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Transformer Energization Using Grid Forming Converter

Maqbool, Imran LU ; Svensson, Jörgen LU ; Hemmingsson, Morten LU and Samuelsson, Olof LU (2022) 13th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion In IET Conference Proceedings 2022(25). p.231-236
Abstract
Increasing renewable integration is posing new challenges to reliability of power networks. One of these challenges is to restart the power network and energize power transformers in the event of a blackout. Grid forming converters can provide a potential solution to this issue because they can be controlled as independent, self starting, voltage sources. This study analyzes and compares four grid forming controllers to assess their capabilities to energizing the transformer. Simulations are performed with common parameters with different line lengths and transformer sizes. The results demonstrate that the inrush current and voltage show similar trends for these four controllers but with different magnitudes. The highest magnitude is... (More)
Increasing renewable integration is posing new challenges to reliability of power networks. One of these challenges is to restart the power network and energize power transformers in the event of a blackout. Grid forming converters can provide a potential solution to this issue because they can be controlled as independent, self starting, voltage sources. This study analyzes and compares four grid forming controllers to assess their capabilities to energizing the transformer. Simulations are performed with common parameters with different line lengths and transformer sizes. The results demonstrate that the inrush current and voltage show similar trends for these four controllers but with different magnitudes. The highest magnitude is observed for the matching control while other control schemes demonstrated similar performance. Moreover, each controller show different harmonic response and it is important to consider resonant frequencies of the network. (Less)
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
IET Conference Proceedings
series title
IET Conference Proceedings
volume
2022
issue
25
edition
25
pages
6 pages
conference name
13th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion
conference location
Valetta, Malta
conference dates
2022-11-07 - 2022-11-09
external identifiers
  • scopus:85174648015
ISSN
2732-4494
DOI
10.1049/icp.2022.3331
language
English
LU publication?
yes
id
7e2fc9d7-b42f-493f-9d92-dc27d5c73c7d
date added to LUP
2023-10-30 15:35:01
date last changed
2023-11-07 11:35:24
@inproceedings{7e2fc9d7-b42f-493f-9d92-dc27d5c73c7d,
  abstract     = {{Increasing renewable integration is posing new challenges to reliability of power networks. One of these challenges is to restart the power network and energize power transformers in the event of a blackout. Grid forming converters can provide a potential solution to this issue because they can be controlled as independent, self starting, voltage sources. This study analyzes and compares four grid forming controllers to assess their capabilities to energizing the transformer. Simulations are performed with common parameters with different line lengths and transformer sizes. The results demonstrate that the inrush current and voltage show similar trends for these four controllers but with different magnitudes. The highest magnitude is observed for the matching control while other control schemes demonstrated similar performance. Moreover, each controller show different harmonic response and it is important to consider resonant frequencies of the network.}},
  author       = {{Maqbool, Imran and Svensson, Jörgen and Hemmingsson, Morten and Samuelsson, Olof}},
  booktitle    = {{IET Conference Proceedings}},
  issn         = {{2732-4494}},
  language     = {{eng}},
  number       = {{25}},
  pages        = {{231--236}},
  series       = {{IET Conference Proceedings}},
  title        = {{Transformer Energization Using Grid Forming Converter}},
  url          = {{http://dx.doi.org/10.1049/icp.2022.3331}},
  doi          = {{10.1049/icp.2022.3331}},
  volume       = {{2022}},
  year         = {{2022}},
}