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J4  2010, Vol. 44 Issue (8): 1441-1448    DOI: 10.3785/j.issn.1008-973X.2010.08.002
自动化技术、计算机技术     
电液比例系统鲁棒自适应动态表面控制
白寒,管成
浙江大学 机械与能源工程学院, 浙江 杭州 310027
Robust adaptive dynamic surface control of electro-hydraulic
proportional system
BAI Han, GUAN Cheng
College of Mechanical and Energy Engineering, Zhejiang University, Hangzhou 310027,  China
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摘要:

对基于语义网络的产品建模及配置方案的搜索方法进行集成研究,以提高产品配置设计的效率.在相关本体的基础上,建立了基于语义网络的产品模型结构,并据此解析用户所输入的查询语句.基于语义网络的产品模型提供一种定量与定性相结合的一致化的设计实例与需求的表达方式.进一步通过产品的语义网络模型可以获取设计需求的隐含条件,使得需求在设计方案的搜索匹配过程中被更充分地考虑.配置设计方案的搜索则首先利用基于语义网络的推理技术与本体语言RDFS构造待求配置设计问题的语义网络片断,然后通过语义搜索与匹配度计算排序从设计实例库中获取符合当前需求配置设计方案.同时,通过注塑机螺杆为实例的应用证明了基于语义网络的产品模型在支持配置选型设计方案搜索方面的有效性与实用性.相对于传统的产品模型而言,基于语义网络的产品模型更关注属性之间的内部联系,经实例验证基于语义网络的产品模型使得配置设计过程更符合用户的实际需求.

Abstract:

A robust adaptive dynamic surface control method was presented for a singlerod electrohydraulic actuator with unknown deadzone. By introducing a novel description of general nonlinear deadzone, the proposed scheme was extended to overcome the effect of deadzone. The uncertain deadzone model was transformed into a linear system with a timevarying gain and an uncertainty term. The timevarying gain of deadzone model was treated by using a robust control method, and the unknown bound of deadzone model uncertainty was estimated online. Furthermore, the backstepping design was simplified by utilizing dynamic surface control, and by combining a simple robust method, the electrohydraulic proportional systems controller and adaptation laws for uncertain parameters were presented. The proposed control scheme is simple and insensitive to parameter and model uncertainties. Experimental results show that the nonlinear control algorithm has a good performance for the tracking task in the presence of unknown deadzone of proportional directional valve.

收稿日期: 2008-11-04 出版日期: 2010-09-21
:  TP 271  
基金资助:

国家科技支撑计划资助项目(2007BAF13B04)

通讯作者: 管成,男,副教授.     E-mail: guan@zju.edu.cn
作者简介: 白寒(1984-),男,浙江衢州人,博士生,主要从事机电系统控制研究. E-mail:bunnyjudybh@163.com
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引用本文:

白寒, 管成. 电液比例系统鲁棒自适应动态表面控制[J]. J4, 2010, 44(8): 1441-1448.

BAI Han, GUAN Cheng. Robust adaptive dynamic surface control of electro-hydraulic
proportional system. J4, 2010, 44(8): 1441-1448.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.08.002        http://www.zjujournals.com/eng/CN/Y2010/V44/I8/1441

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