Work

A high step-up double-dual-boost converter with continuous output current

Year: 2025

Type: article

Abstract: Although recently proposed double-dual-boost (DDB) DC-DC converters can be used in various applications, they are unable to achieve a higher voltage gain than the conventional DDB converter and typically suffer from a discontinuous output current. This paper presents a non-isolated DDB converter specifically designed to address these limitations, offering continuous output current and high step-up voltage gain. The proposed converter retains the advantages of the conventional DDB converter while employing only two active devices. Moreover, it features low input current ripple, continuous input and output currents, and a voltage gain equal to the combined gains of a quadratic boost converter and a quadratic buck-boost converter. Maintaining non-pulsating input and output currents reduces the risk of damaging renewable energy sources connected to the converter. Therefore, the proposed converter is a suitable option for fuel cell and photovoltaic applications. To demonstrate the benefits of the proposed converter in terms of current continuity, current ripple, the number of active devices, and voltage gain, a detailed comparison with existing DDB converters is provided. Finally, an experimental prototype of the proposed converter is built to validate its performance.

Source: e-Prime - Advances in Electrical Engineering Electronics and Energy

DOI: 10.1016/j.prime.2025.101047

Authors: Mohammad Lotfi-Nejad, Amir Abbas Aghajani, Hossein Hajisadeghian, Ali Akbar Moti Birjandi, Ehsan Adib

Institutions: Shahid Rajaee Teacher Training University, Isfahan University of Technology

Language: English

Topic: Advanced DC-DC Converters

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $1,400