A multilevel boost DC-DC converter with MPPT algorithm for the rooftop PV system of the urban railway Nhon - Hanoi Station

Tran Hung  Cuong; An Thi Hoai Thu  Anh

doi:10.6180/jase.202511_28(11).0004

A multilevel boost DC-DC converter with MPPT algorithm for the rooftop PV system of the urban railway Nhon - Hanoi Station

Tran Hung Cuong¹ and An Thi Hoai Thu Anh²This email address is being protected from spambots. You need JavaScript enabled to view it.

¹Faculty of Electrical & Electronics Engineering, Thuyloi University, Vietnam

²Department of Electrical Engineering, University of Transport and Communications, Vietnam

Received: November 29, 2023
Accepted: August 15, 2024
Publication Date: February 28, 2025

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202511_28(11).0004

Photovoltaic generators constantly change their maximum power point (MPP) because solar radiation and temperature at different times of the day are always different. The boost DC-DC converter used in energy conversion is controlled when solar radiation and environmental temperature changes are complex. These difficulties make it challenging to design control laws. Fast and reliable step-up DC-DC converters face many obstacles when applied in the field of high-capacity urban trains, causing the current quality of the conversion process to be limited. This paper proposes a multilevel boost DC-DC converter based on MMC configuration, applying the PWM modulation method and INC maximum power point tracking (MPPT) algorithm. MMC boost DC-DC converter can provide an N times conversion ratio and has a much lower operating frequency than conventional Boost Converter. The process of evaluating the effectiveness of the proposed converter configuration and the algorithm is performed on Matlab/Simulink software, and the output parameters of the conversion process are compared with a conventional Boost DC-DC converter based on published analyses.

Keywords: MaximumPowerPoint Tracking (MPPT) algorithm; Incremental Conductance (INC), Modular Multilevel Converter (MMC), Boost DC-DC converter

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