| 铝合金脉冲MIG焊过程解耦控制模型及仿真 |
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| 引用本文： | 石玗,薛诚,樊丁,李建军.铝合金脉冲MIG焊过程解耦控制模型及仿真[J].焊接学报,2008,29(5):9-12. |
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| 作者姓名： | 石玗 薛诚 樊丁 李建军 |
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| 作者单位： | 1. 兰州理工大学,有色金属合金省部共建教育部重点实验室,兰州,730050
2. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050 |
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| 基金项目： | 国家自然科学基金
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教育部春晖计划项目
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甘肃省自然科学基金
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兰州理工大学校科研和教改项目 |
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| 摘 要： | 针对铝合金脉冲MIG焊存在多参数强烈耦合并严重影响过程控制稳定性的问题,建立了其多输入多输出(MIMO)控制模型.在此基础上,运用多变量控制理论,设计了神经网络PID多变量强耦合时变控制系统.介绍了该控制器的结构和算法,分析了控制对象的特点,对铝合金脉冲MIG焊过程进行了仿真.结果表明,采用神经网络PID控制的神经网络对象逆模型解耦控制系统结构和解耦算法来控制铝合金MIG焊接过程,取得满意的动态和稳态性能.为实现铝合金脉冲MIG焊过程控制奠定了理论基础.
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| 关 键 词： | MIMO模型 解耦控制 铝合金MIG焊 系统仿真 |
| 文章编号： | 0253-360X(2008)05-0009-04 |
| 收稿时间： | 2007/7/16 0:00:00 |
| 修稿时间： | 2007年7月16日 |
Modeling and simulation of decoupling control system of aluminum pulsed MIG welding |
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| SHI Yu,XUE Cheng,FAN Ding and LI Jianjun.Modeling and simulation of decoupling control system of aluminum pulsed MIG welding[J].Transactions of The China Welding Institution,2008,29(5):9-12. |
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| Authors: | SHI Yu XUE Cheng FAN Ding and LI Jianjun |
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| Affiliation: | Key Laboratory of Non-ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China,State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China,Key Laboratory of Non-ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China and State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | In aluminum pulsed MIG welding, too much coupled welding parameters influence the stabilization of control sy stem of welding process.In order to solve above problem, the multi-input multi-output (MIMO)control model of aluminum pulsed MIG welding was presented.Based on thisMIMO model, a neural network inverse plant decoupling control system with the neural network PID controller was designed to control welding process.The structure and the principle of this control system were given, and the characteristics of control system were analyzed.The simulation results show that the satisfied dynamic and static performance had been obtained.It provides the theoretical basis to realize the process control in aluminum pulsedMIG welding. |
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| Keywords: | MIMO model decoupling control system aluminum MIG welding simulation |
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