOU Yan;WANG Gui rong(Xi’an Railway Vocational and Technical Institute,Xi’an 710028,China;China Metrology University,Hangzhou 310018,China)

机构地区：[1]西安铁路职业技术学院,陕西西安710028 [2]中国计量大学,浙江杭州310018

出　　处：《电子设计工程》2020年第7期6-9,14,共5页Electronic Design Engineering

基　　金：陕西省教育厅自然科学研究项目(18JK1111)。

摘　　要：针对实际工况中轮对踏面径向形变挤压机车制动缸活塞及闸瓦产生的时变扰动,设计Super-twisting观测器对其实际值进行估计并对估计误差自适应模糊逼近以削弱时变扰动。构造基于微分控制律的自适应鲁棒控制器,将其应用于制动缸闸瓦位置控制系统。理论分析及仿真结果表明,系统闭环各状态变量输出有界,滑模面导数收敛于0而滑模面常值收敛。Super-twisting observer(STO)is designed to estimate the actual value of time-varying interference caused by extrusion from tread radial deformation to piston rod and brake shoe with the observation error approached by adaptive fuzzy logic system to weaken time-varying perturbation.Adaptive robust controller based on differential control law(DCL)is constructed to apply to brake cylinder position control system.Theoretical analyses and simulation results demonstrate that state variables have closed-loop output bound with sliding surface derivative boasting of globally uniform bound and convergence to 0 while sliding surface to a constant value.

关 键 词：机车制动缸 Super-twisting观测器 自适应模糊逼近 微分控制律 自适应鲁棒控制 

分 类 号：TN341[电子电信—物理电子学]