Transformerless High Step-Up DC-DC Converters with Switched-Capacitor Network

Author:

Duong Truong-Duy,Nguyen Minh-KhaiORCID,Tran Tan-TaiORCID,Lim Young-CheolORCID,Choi Joon-Ho

Abstract

High-voltage gain conversion is necessary for several applications, especially for low voltage renewable source applications. In order to achieve a high-voltage gain, the presented paper proposes a class of transformerless DC-DC converters based on three switched-capacitor networks. The proposed converters have the following characteristics: reduced voltage stress on the capacitors and power devices; obtained high voltage gain with small duty cycle; and reduced conduction losses in the power switches. To verify the operation principle of the proposed converters, the detailed analysis in different conditions of the proposed converters and a comparison considering existing topologies are also discussed in the paper. Moreover, the parameter selection and controller design for the converters are determined. Finally, to reconfirm the theoretical analysis, both the simulation and experimental results taken from a 400 W prototype operating at 60 kHz are given.

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering

Cited by 20 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. New High Boost DC-DC Converter for Renewable Energy Conversion;2024 Tenth International Conference on Communications and Electronics (ICCE);2024-07-31

2. Enhanced Step-up DC-DC Converter for Next-Generation Sustainable Energy Application;Journal of Electrical Engineering & Technology;2024-04-07

3. An Isolated High Step-down DC–DC Converter with Current Doubler Rectifier;2023 12th International Conference on Control, Automation and Information Sciences (ICCAIS);2023-11-27

4. A Single-Stage Bimodal Transformerless Inverter with Common-Ground and Buck-Boost Features;Electronics;2023-01-02

5. A Novel Isolated DC–DC Converter for High Step-Down Applications;IEEE Access;2023

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