基于交叉耦合的浮筏举升系统模糊PI同步控制  

Synchronized fuzzy PI control for raft lifting system based on cross-coupling

作　　者：吴金波[1] 李天奇[1] 

机构地区：[1]华中科技大学船舶与海洋工程学院,湖北武汉430074

出　　处：《舰船科学技术》2015年第12期33-37,共5页Ship Science and Technology

基　　金：国家自然科学基金资助项目(50909046);中央高校基本科研业务费专项基金资助项目

摘　　要：针对某浮筏电液举升系统多缸运动同步控制问题,基于阀控液压缸的位置伺服系统数学模型,采用交叉耦合模糊PI同步控制方式,设计了一种形式简单的四缸同步控制策略,仿真与实验结果验证了该控制方法的有效性。与传统的"等同式"PID同步控制策略进行的对比结果表明,本文提出的控制策略具有较高的同步运动精度和较强的鲁棒性。In order to solve the multi-cylinder movement synchronization problem of an electro- hydraulic lifting system for floating raft, a simple four cylinder synchronization control strategy based on the mathematic model of the valve controlled cylinder electro-hydraulic position servo system was developed by employing the cross-coupling PI synchronization control structure with fuzzy inference engine. The efficiency of the proposed control method was demonstrated by the simulation and experimental results. Compared with the controller based on the traditional ＇ equivalent＇ synchronization control strategy, the control strategy proposed in this paper had higher synchronous accuracy and better robustness.

关 键 词：交叉耦合 模糊PI控制 同步举升 浮筏 

分 类 号：TH137[机械工程—机械制造及自动化]