Work

Voltage Control of 3-Phase 4-Leg Multilevel Inverter with Minimum Number of Switching States

Year: 2025

Type: article

Abstract: This paper uses a finite control set (FCS) model predictive control (MPC) technique to control the output voltage of a 3-phase 4-leg multilevel inverter with a minimum number of switching states to supply a balanced, unbalanced, or nonlinear load. Good results are obtained when using this technique for a flying-capacitor (FC) multilevel inverter with an output that includes a filter made of capacitors and inductors. In this method, 19 switching states are used instead of 81 switching states in classical inverters, reducing the time required to reach the optimal solution in the cost function (g). The cost function calculates the minimum error between the output and reference voltage by selecting the optimal switching state for driving all inverter transistors. This technique can be applied to other types of multilevel inverters without considering the type of load used or needing to adjust the controller parameters. The inverter is designed for powering the 3-phase loads by separately generating three output voltages from the fourth leg using MPC

Source: Journal of Engineering and Sustainable Development

DOI: 10.31272/jeasd.2825

Authors: Firas AL-Fadhli, Ammar Ibrahim Majeed, Mohammad Khazaal, Benmessaoud Mohammed Tarik

Institutions: Ministry of Higher Education and Scientific Research, Nahrain University, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf

Language: English

Topic: Multilevel Inverters and Converters

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Industry, innovation and infrastructure, Affordable and clean energy

Open Access status: gold

Estimated APC paid: $50