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高频逆变弧焊电源叠层母线的设计建模与验证

何亚宁, 熊刚

何亚宁, 熊刚. 高频逆变弧焊电源叠层母线的设计建模与验证[J]. 焊接学报, 2019, 40(9): 104-110. DOI: 10.12073/j.hjxb.2019400244
引用本文: 何亚宁, 熊刚. 高频逆变弧焊电源叠层母线的设计建模与验证[J]. 焊接学报, 2019, 40(9): 104-110. DOI: 10.12073/j.hjxb.2019400244
HE Yaning, XIONG Gang. Design modeling and experimental verifications of the laminated busbar for high frequency arc welding inverter[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(9): 104-110. DOI: 10.12073/j.hjxb.2019400244
Citation: HE Yaning, XIONG Gang. Design modeling and experimental verifications of the laminated busbar for high frequency arc welding inverter[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(9): 104-110. DOI: 10.12073/j.hjxb.2019400244

高频逆变弧焊电源叠层母线的设计建模与验证

基金项目: 四川省2015年第一批省级科技计划项目(2015FX0021)

Design modeling and experimental verifications of the laminated busbar for high frequency arc welding inverter

  • 摘要: 随着开关频率的提高,减小杂散电感成为设计高频逆变弧焊电源的关键要素之一. 针对50 kHz/20 kW逆变弧焊电源DPS-500的需求,设计了集成母线直流电容、软起动电路、IGBT模块、三相整流器模块的叠层母线. 运用ANSYS Q3D进行准静态电磁场的数值计算,提取寄生参数矩阵,建立了叠层母线的多端口电路模型. 基于阻抗谐振法和双脉冲测试法,分别对叠层母线的阻抗频率特性与开关特性进行实测和仿真,并用上述两种方法提取了杂散电感. 结果表明,叠层母线设计的有效性. 仿真与实测对比,从频域和时域证实叠层母线建模的准确性. 最后讨论了误差产生的原因.
    Abstract: With the increase of switching frequency, reducing stray inductance becomes one of the key factors in designing high frequency arc welding inverter. In order to meet the demand of DPS-500 of 50 kHz/20 kW, a laminated busbar was designed, which integrated DC link capacitor, soft start circuit, IGBT module and three-phase rectifier module. The numerical calculation of quasi-static electromagnetic field was carried out using ANSYS Q3D. Parasitic parameter matrices were extracted. The multi-port circuit model of the laminated busbar was built. The impedance vs frequency characteristic and the switching behavior of the laminated busbar was simulated and measured individually based on impedance resonance method and double pulse test method. Stray inductance of the laminated busbar was extracted by two different ways aforementioned. The results showed that the design was valid. The modeling accuracy of the laminated busbar was verified in frequency and temporal-domain by comparing results of simulation and experiment. Finally, the causes of errors was discussed.
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  • 收稿日期:  2018-03-30

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