Modeling and estimating for external characteristic of welding power source |
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Authors: | Zhu Zhengqiang Chen Ligong Xu Jianning Ni Chunzhen He Defu |
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Affiliation: | (1) School of Electromechanical Engineering, Nanchang University, Nanchang, 330029, P.R. China;(2) School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200030, P.R. China |
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Abstract: | A mathematical modeling method, theory and process based on measured data from the dropping external characteristic of a thyristor
rectifier for arc welding power source have been introduced in this paper. The instance shows the model structure obtained
with this method is simple and it can accurately denote the U–I characteristic for welding power. This model can also predict
the self-adjusting performance of electric current and short circuit current parameters on different given conditions. This
method can not only handle the post-process problem in measuring data, but it can make the limited measuring message be a
more effective application. |
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Keywords: | External characteristic Mathematical modeling Power source for electric welding machine Regression |
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