Field-circuit modelling of an advanced welding transformer with two parallel rectifiers

• Autorzy: Sakhno L. , Sakhno O. , Dubitsky S.

Identyfikatory

DOI

10.1515/aee-2015-0021

• Języki publikacji: EN

Abstrakty

EN

The new topology of three-winding welding transformer is proposed. Each secondary winding is connected in parallel through the separate bridge rectifier to the welding arc. The main feature of the proposed device is parallel working of two secondary windings with different rated voltage. The advantage is nonlinear transformation ratio of current that provides unprecedented power efficiency. The self- and mutual leakage inductances, which are important in power conversion, are calculated by 2D FEA model. The operational current of the device is modelled numerically via P-Spice simulator. The proposed topology is up to 30% more power effective than conventional welding transformer provided that the leakage inductances of primary and secondary windings are correctly fitted. This transformer is used for manual arc welding.

Słowa kluczowe

EN

Arc welding; double-bridge rectifier; leakage inductance; three-winding transformer; transformer equivalent circuit

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2015
• Tom: Vol. 64, nr 2
• Strony: 249--257
• Opis fizyczny: Bibliogr. 7 poz., wykr., wz.

Twórcy

autor

Sakhno L.

• St. Petersburg State Polytechnic University, Department of Theoretical Electroengineering Polytechnicheskaya 29, St. Petersburg, 190251, Russia

autor

Sakhno O.

• St. Petersburg State Polytechnic University, Department of Theoretical Electroengineering Polytechnicheskaya 29, St. Petersburg, 190251, Russia

autor

Dubitsky S.

• Tor Ltd, the developer of QuickField FEA Software Moskovsky pr. 22, lit. T, St. Petersburg 190013, Russia

Bibliografia

• [1] Sakhno L.I., An investigations of double-bridge rectifiers with steeply falling external characteristics for supplying an electric arc. Electrical Technology Russia 1: 96-104 (2002).
• [2] Sakhno L.I., Two-bridge welding rectifiers with single-phase transformers with a three-rod magnetic system. Welding International l7(7): 565-569 (2003).
• [3] Del Vecchio R.M. et al., Transformer design principles: with applications to core-form power transformers. CRC press (2010).
• [4] Margueron X., Keradec J-P., Design of equivalent circuits and characterization strategy for n-input coupled inductors. IEEE Transactions on industry applications 43(1): 14-22 (2007).
• [5] Margueron X., Keradec J-P., Identifying the magnetic part of the equivalent circui of n-winding transformers. IEEE Transactions on instrumentation and measurement 56(1): 146-152 (2007).
• [6] Claycomb J.R., Applied Electromagnetics Using QuickField and MATLAB. Laxmi Publications, Ltd. (2010).
• [7] Vladimirescu A., The SPICE Book. John Wiley & Sons, Inc., First Edition (1994).