Model identification of hydrostatic center frame control system based on MATLAB

被引：0
作者：
机构：
[1] Rongcheng College of Harbin University of Science and Technology, Rongcheng, Shandong Province
来源：
| 1600年 / Academy Publisher卷 / 08期
关键词：
Electro-hydraulic servo system; Hydrostatic center frame; Model identification; Oil film stiffness; Semi-physical simulation; Sliding model variable structure;
D O I：
10.4304/jnw.8.6.1322-1328
中图分类号：
学科分类号：
摘要：
The composition and principle of an electrohydraulic servo oil film stiffness control system of hydrostatic center frame will be introduced, and the system model identification as well as the verification will be carried out based on semi-physical simulation environment of Real-time Workshop (RTW) and system identification toolbox in MATLAB. A control strategy of fuzzy sliding model variable structure will be presented, and it is applied in the model achieved by identifications, adopting the method of fuzzy control system approximating equivalent control and designing switching controller based on fuzzy control gain dynamic regulation, could inhabit the buffeting existing in sliding model variable structure control. Simulation results show that performance of an electrohydraulic servo oil film stiffness control system is improved significantly for hydrostatic center frame based on fuzzy sliding model variable structure controller, which can't only effectively inhabit buffeting, reduce steady-state error, but also has strong robustness for uncertainties of structure parameter. © 2013 ACADEMY PUBLISHER.
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页码：1322 / 1328
页数：6
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