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Star-C - A novel converter topology

Holmström, Alexander; Domingues, Gabriel LU ; Fyhr, Pontus LU and Bängtsson, Hans LU (2016) Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion, MedPower 2016 In IET Conference Publications 2016.
Abstract

The Star-C is a new multilevel converter topology that is characterized by presenting a close to perfect sinusoidal output voltage. Its main purpose is to reduce the electromagnetic emissions that can interfere with other equipment placed nearby and to provide a high output power quality without the need of external filters. At the same time, the Star-C requires a significantly lower amount of components than multilevel converters able to reach similar performance. This work introduces the novel converter topology, explains its control and modulation and compares it with conventional two- and three-level converters in terms of THD, efficiency, current ripple and cost. The results show that the Star-C offers a THD that is up to ten times... (More)

The Star-C is a new multilevel converter topology that is characterized by presenting a close to perfect sinusoidal output voltage. Its main purpose is to reduce the electromagnetic emissions that can interfere with other equipment placed nearby and to provide a high output power quality without the need of external filters. At the same time, the Star-C requires a significantly lower amount of components than multilevel converters able to reach similar performance. This work introduces the novel converter topology, explains its control and modulation and compares it with conventional two- and three-level converters in terms of THD, efficiency, current ripple and cost. The results show that the Star-C offers a THD that is up to ten times lower than its closer contester. Additionally, its efficiency is slightly higher due to the fact that zero current switching is used. On the other hand, the cost and size of the Star-C is significantly higher than the other converters under comparison. However, this work does not include the cost of the external filters that each converter might require, which is expected to reduce the cost gap between the Star-C and conventional converters. Note that this paper is based on the findings in "Star-C - A new converter topology" by Alexander Holmström.

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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
EMC, Multilevel converter, Power electronics cost, Sinusoidal voltage, Voltage source converter
in
IET Conference Publications
volume
2016
publisher
Institution of Engineering and Technology
conference name
Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion, MedPower 2016
external identifiers
  • scopus:85014091401
language
English
LU publication?
yes
id
a44e233d-b126-4b9c-9d3a-9d6a852e8806
date added to LUP
2017-03-16 09:33:56
date last changed
2017-06-08 11:23:40
@inproceedings{a44e233d-b126-4b9c-9d3a-9d6a852e8806,
  abstract     = {<p>The Star-C is a new multilevel converter topology that is characterized by presenting a close to perfect sinusoidal output voltage. Its main purpose is to reduce the electromagnetic emissions that can interfere with other equipment placed nearby and to provide a high output power quality without the need of external filters. At the same time, the Star-C requires a significantly lower amount of components than multilevel converters able to reach similar performance. This work introduces the novel converter topology, explains its control and modulation and compares it with conventional two- and three-level converters in terms of THD, efficiency, current ripple and cost. The results show that the Star-C offers a THD that is up to ten times lower than its closer contester. Additionally, its efficiency is slightly higher due to the fact that zero current switching is used. On the other hand, the cost and size of the Star-C is significantly higher than the other converters under comparison. However, this work does not include the cost of the external filters that each converter might require, which is expected to reduce the cost gap between the Star-C and conventional converters. Note that this paper is based on the findings in "Star-C - A new converter topology" by Alexander Holmström.</p>},
  author       = {Holmström, Alexander and Domingues, Gabriel and Fyhr, Pontus and Bängtsson, Hans},
  booktitle    = {IET Conference Publications},
  keyword      = {EMC,Multilevel converter,Power electronics cost,Sinusoidal voltage,Voltage source converter},
  language     = {eng},
  publisher    = {Institution of Engineering and Technology},
  title        = {Star-C - A novel converter topology},
  volume       = {2016},
  year         = {2016},
}