Research on The Step Form Selective Harmonic Elimination Technique of Cascaded H Bridge Converter

DOI

10.2991/mmebc-16.2016.263How to use a DOI?

Keywords

non-linear harmonic elimination equation , initial value setting , modulation ratio amplitude range , power balance control

Abstract

In this paper, a simple and accurate empirical formula is adopted to establish an improved initial value setting model , and a relatively complete initial value setting method is obtained.We use a test search model with equal step size to determine the modulation ratio amplitude range m that has a solution to the nonlinear harmonic elimination equation in a certain number of units.Based on the step size search model, we analyze the inclusion relation of Switching angles and the improvement effect of output voltage waveform by the increasing of the number of units when the m is specified.We obtain that the modulation ratio amplitude range m has a more reliable solution. The Total Harmonics Distortion is decreased with the increasing of , which represents the harmonic removing effects is good. And a feasible scheme can be given in the unit power balance optimal switching control strategy. The model is general and can be extended to harmonic elimination technique in practical engineering.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ling Wang
AU  - Zhenyuan Qin
AU  - Bin Zhang
PY  - 2016/06
DA  - 2016/06
TI  - Research on The Step Form Selective Harmonic Elimination Technique of Cascaded H Bridge Converter
BT  - Proceedings of the 2016 6th International Conference on Machinery, Materials, Environment, Biotechnology and Computer
PB  - Atlantis Press
SP  - 1288
EP  - 1292
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmebc-16.2016.263
DO  - 10.2991/mmebc-16.2016.263
ID  - Wang2016/06
ER  -