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Article

A Novel Control Approach to Hybrid Multilevel Inverter for High-Power Applications

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Department of Electrical Engineering, University of Engineering and Technology, Mardan 23200, Pakistan
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Department of Electrical and Computer Engineering, COMSATS University Islamabad, Islamabad 44000, Pakistan
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Center of Intelligent Systems and Networks Research, University of Engineering and Technology, Peshawar 25000, Pakistan
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Department of Electrical Engineering, University of Engineering and Technology, Peshawar 25000, Pakistan
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Department of Computer Software Engineering, University of Engineering and Technology, Mardan 23200, Pakistan
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Faculty of Electrical Engineering, Ostfold University College, 1757 Halden, Norway
*
Authors to whom correspondence should be addressed.
Academic Editors: Francisco Gordillo and Francisco Salas Gómez
Energies 2021, 14(15), 4563; https://doi.org/10.3390/en14154563
Received: 7 June 2021 / Revised: 15 July 2021 / Accepted: 21 July 2021 / Published: 28 July 2021
(This article belongs to the Special Issue Dynamic Modelling and Control in Multilevel Converters)
This paper proposes a hybrid control scheme for a newly devised hybrid multilevel inverter (HMLI) topology. The circuit configuration of HMLI is comprised of a cascaded converter module (CCM), connected in series with an H-bridge converter. Initially, a finite set model predictive control (FS-MPC) is adopted as a control scheme, and theoretical analysis is carried out in MATLAB/Simulink. Later, in the real-time implementation of the HMLI topology, a hybrid control scheme which is a variant of the FS-MPC method has been proposed. The proposed control method is computationally efficient and therefore has been employed to the HMLI topology to mitigate the high-frequency switching limitation of the conventional MPC. Moreover, a comparative analysis is carried to illustrate the advantages of the proposed work that includes low switching losses, higher efficiency, and improved total harmonic distortion (THD) in output current. The inverter topology and stability of the proposed control method have been validated through simulation results in MATLAB/Simulink environment. Experimental results via low-voltage laboratory prototype have been added and compared to realize the study in practice. View Full-Text
Keywords: multilevel inverter (MLI); model predictive control (MPC); hybrid multilevel inverter multilevel inverter (MLI); model predictive control (MPC); hybrid multilevel inverter
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MDPI and ACS Style

Ali, M.; Hafeez, G.; Farooq, A.; Shafiq, Z.; Ali, F.; Usman, M.; Mihet-Popa, L. A Novel Control Approach to Hybrid Multilevel Inverter for High-Power Applications. Energies 2021, 14, 4563. https://doi.org/10.3390/en14154563

AMA Style

Ali M, Hafeez G, Farooq A, Shafiq Z, Ali F, Usman M, Mihet-Popa L. A Novel Control Approach to Hybrid Multilevel Inverter for High-Power Applications. Energies. 2021; 14(15):4563. https://doi.org/10.3390/en14154563

Chicago/Turabian Style

Ali, Muhammad, Ghulam Hafeez, Ajmal Farooq, Zeeshan Shafiq, Faheem Ali, Muhammad Usman, and Lucian Mihet-Popa. 2021. "A Novel Control Approach to Hybrid Multilevel Inverter for High-Power Applications" Energies 14, no. 15: 4563. https://doi.org/10.3390/en14154563

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