A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application

Tom Wanjekeche

doi:doi:10.11648/j.ajmse.20170205.13

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A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application

Tom Wanjekeche

Published in American Journal of Management Science and Engineering (Volume 2, Issue 5)

Received: 2 May 2017 Accepted: 13 May 2017 Published: 23 October 2017

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Abstract

Modeling of Cascaded Multilevel converter has put more emphasize on conventional cascaded H- bridge inverter. First a new phase shifted SPWM control algorithm for cascaded NPC/H-bridge inverter is proposed. Its Superior harmonic suppression is verified by comparing its harmonic spectrum with that of the conventional multicarrier approach. For DC- bus capacitor voltage control, a new, balance circuit is proposed. Because of its modularity, it is simple and can be easily incorporated in cascaded inverter model with any number of levels. Feedback controller design is presented with main focus on grid voltage regulation and overall system capacitor voltage balance. The validity of grid interface model and its control strategies is substantially confirmed by the extensive simulation results.

Published in	American Journal of Management Science and Engineering (Volume 2, Issue 5)
DOI	10.11648/j.ajmse.20170205.13
Page(s)	89-105
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Harmonic Content, Cascaded NPC/H-Bridge Inverter, Grid Connected Systems, DC Link Voltage Control

References

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APA Style

Tom Wanjekeche. (2017). A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application. American Journal of Management Science and Engineering, 2(5), 89-105. https://doi.org/10.11648/j.ajmse.20170205.13

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ACS Style

Tom Wanjekeche. A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application. Am. J. Manag. Sci. Eng. 2017, 2(5), 89-105. doi: 10.11648/j.ajmse.20170205.13

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AMA Style

Tom Wanjekeche. A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application. Am J Manag Sci Eng. 2017;2(5):89-105. doi: 10.11648/j.ajmse.20170205.13

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@article{10.11648/j.ajmse.20170205.13,
  author = {Tom Wanjekeche},
  title = {A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application},
  journal = {American Journal of Management Science and Engineering},
  volume = {2},
  number = {5},
  pages = {89-105},
  doi = {10.11648/j.ajmse.20170205.13},
  url = {https://doi.org/10.11648/j.ajmse.20170205.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmse.20170205.13},
  abstract = {Modeling of Cascaded Multilevel converter has put more emphasize on conventional cascaded H- bridge inverter. First a new phase shifted SPWM control algorithm for cascaded NPC/H-bridge inverter is proposed. Its Superior harmonic suppression is verified by comparing its harmonic spectrum with that of the conventional multicarrier approach. For DC- bus capacitor voltage control, a new, balance circuit is proposed. Because of its modularity, it is simple and can be easily incorporated in cascaded inverter model with any number of levels. Feedback controller design is presented with main focus on grid voltage regulation and overall system capacitor voltage balance. The validity of grid interface model and its control strategies is substantially confirmed by the extensive simulation results.},
 year = {2017}
}

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TY  - JOUR
T1  - A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application
AU  - Tom Wanjekeche
Y1  - 2017/10/23
PY  - 2017
N1  - https://doi.org/10.11648/j.ajmse.20170205.13
DO  - 10.11648/j.ajmse.20170205.13
T2  - American Journal of Management Science and Engineering
JF  - American Journal of Management Science and Engineering
JO  - American Journal of Management Science and Engineering
SP  - 89
EP  - 105
PB  - Science Publishing Group
SN  - 2575-1379
UR  - https://doi.org/10.11648/j.ajmse.20170205.13
AB  - Modeling of Cascaded Multilevel converter has put more emphasize on conventional cascaded H- bridge inverter. First a new phase shifted SPWM control algorithm for cascaded NPC/H-bridge inverter is proposed. Its Superior harmonic suppression is verified by comparing its harmonic spectrum with that of the conventional multicarrier approach. For DC- bus capacitor voltage control, a new, balance circuit is proposed. Because of its modularity, it is simple and can be easily incorporated in cascaded inverter model with any number of levels. Feedback controller design is presented with main focus on grid voltage regulation and overall system capacitor voltage balance. The validity of grid interface model and its control strategies is substantially confirmed by the extensive simulation results.
VL  - 2
IS  - 5
ER  -

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Author Information

Tom Wanjekeche

Department of Electrical Engineering, University of Namibia, Ongwediva, Namibia

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APA Style

Tom Wanjekeche. (2017). A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application. American Journal of Management Science and Engineering, 2(5), 89-105. https://doi.org/10.11648/j.ajmse.20170205.13

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ACS Style

Tom Wanjekeche. A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application. Am. J. Manag. Sci. Eng. 2017, 2(5), 89-105. doi: 10.11648/j.ajmse.20170205.13

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AMA Style

Tom Wanjekeche. A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application. Am J Manag Sci Eng. 2017;2(5):89-105. doi: 10.11648/j.ajmse.20170205.13

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@article{10.11648/j.ajmse.20170205.13,
  author = {Tom Wanjekeche},
  title = {A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application},
  journal = {American Journal of Management Science and Engineering},
  volume = {2},
  number = {5},
  pages = {89-105},
  doi = {10.11648/j.ajmse.20170205.13},
  url = {https://doi.org/10.11648/j.ajmse.20170205.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmse.20170205.13},
  abstract = {Modeling of Cascaded Multilevel converter has put more emphasize on conventional cascaded H- bridge inverter. First a new phase shifted SPWM control algorithm for cascaded NPC/H-bridge inverter is proposed. Its Superior harmonic suppression is verified by comparing its harmonic spectrum with that of the conventional multicarrier approach. For DC- bus capacitor voltage control, a new, balance circuit is proposed. Because of its modularity, it is simple and can be easily incorporated in cascaded inverter model with any number of levels. Feedback controller design is presented with main focus on grid voltage regulation and overall system capacitor voltage balance. The validity of grid interface model and its control strategies is substantially confirmed by the extensive simulation results.},
 year = {2017}
}

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TY  - JOUR
T1  - A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application
AU  - Tom Wanjekeche
Y1  - 2017/10/23
PY  - 2017
N1  - https://doi.org/10.11648/j.ajmse.20170205.13
DO  - 10.11648/j.ajmse.20170205.13
T2  - American Journal of Management Science and Engineering
JF  - American Journal of Management Science and Engineering
JO  - American Journal of Management Science and Engineering
SP  - 89
EP  - 105
PB  - Science Publishing Group
SN  - 2575-1379
UR  - https://doi.org/10.11648/j.ajmse.20170205.13
AB  - Modeling of Cascaded Multilevel converter has put more emphasize on conventional cascaded H- bridge inverter. First a new phase shifted SPWM control algorithm for cascaded NPC/H-bridge inverter is proposed. Its Superior harmonic suppression is verified by comparing its harmonic spectrum with that of the conventional multicarrier approach. For DC- bus capacitor voltage control, a new, balance circuit is proposed. Because of its modularity, it is simple and can be easily incorporated in cascaded inverter model with any number of levels. Feedback controller design is presented with main focus on grid voltage regulation and overall system capacitor voltage balance. The validity of grid interface model and its control strategies is substantially confirmed by the extensive simulation results.
VL  - 2
IS  - 5
ER  -

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