Real-Time Adaptive Selective Harmonic Elimination for Cascaded Full-Bridge Multilevel Inverter

Miguel Vivert, Rafael Diez, Marc Cousineau, Diego Bernal Cobaleda, Diego Patino and Philippe Ladoux
Additional contact information
Miguel Vivert: Carrera de Ingeniería en Electricidad (CIELE), Facultad de Ciencias Aplicada (FICA), Universidad Técnica del Norte, Ibarra 100105, Ecuador
Rafael Diez: Department of Electronics Engineering, Pontificia Universidad Javeriana, Bogota 110231, Colombia
Marc Cousineau: LAPLACE, ENSEEIHT Engineering School, Department of Electronics, Electrical Energy and Automation, University de Toulouse, CNRS, Toulouse-INP, UPS, 3 Rue Charles Camichel, 31071 Toulouse, France
Diego Bernal Cobaleda: Electrical Engineering Department (ESAT) KU Leuven—EnergyVille Diepenbeek, 3001 Genk, Belgium
Diego Patino: Department of Electronics Engineering, Pontificia Universidad Javeriana, Bogota 110231, Colombia
Philippe Ladoux: LAPLACE, ENSEEIHT Engineering School, Department of Electronics, Electrical Energy and Automation, University de Toulouse, CNRS, Toulouse-INP, UPS, 3 Rue Charles Camichel, 31071 Toulouse, France

Energies, 2022, vol. 15, issue 9, 1-15

Abstract: Selective Harmonics Elimination is a high-efficiency modulation method for multilevel inverters that allows handling very high voltage applications. It eliminates the most significant harmonics and fixes the desired fundamental component. The main issue of these techniques is the complex process to obtain the appropriate switching-angles, being necessary to calculate them offline, meaning that if some disturbances occur, the system will not be compensated. This article proposes a real-time selective harmonic elimination for a single-phase cascaded multilevel inverter. The control strategy maintains constant the fundamental component of the output voltage while removing its third, fifth, and seventh order harmonics. The switching-angles are dynamically adapted to compensate for variations in the input voltage and the load. This is done by obtaining a virtual dynamic system using Groebner basis, an adaptation of the Newton-Raphson method, and implementing a digital PI controller into the virtual dynamical model. This adaptive modulation technique is validated experimentally in a 200 W, 9-levels Cascaded Full Bridge Inverter, canceling the harmonics and regulating the fundamental components in all the tests. The developed theory can be adapted or extended for any multilevel inverter modulated by selective harmonic elimination.

Keywords: multilevel inverter; selective harmonic elimination; polynomial transform; newton-raphson method; closed-loop system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/9/2995/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/9/2995/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:9:p:2995-:d:797583

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().