Optimization and control analysis of a multi-phase buck converter utilizing MOSFETs

Kováč, Dobroslav (author), Kováčová, Irena (author)

The study explores the design, optimization, and application of a control strategy tailored for a multiphase buck converter employed to manage energy processing from photovoltaic panel. A control method is proposed to maximize the energy conversion efficiency. It is grounded in a comprehensive examination of the converter switching dynamics, factoring in significant parasitic elements of the circuit and the operational traits of power semiconductor devices, specifically MOSFETs. The method effectiveness and precision are validated by computational simulations and experimental measurements conducted on an actual photovoltaic system utilizing a particular converter type. The method is adaptable to various multi-phase converter configurations and alternative power semiconductor devices.

• Language: English
• Keywords: multi-phase DC-DC power converters, synthesis of optimal control, power measurement, energy efficiency, photovoltaic systems
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FE - Faculty of Electrical Engineering
• Year: 2025
• Number of pages: Str. 135-142
• Numbering: Letn. 92, št. 3
• PID: 20.500.12556/RUL-183353
• UDC: 621.314.2:62-52
• ISSN on article: 0013-5852
• COBISS.SI-ID: 280440323
• Publication date in RUL: 11.06.2026

Record is a part of a journal

• Title: Elektrotehniški vestnik
• Publisher: Strokovna zadruga koncesijoniranih elektrotehnikov, Elektrotehniška zveza Slovenije
• ISSN: 0013-5852
• COBISS.SI-ID: 742916

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Title: Optimizacija in analiza krmiljenja večfaznega pretvornika navzdol s tranzistorji MOSFET

Abstract

Študija obravnava zasnovo, optimizacijo in uporabo krmilne strategije, prilagojene za večfazni pretvornik navzdol, ki se uporablja za upravljanje pretoka energije iz fotonapetostne plošče. Predlagana je krmilna metoda, katere cilj je maksimirati učinkovitost pretvorbe energije. Temelji na temeljiti analizi stikalne dinamike pretvornika, pri čemer so upoštevani pomembni parazitski elementi vezja in obratovalne lastnosti močnostnih polprevodniških komponent, zlasti tranzistorjev MOSFET. Učinkovitost in natančnost metode sta potrjeni s pomočjo računalniških simulacij in eksperimentalnih meritev, izvedenih na dejanskem fotonapetostnem sistemu, ki uporablja določen tip pretvornika. Metoda je prilagojena različnim konfiguracijam večfaznih pretvornikov in alternativnim močnostnim polprevodniškim elementom.

• Keywords: krmilna strategija, fotonapetostna plošča, pretvorba energije, polprevodniki, tranzistorji