Operation of Three-Phase Resonant Converter in Single- Phase AC-to-DC Applications

نویسندگان

  • H. M. Suryawanshi
  • S. S. Tanavade
  • K. L. Thakre
  • M. A. Chaudhari
چکیده

A single-phase ac-to-dc converter using threephase modified series-parallel resonant converter is proposed in this paper. The three-phase resonant converter is analyzed using Fourier series approach. The design curves for a resonant converter of 2.5 kW rating are plotted. The converter components are selected based on the design curves. The converter is simulated for different load conditions using PSIM. A laboratory prototype of the converter is built. It is operated at 290 kHz on full load condition. The variable frequency control is implemented using digital signal processor for the output voltage regulation. The converter performance is verified using the simulation and experimental results. The use of three-phase high frequency inverter reduces the filtering requirements, peak component stresses on the resonant components and peak inverter output current. The proposed converter maintains excellent input line power factor without any active control of ac input line current. Apart from this, it requires narrow variation in switching frequency for its output voltage regulation.

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تاریخ انتشار 2010