文章基本信息

标题：Application of self-tuning fuzzy proportional–integral–derivative control in hydraulic crane control system
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作者：Wenrui Hao ; Jiangming Kan
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2016
卷号：8
期号：6
DOI：10.1177/1687814016655258
语种：English
出版社：Sage Publications Ltd.
摘要：Generally, pressure oscillation has negative effect on hydraulic crane system which requires high dynamic stability under a flexible operating condition. In order to reduce the hydraulic pressure oscillation, a self-tuning fuzzy proportional–integral–derivative control strategy is proposed for improving the control performance of hydraulic crane. In this article, a fuzzy proportional–integral–derivative controller which consists of a proportional–integral–derivative controller and a fuzzy inference unit with two inputs and three outputs is designed for valve control. Both fuzzy proportional–integral–derivative control and traditional proportional–integral–derivative control are simulated using MATLAB based on the model of hydraulic crane. Simulation experiments are conducted with different crane tip velocities. The experimental results show that pressure amplitude reduced about 25% at low velocity and pressure oscillation of hydraulic cylinder is suppressed comparing with traditional proportional–integral–derivative controller. In addition, fuzzy proportional–integral–derivative control enables a smoother variation and a higher accuracy in changing processes of joint angle and crane tip position. The performance of the hydraulic crane is improved.
关键词：Fuzzy proportional–integral–derivative control; hydraulic crane; simulation; MATLAB; pressure oscillation