A ZERO-RIPPLE OUTPUT-CURRENT HIGH-GAIN BOOST CONVERTER WITH COUPLED INDUCTANCE

Rong Desheng; Wang Ning; Sun Xuanjin

doi:10.19912/j.0254-0096.tynxb.2020-0675

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (4) : 129-136. DOI: 10.19912/j.0254-0096.tynxb.2020-0675

Topics on Key Technologies for Safety of Electrochemical Energy Storage Systems and Echelon Utilization of Decommissioned Power Batteries

A ZERO-RIPPLE OUTPUT-CURRENT HIGH-GAIN BOOST CONVERTER WITH COUPLED INDUCTANCE

Rong Desheng, Wang Ning, Sun Xuanjin

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Abstract

In order to solve the disadvantages of traditional DC-DC converters such as low gain and high voltage stress, through research, based on the traditional Boost converter, adding a C-L-D voltage doubler unit and introducing a coupled inductor voltage doubler structure, a zero-ripple output-current high-step-up converter is proposed. The diode-capacitor is not only used as a boost branch, but also as a passive clamping branch to absorb leakage inductance energy of coupled inductance, while reducing the stacking of devices to reduce costs. In addition, the separate circuit formed by the capacitor and the output inductance makes the output current not only continuous but also has zero ripple characteristics.This paper analyzed the operating principle and performance of the converter, then made the parameter design for the proposed converter, and compared the performance of different converter systems. At last, this paper built prototype circuit to verify the correctness of the theoretical analysis.

Key words

high gain / coupled inductor / Boost converter / leakage inductance / zero ripple / passive clamp

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Rong Desheng, Wang Ning, Sun Xuanjin. A ZERO-RIPPLE OUTPUT-CURRENT HIGH-GAIN BOOST CONVERTER WITH COUPLED INDUCTANCE[J]. Acta Energiae Solaris Sinica. 2022, 43(4): 129-136 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0675

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