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| Coordinating optimization-based sliding mode variable structure control for electro-hydraulic servo system | |
| 引用本文： | Yong YANG,An LUO,Hua HAN. Coordinating optimization-based sliding mode variable structure control for electro-hydraulic servo system[J]. 控制理论与应用(英文版), 2006, 4(2): 168-174. DOI: 10.1007/s11768-006-5164-6 |
| 作者姓名： | Yong YANG An LUO Hua HAN |
| 作者单位： | [1]College of Information Science and Engineering, Central South University, Changsha Hunan 410083, China [2]Changsha University of Science and Technology, Changsha Hunan 410076, China [3]College of Electric and Information Engineering, Hunan University, Changsha Hunan 410082, China |
| 基金项目： | This work was supported by the Provincial Natural Science Foundation of Hunan（No.04JJ6033） and the Research Foundation of Hunan Education Bureau （No.03C066）. |
| 摘 要： | A sliding mode variable structure control （SMVSC） based on a coordinating optimization algorithm has been developed. Steady state error and control switching frequency are used to constitute the system performance indexes in the coordinating optimization, while the tuning rate of boundary layer width （BLW） is employed as the optimization parameter. Based on the mathematical relationship between the BLW and steady-state error, an optimized BLW tuning rate is added to the nonlinear control term of SMVSC. Simulation experiment results applied to the positioning control of an electro-hydraulic servo system show the comprehensive superiority in dynamical and static state performance by using the proposed controller is better than that by using SMVSC without optimized BLW tuning rate. This succeeds in coordinately considering both chattering reduction and high-precision control realization in SMVSC. |
| 关 键 词： | 滑动模式 变量结构控制 SMVSC 边界层 伺服系统 |
| 收稿时间： | 2005-06-28 |
| 修稿时间： | 2006-03-18 |
Coordinating optimization-based sliding mode variable structure control for electro-hydraulic servo system |
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| Yong YANG,An LUO,Hua HAN. Coordinating optimization-based sliding mode variable structure control for electro-hydraulic servo system[J]. Journal of Control Theory and Applications, 2006, 4(2): 168-174. DOI: 10.1007/s11768-006-5164-6 | |
| Authors: | Yong YANG An LUO Hua HAN |
| Affiliation: | 1. College of Information Science and Engineering, Central South University, Changsha Hunan 410083, China;Changsha University of Science and Technology, Changsha Hunan 410076, China 2. College of Electric and Information Engineering, Hunan University, Changsha Hunan 410082, China 3. College of Information Science and Engineering, Central South University, Changsha Hunan 410083, China |
| Abstract: | A sliding mode variable structure control (SMVSC) based on a coordinating optimization algorithm has been developed. Steady state error and control switching frequency are used to constitute the system performance indexes in the coordinating optimization, while the tuning rate of boundary layer width (BLW) is employed as the optimization parameter. Based on the mathematical relationship between the BLW and steady-state error, an optimized BLW tuning rate is added to the nonlinear control term of SMVSC. Simulation experiment results applied to the positioning control of an electro-hydraulic servo system show the comprehensive superiority in dynamical and static state performance by using the proposed controller is better than that by using SMVSC without optimized BLW tuning rate. This succeeds in coordinately considering both chattering reduction and high-precision control realization in SMVSC. |
| Keywords: | Sliding mode variable structure control(SMVSC) Varying boundary layer Chattering reduction Steady-state performance Coordinating optimization(CO) Electro-hydraulic servo system (EHSS) |
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