NOVEL COUPLED INDUCTOR HIGH-GAIN DC-DC CONVERTER

Yuan Chenggong; Zhang Min; Xue Pengfei; Ye Ruiming

doi:10.19912/j.0254-0096.tynxb.2021-1526

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (4) : 448-455. DOI: 10.19912/j.0254-0096.tynxb.2021-1526

NOVEL COUPLED INDUCTOR HIGH-GAIN DC-DC CONVERTER

Yuan Chenggong, Zhang Min, Xue Pengfei, Ye Ruiming

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Abstract

A novel high-gain DC-DC converter with coupled inductor is designed to satisfy the high-gain DC voltage output required by the new energy grid-connected bus. A coupled circuits doubling voltage unit is introduced to adjust the gain of the converter. The leakage energy of the coupled inductor is dosorbed through the clamping circuit to reduce the voltage spike when the switching device is working so that to improve the efficiency of the converter. The working principle and modes are analyzed, and the device stress and gain are deduced by mathematical formula. Compared with other three typical converters, the feasibility and effectiveness of the new high-gain DC-DC converter with coupled inductor are verified by theory and experiments.

Key words

DC-DC converter / coupled circuit / gain regulation / doubling voltage unit / clamping loop

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Yuan Chenggong, Zhang Min, Xue Pengfei, Ye Ruiming. NOVEL COUPLED INDUCTOR HIGH-GAIN DC-DC CONVERTER[J]. Acta Energiae Solaris Sinica. 2023, 44(4): 448-455 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1526

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