A Y-SOURCE NETWORK INTEGRATED HIGH VOLTAGE STEP-UP DC-DC CONVERTER

Zhang Min; Zhou Mingzhu; Wei Zhengyi; Guo Shuo; Zhu Fengqi; Ding Xinping

doi:10.19912/j.0254-0096.tynxb.2021-0339

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (10) : 499-506. DOI: 10.19912/j.0254-0096.tynxb.2021-0339

A Y-SOURCE NETWORK INTEGRATED HIGH VOLTAGE STEP-UP DC-DC CONVERTER

Zhang Min¹, Zhou Mingzhu¹, Wei Zhengyi¹, Guo Shuo¹, Zhu Fengqi¹, Ding Xinping²

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Abstract

This paper presents a Y-source network integrated high voltage step-up DC-DC converter. Using the Y-branch reasonably, the turn ratio of one winding is greater than 1 and the turn ratio of the other winding is less than 1. Selecting the appropriate turn ratio combination can achieve higher voltage gain than that of the traditional coupling inductance. While realizing the purpose of high voltage increase, the voltage stress of the switch is reduced. The proposed converter has the advantages of continuous input current and small input current ripple, which is conducive to the application of battery, fuel cell and photovoltaic panel. The added passive clamping structure can clamp the voltage peak to a lower capacitor voltage when the switch is turned off, which improves the efficiency and reduces the influence of electromagnetic coupling of the converter. The zero current bias of coupling inductor is realized, which is convenient for the selection of small core volume and low core loss. In this paper, the working principle, characteristics and parameter design of the proposed converter are described in detail. A 200 W 28 V input and 380 V output prototype is built to verify the feasibility of the proposed converter.

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Zhang Min, Zhou Mingzhu, Wei Zhengyi, Guo Shuo, Zhu Fengqi, Ding Xinping. A Y-SOURCE NETWORK INTEGRATED HIGH VOLTAGE STEP-UP DC-DC CONVERTER[J]. Acta Energiae Solaris Sinica. 2022, 43(10): 499-506 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0339

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