Power source for resistance welding machine with increased electromagnetic compatibility
DOI:
https://doi.org/10.31498/2225-6733.35.2017.125608Keywords:
resistance welding machine, power supply, three-to-one-phase converter, voltage limiterAbstract
The aim of the work is to develop a power source for a resistance welding machine with improved technical and economic properties. Based on the analysis of existing circuit topologies of three-phase power supplies of resistance welding machines, a new circuit topology of the power supply based on the use of a direct matrix converter is proposed. Transistor-diode circuits are used as power switches in the developed power supply. Each switch consists of a transistor and four diodes. This topology makes it possible to reduce the cost of the supply, and to simplify its control system. To solve the problem of the energy dissipation of the leakage field of a transformer when the polarity of the output voltage is changed, due to the fact that the converter is non-recuperative, the authors proposed an original scheme of a non-dissipative quasi-resonant voltage limiter. It consists of a series-connected capacitor and a bi-directional switch. Its application results in power losses reduction. Switch control algorithms have been developed that make it possible to ensure electromagnetic compatibility of the source with the network and to increase its power factorReferences
Список использованных источников:
Электромагнитная совместимость источников питания сварочной дуги / И.В. Пентегов, С.В. Рымар, А.М. Жерносеков, В.Н. Сидорец // Електротехніка і електромеханіка. – 2012. – № 3. – С. 34-40.
Поліпшення електромагнітної сумісності джерел живлення для систем контактного зварювання / П.С. Сафронов, Ю.В. Бондаренко, О.Ф. Бондаренко, В.М. Сидорець, Д.В. Кучеренко // Технічна електродинаміка. – 2014. – № 5. – С. 89-91.
Pismenny A.A. Improvement of Power Efficiency of Machines for Resistance Spot Welding by Longitudinal Compensation of Reactive Power / А.А. Pismenny // The Paton Welding Journal. – 2014. – № 1. – С. 25-29.
Podnebennaya S.К. On the problem of providing electromagnetic compatibility of power sources of resistance welding machines with electric mains / S.K. Podnebennaya, V.V. Burlaka, S.V. Gulakov // The Paton Welding Journal. – 2016. – № 12. – С. 50-54. – Mode of access: DOI: 10.15407/tpwj2016.12.09.
Saleem J. Power Electronics for Resistance Spot Welding Equipment: thesis work for the de-gree of Licentiate of Technology / J. Saleem. – Sundsvall, 2012. – 42 p.
Wagner M. Efficiency improvements for high frequency resistance spot welding / M. Wagner, S. Kolb // Proceedings of 15th European Conference on Power Electronics and Applications (EPE). – Lille, France, 2013. – Pp. 1-9. – Mode of access: DOI: 10.1109/EPE.2013.6634720.
References:
Pentegov I.V., Rymar S.V., Zhernosekov A.M., Sidorets V.N. Elektromagnitnaia sovmestimost' istochnikov pitaniia svarochnoi dugi [Electromagnetic compatibility of arc welding power sources]. Elektrotekhnika i Elektromekhanika – Electrical Engineering & Electromechanics, 2012, no.3, pp. 34-40. (Rus.)
Safronov P.S., Bondarenko Yu.V., Bondarenko O.F., Sidorets V.N., Kucherenko D.V. Polіpshennia elektromagnіtnoї sumіsnostі dzherel zhivlennia dlia sistem kontaktnogo zvariuvannia [Increase of Electromagnetic Compatibility of Power Supplies for Resistance Welding]. Tekhnichna Elektrodynamika – Technical Electrodynamics, 2014, no.5, pp. 89-91. (Ukr.)
Pismenny A.A. Improvement of Power Efficiency of Machines for Resistance Spot Welding by Longitudinal Compensation of Reactive Power. The Paton Welding Journal, 2014, no.1, pp.25-29.
Podnebennaya, S.K., Burlaka, V.V., Gulakov, S.V. On the problem of providing electromag-netic compatibility of power sources of resistance welding machines with electric mains. The Paton Welding Journal, 2016, no.12, pp.50-54. doi: 10.15407/tpwj2016.12.09.
Saleem J. Power Electronics for Resistance Spot Welding Equipment. Thesis work for the degree of Licentiate of Technology. Sundsvall, 2012. 42 p.
Wagner, M., Kolb, S. Efficiency improvements for high frequency resistance spot welding. Proceedings of 15th European Conference on Power Electronics and Applications (EPE), Lille, France, 2013, pp. 1-9. doi: 10.1109/EPE.2013.6634720.
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