| Correction factor based double model fuzzy logic control strategy of arc voltage in pulsed MIG welding |
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| 作者姓名： | 吴开源 黄石生 蒙永民 |
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| 作者单位： | College of Mechanical Engineering，South China University of Technology，Guangzhou，510640，College of Mechanical Engineering，South China University of Technology，Guangzhou，510640，College of Mechanical Engineering，South China University of Technology，Guangzhou，510640 |
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| 基金项目： | 国家自然科学基金，Guangdong Provincial Natural Science Foundation |
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| 摘 要： | 0Introduction Improvedstabilityofweldingarclengthhasbecome increasinglyimportantforhigherweldingquality.Thesta bilityofweldingarclengthisdependentontwoaspects: oneistheintrinsicself adjustmentofarc,anotheristhe effectoftheweldingconditionparametersandthe…
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| 关 键 词： | 脉冲MIG焊接 弧电压调整器 模糊逻辑控制 电弧焊 |
Correction factor based double model fuzzy logic control strategy of arc voltage in pulsed MIG welding |
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| WU Kaiyuan,Huang Shisheng,Meng Yongmin.Correction factor based double model fuzzy logic control strategy of arc voltage in pulsed MIG welding[J].China Welding,2005,14(1):63-67. |
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| Authors: | WU Kaiyuan Huang Shisheng Meng Yongmin |
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| Abstract: | According to the feature of arc voltage control in welding steel using pulsed MIG welding, a correction factor based double model fuzzy logic controller (FLC) was developed to realize the arc voltage control by means of arc voltage feedback.When the error of peak arc voltage was great, a coarse adjusting fuzzy logic control rules with correction factor was designed,in the controller, the peak arc voltage was controlled by the wire feeding speed by means of arc voltage feedback. When the error of peak arc voltage was small, a fine adjusting fuzzy logic control rules with correction factor was designed, in this controller, the peak arc voltage was controlled by the background time by means of arc voltage feedback. The FLC was realized in a Look-Up Table ( LUT) method. Experiments had been carried out aiming at implementing the control strategy to control the arc length change in welding process. Experimental results show that the controller proposed enables the consistency of arc length and the stabolity of arc voltage and welding process to be achieved in pulsed MIG welding process. |
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| Keywords: | pulsed MIG welding arc voltage adjustment fuzzy logic control |
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