Journal
IEEE TRANSACTIONS ON POWER ELECTRONICS
Volume 33, Issue 11, Pages 9470-9481Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2017.2788923
Keywords
High efficiency; medium power capacity; minimum number of devices; phase-shift full-bridge series-resonant converter (PSFB-SRC); resonant boost converter
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Funding
- Ministry of Science, ICT and Future Planning (MSIP), Korea, under the ICT Consilience Creative Program [IITP-R0346-16-1007]
- National Research Foundation of Korea (NRF) grant - MSIP [2017R1C1B1003084]
- NRF [2017K2A9A1A01092616]
- Institute for Information & Communication Technology Planning & Evaluation (IITP), Republic of Korea [2011-1-00783-007] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2017R1C1B1003084] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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To develop thermoelectric power conditioning systems that are highly efficient over a wide range of input voltages and support medium-rated power, this paper introduces a hybrid resonant dc/dc converter using an active voltage-doubler rectifier. When the input voltage is higher than the preset nominal input voltage, the converter operates in the phase-shift full-bridge series-resonant converter mode, in which it achieves high efficiency by softly switching the primary-side switches and reducing the conduction loss. When the input voltage is lower than the nominal one, it operates in the resonant boost mode that boosts the resonant inductor current. By using the active voltage-doubler rectifier on the secondary side of the converter, we can build the converter with less number of active components. As a result, the proposed converter achieves, at low cost, high boost-ratio and high efficiency over a wide range of input voltages. A detailed analysis of the converter operation is presented along with the design procedure. At 35-55V, a 600-W/360-V prototype of the proposed converter has been built and tested to demonstrate its effectiveness.
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