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Volume 9
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10.3390/en9121091
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Article

A Comparison of Modulation Techniques for Modular Multilevel Converters

by
Miguel Moranchel
*,
Francisco Huerta
,
Inés Sanz
,
Emilio Bueno
and
Francisco J. Rodríguez
Electronics Department, Universidad de Alcalá, Escuela Politécnica, 28805 Alcalá de Henares, Spain
*
Author to whom correspondence should be addressed.
Energies 2016, 9(12), 1091; https://doi.org/10.3390/en9121091
Submission received: 12 September 2016 / Revised: 21 October 2016 / Accepted: 15 December 2016 / Published: 20 December 2016
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Abstract

This work presents a comparison of three different modulation techniques applied to modular multilevel converters (MMCs). The three modulation strategies studied in this paper are the phase-shifted sinusoidal pulse width modulation (PS-SPWM), the space-vector modulation (SVM) and the nearest level modulation (NLM). This paper focuses on analysing the particularities and implementation of each modulation technique. The modulation technique largely defines the generated harmonic content, making this is a key point that must be studied in depth. The paper briefly describes the three modulation techniques and analyses the harmonics generated by each one of the methods. In addition, the paper presents and compares the digital implementation of the three modulation methods in a Field Programmable Gate Array (FPGA). The proposed approaches are validated using a real processing platform and experimentally evaluated in a real high-power six-level MMC.
Keywords: modulation techniques; modular multilevel converter; nearest level modulation; space vector modulation; sinusoidal pulse width modulation modulation techniques; modular multilevel converter; nearest level modulation; space vector modulation; sinusoidal pulse width modulation

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MDPI and ACS Style

Moranchel, M.; Huerta, F.; Sanz, I.; Bueno, E.; Rodríguez, F.J. A Comparison of Modulation Techniques for Modular Multilevel Converters. Energies 2016, 9, 1091. https://doi.org/10.3390/en9121091

AMA Style

Moranchel M, Huerta F, Sanz I, Bueno E, Rodríguez FJ. A Comparison of Modulation Techniques for Modular Multilevel Converters. Energies. 2016; 9(12):1091. https://doi.org/10.3390/en9121091

Chicago/Turabian Style

Moranchel, Miguel, Francisco Huerta, Inés Sanz, Emilio Bueno, and Francisco J. Rodríguez. 2016. "A Comparison of Modulation Techniques for Modular Multilevel Converters" Energies 9, no. 12: 1091. https://doi.org/10.3390/en9121091

APA Style

Moranchel, M., Huerta, F., Sanz, I., Bueno, E., & Rodríguez, F. J. (2016). A Comparison of Modulation Techniques for Modular Multilevel Converters. Energies, 9(12), 1091. https://doi.org/10.3390/en9121091

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