DOI: 10.17586/2226-1494-2018-18-4-700-703


CONTROL LAW DESIGN FOR FULL-BRIDGE CONVERTER WITH SOFT COMMUTATION BASED ON FREQUENCY VARIATION OF TRANSISTORS SWITCHING

S. A. Alexandrova, A. P. Baev, N. A. Nikolaev, O. V. Slita


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Article in Russian

For citation: Alexandrova S.A., Baev A.P., Nikolaev N.A., Slita O.V. Control law design for full-bridge converter with soft commutation based on frequency variation of transistors switching. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2018, vol. 18, no. 4, pp. 700–703 (in Russian). doi: 10.17586/2226-1494-2018-18-4-700-703

Abstract

A method of pulse-width control of the high power full-bridge converter with widely varied supply voltage is proposed. The method is based on the carrier frequency variation and is implemented as proportional-integral controller with adjustable parameters. The proposed method allows improving dynamic characteristics of the system and limiting of maximum current commuted by transistors. The proposed control law allows receiving desired load voltage.


Keywords: full-bridge inverter, soft commutation, pulse-width control, proportional-integral controller with adjustable parameters, transformer leakage inductance

Acknowledgements. This work was supported by the Government of the Russian Federation (grant 08-08) and the Ministry of Education and Science of the Russian Federation (project 14.Z50.31.0031).

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