LCL-T Resonant Converter Based on Dual Active Bridge Topology in Solar Energy Applications

Authors

  • Alexander Vladimirovich Osipov TUSUR, Tomsk, Russia
  • Yury Alexandrovich Shinyakov TUSUR 40 Lenina Str, Tomsk, 634050, Russia
  • Vadim Nikolaevich Shkolniy Academician M.F. Reshetnev Information Satellite Systems, Zheleznogorsk, Krasnoyarsk region, Russia
  • Michael Sergeevich Sakharov TUSUR, Tomsk, Russia

Keywords:

Spacecraft power supply system, Resonant converters, Bidirectional dual active bridge, LCL resonant converter, ZVS, ZCS.

Abstract

Resonant LCL-T converter can operate as stable voltage source, being fed from current, for instance, the photovoltaic battery. It is shown that LCL-T resonant tank has intrinsic ability to convert stable AC current into stable AC voltage thus parametrically regulating output voltage at a fixed value. This mode of operation is made possible by the use of active (synchronous) rectifier to recoup energy from the output back to the LCL-T resonant tank. Basic characteristics of resonant LCL-T converter regulated by phase shift between inverter and rectifier regardless of a solar battery current drift have been defined. It is shown that phase control guarantees 0 voltage and 0 current on switching; however, turn-off current could be substantial. Calculations and assumptions made in this study have been confirmed by simulation and hardware prototype.

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Published

2017-04-24

Issue

Vol. 9 No. 2 (2017): Abr./Jun. 2017

Section

Original Papers

License

This work is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0. Authors are free to Share (copy and redistribute the material in any medium or format) and Adapt (remix, transform, and build upon the material for any purpose, even commercially). JATM allow the authors to retain publishing rights without restrictions.