Design, analysis and testing of three-phase isolated SiC-based high current DC-DC converter for arc welding power supply

被引：0

作者：

Marneni, Anil ^{[1
]}

Babu, N. ^{[2
]}

Subramaniam, Senthil Kumar ^{[1
]}

Murugesan, Pravin ^{[1
]}

Prakash, J. Jude ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Elect & Elect Engn, Tiruchirappalli 620015, Tamil Nadu, India

[2] JJ Coll Engn & Technol, Dept Elect & Elect Engn, Tiruchirappalli, Tamil Nadu, India

来源：

ELECTRICAL ENGINEERING | 2025年

关键词：

Arc welding; High current converter; Transformer isolation; SiC devices; Variable duty cycle control; FULL BRIDGE; DUTY CYCLE; VOLTAGE;

D O I：

10.1007/s00202-025-03089-5

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The welding industry needs compatible and highly energy-efficient power sources so that they can be easily installed at the welding spots and used very effectively. In this paper, a Three-phase Isolated High Current DC-DC Converter (3 phi-IHCC) using SiC devices, along with a phase Power Factor Correction (PFC) rectifier is proposed as a Welding Power Source Converter (WPSC) for industrial welding applications. High-frequency operation guarantees the reduced size and weight of reactive elements. Circulating currents and quality of input power supply are the parameters to design the proposed WPSC. A natural Zero Voltage Switching (ZVS) can be achieved by providing dead time between the same leg switches of 3 phi-IHCC. A dual-loop controller has been applied for WPSC to limit the welding current and analyze the steady state and transient behavior of the converter has been analyzed. Constant Voltage (CV) and Rising characteristics have been studied by varying the arc length/welding current of WPSC. A prototype is fabricated for WPSC rated at 200 A, 6 kW, and tested with Metal Inert Gas (MIG) based arc welding. The experimental results confirm the usefulness of the proposed converter for various arc welding processes.

引用

页数：16

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