Analysis of the Phase-Shifted Carrier Modulation for Modular Multilevel Converters

Authors

  • M Aparna  PG Student, Department of Electrical and Electronics Engineering, Sai Rajeswari Institute of Technology, Kadapa, Andhra Pradesh, India
  • C. Ashok Kumar   Assistant Professor, Department of Electrical and Electronics Engineering, Sai Rajeswari Institute of Technology, Kadapa, Andhra Pradesh, India

Keywords:

Fourier series, modular multilevel converter (MMC), phase-shifted carrier (PSC), pulse width modulation (PWM).

Abstract

The Modular multilevel converter (MMC) is a rising topology for high-Power applications and is considered as the improvement pattern of the high-voltage power converters. In this paper, general implementation of the phase-shifted carrier (PSC) modulation with a capacitor voltage balancing method for MMC is first presented. At that point, the numerical investigation of PSC modulation for MMC is performed to distinguish the PWM harmonic characteristics of the output voltage and the circulating current. Additionally, impact of the carrier displacement angle between the upper and lower arms on these harmonics is likewise examined. Utilizing this Analysis, the optimum displacement angels are indicated for the output voltage harmonics minimization and the circulating current harmonic cancellation, respectively. The symphonious elements of the line-to-line voltage and the dc-link current are additionally researched. In addition, an expansion of the PSC regulation for MMC with full-connect submodules is likewise proposed which can build the identical switching frequency of the output voltage and circulating current by two times contrasted and the customary MMC.

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2018-03-30

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Volume 4, Issue 1, January-February-2018

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Research Articles

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How to Cite

[1]
M Aparna, C. Ashok Kumar , " Analysis of the Phase-Shifted Carrier Modulation for Modular Multilevel Converters, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 4, Issue 1, pp.285-295, January-February-2018.