Application of Double Fourier Series for Analyzing Harmonics of a Modular Multilevel Converter

Ngoc-Thinh Quach, Sang Heon Chae, Min-Hyeok Kang, Dong Wan Kim, Seung Hun Ko and Eel-Hwan Kim




This paper presents an application of double Fourier series (DFS) algorithm for analyzing harmonics of a modular multilevel converter (MMC). By considering the effect of arm inductor, the application of DFS for calculating harmonics in the MMC is made. The DFS is then verified by comparing with simulation results used the fast Fourier transform (FFT) algorithm. Subsequently, the DFS will be used to analyze the effect of number of output voltage levels to the distribution of harmonics and total harmonic distortion (THD) in the MMC. The analytical results are performed in the Matlab programming in order to verify the theoretical analysis.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 15)
Pages: 267-270 Date of Publication: 2017/04/25
ISSN: 2172-038X Date of Current Version:
REF: 289-17 Issue Date: April 2017
DOI:10.24084/repqj15.289 Publisher: EA4EPQ

Authors and affiliations

Ngoc-Thinh Quach(1), Sang Heon Chae(1), Min-Hyeok Kang(1), Dong Wan Kim(2), Seung Hun Ko(2) and Eel-Hwan Kim(1)
1. Department of Electrical Engineering. Jeju National University. Republic of Korea
2. Research & Development Center, Jeju Energy Corporation. Republic of Korea

Key word

Double Fourier series, Fast Fourier transform, Harmonic analysis, Modular multilevel converter, Total harmonic distortion


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