| 参数自调整Fuzzy-PID对数控机床进给系统的研究 |
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| 引用本文： | 刘学鹏 梅雪松 吴序堂. 参数自调整Fuzzy-PID对数控机床进给系统的研究[J]. 机械科学与技术, 2004, 23(1): 40-42,54 |
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| 作者姓名： | 刘学鹏 梅雪松 吴序堂 |
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| 作者单位： | 西安交通大学,西安,710049;西安交通大学,西安,710049;西安交通大学,西安,710049 |
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| 基金项目： | 国家自然科学基金(50275117)资助 |
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| 摘 要： | 描述了数控机床进给系统的模型 ,将PID参数自适应调整与模糊控制相结合 ,得到模糊PID调节器 ,它具有单输入、双参数可调的特点。同时模糊增益和PID增益相互影响。该控制器有效地控制数控机床进给系统 ,具有很强的鲁棒性 ,提高了系统的各项指标。适用范围广。
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| 关 键 词： | Fuzzy-PID 数控机床 进给系统 |
| 文章编号： | 1003-8728(2004)01-0040-03 |
A Fuzzy-PID Controller for Self-Tuning of a Feed Drive System in CNC Machines |
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| LIU Xue-peng,MEI Xue-song,WU Xu-tang. A Fuzzy-PID Controller for Self-Tuning of a Feed Drive System in CNC Machines[J]. Mechanical Science and Technology for Aerospace Engineering, 2004, 23(1): 40-42,54 |
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| Authors: | LIU Xue-peng MEI Xue-song WU Xu-tang |
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| Abstract: | This paper describes the mathematical model of feed drive system of CNC. The method of fuzzy formulation is uniquely characterized by: (i) one fuzzy input variable involving the PID manipulated variable; (ii) two parameters to be tuned,while previously tuned PID parameters are retained; and (iii) a gain scheduling differential equation which relates the fuzzy and conventional PID manipulated variable and enables fuzzy gain scheduling. The method is illustrated by the simulation and the experiment. The results of the simulation and the practice show that the fuzzy PID controller significantly outperforms its linear counterpart,and is more robust over a wide range of patient condition. |
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| Keywords: | Fuzzy-PID NC machine tool Feed drive system |
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