软开关弧焊电源的设计及参数选择(Ⅱ)

杜贤昌; 邓占峰; 孙威威; 白志范; 杜旭昌

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软开关弧焊电源的设计及参数选择(Ⅱ)
杜贤昌¹, 邓占峰², 孙威威³, 白志范⁴, 杜旭昌⁵
1.长春工程学院机械工程系, 长春 130012;2.中国电力科学研究院, 北京 100085;3.光宝电子(东莞)有限公司, 北京 100085;4.吉林大学材料科学与工程学院, 长春 130025;5.莱州市锅炉检验所, 山东莱州 261400

摘要:

在介绍新型LCL(混合谐振结构)谐振软开关弧焊逆变电源主电路原理的基础上,对这种弧焊电源进行了设计,并对电路中主要参数予以了确定。其内容包括并联电感L_p及变压器初级电容C_p的计算、变压器变比及其最大占空比的确定。根据设计的电源参数,对研制的焊接电源进行试验。试验表明,该电源能够较好地实现软开关。从而证明该设计是合理的、有效的。

关键词: 谐振软开关弧焊逆变电源设计参数选择

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Design and parameter selection for soft-switch arc welding power source(Ⅱ)

DU Xian-chang¹, Deng Zhan-feng², SUN Wei-wei³, BAI Zhi-fan⁴, DU Xu-chang⁵

1.Department of Mechanical Engineering, Changchun Institute of Technology, Changchun 130012, China;2.Chinese Academy of Electricity Scientific Research, Beijing 100085, China;3.Guangbao Electron(Dongguan)Limited Company, Beijing 100085, China;4.School of Materials Science and Engineering, Jilin University, Changchun 130025, China;5.Laizhou Boiler Inspection Bureau, Laizhou 261400, Shandong, China

Abstract:

Soft-switching arc welding power source of resonant type of new LCL-type was designed on the basis of the principle of main circuit and the main parameter of the circuit was determined.The contents include calculation for parallel connection inductance LP and the primary capacitance of main transformer,no-load voltage ratio and maximum duty ratio of the transformer.Experiment about the arc welding power source was done in the light of designed parameters.The experimental results indicated that the power source can work well with soft-switch.So the design is reasonable and valid.

Key words: resonant type soft-switch arc welding inverter power source design parameter choice