Enhanced Voltage Balancing Algorithm and Implementation of a Single-Phase Modular Multilevel Converter for Power Electronics Applications

Valentine Obiora; Wenzhi Zhou; Wissam Jamal; Chitta Saha; Soroush Faramehr; Petar Igic

doi:10.3390/machines13100955

Enhanced Voltage Balancing Algorithm and Implementation of a Single-Phase Modular Multilevel Converter for Power Electronics Applications

Valentine Obiora^* (Corresponding / Lead Author)
, Wenzhi Zhou
, Wissam Jamal
, Chitta Saha (Corresponding / Lead Author)
, Soroush Faramehr
, Petar Igic

^*Corresponding author for this work

Department of Engineering

Coventry University

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents an innovative primary control strategy for a modular multilevel converter aimed at enhancing reliability and dynamic performance for power electronics applications. The proposed method utilises interactive modelling tools, including MATLAB Simulink (2022b) for algorithm design and Typhoon HIL (2023.2) for real-time validation. The circuit design and component analysis were carried out using Proteus Design Suite (v8.17) and LTSpice (v17) to optimise the hardware implementation. A power hardware-in-the-loop experimental test setup was built to demonstrate the robustness and adaptability of the control algorithm under fixed load conditions. The simulation results were compared and verified against the experimental data. Additionally, the proposed control strategy was successfully validated through experiments, demonstrating its effectiveness in simplifying control development through efficient co-simulation.

Original language	English
Journal	Machines
Volume	13
Issue number	10
DOIs	https://doi.org/10.3390/machines13100955
Publication status	Published (VoR) - 16 Oct 2025

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10.3390/machines13100955Licence: CC BY

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AU - Obiora, Valentine

AU - Zhou, Wenzhi

AU - Jamal, Wissam

AU - Saha, Chitta

AU - Faramehr, Soroush

AU - Igic, Petar

PY - 2025/10/16

Y1 - 2025/10/16

N2 - This paper presents an innovative primary control strategy for a modular multilevel converter aimed at enhancing reliability and dynamic performance for power electronics applications. The proposed method utilises interactive modelling tools, including MATLAB Simulink (2022b) for algorithm design and Typhoon HIL (2023.2) for real-time validation. The circuit design and component analysis were carried out using Proteus Design Suite (v8.17) and LTSpice (v17) to optimise the hardware implementation. A power hardware-in-the-loop experimental test setup was built to demonstrate the robustness and adaptability of the control algorithm under fixed load conditions. The simulation results were compared and verified against the experimental data. Additionally, the proposed control strategy was successfully validated through experiments, demonstrating its effectiveness in simplifying control development through efficient co-simulation.

AB - This paper presents an innovative primary control strategy for a modular multilevel converter aimed at enhancing reliability and dynamic performance for power electronics applications. The proposed method utilises interactive modelling tools, including MATLAB Simulink (2022b) for algorithm design and Typhoon HIL (2023.2) for real-time validation. The circuit design and component analysis were carried out using Proteus Design Suite (v8.17) and LTSpice (v17) to optimise the hardware implementation. A power hardware-in-the-loop experimental test setup was built to demonstrate the robustness and adaptability of the control algorithm under fixed load conditions. The simulation results were compared and verified against the experimental data. Additionally, the proposed control strategy was successfully validated through experiments, demonstrating its effectiveness in simplifying control development through efficient co-simulation.

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Enhanced Voltage Balancing Algorithm and Implementation of a Single-Phase Modular Multilevel Converter for Power Electronics Applications

Abstract

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