Arc Stability Control of a High-Power Thyristor Rectifier System in a DC Arc Furnace
(2014) In IEEE Transactions on Power Electronics 29(12). p.6342-6351- Abstract
- Fundamental features of the arc stability in a dc arc furnace of 720 V/100 kA/72 MW have been investigated. The Cassie-Mayr arc model has been employed and applied for the target dc arc furnace. In order to characterize the parameters of the Cassie-Mayr arc model and the behavior of unstable arc dynamics, the advanced arc simulations of magneto-hydrodynamics (MHD) have been performed. From the results of MHD simulation, the dc arc dynamic resistance is proposed to be an effective arc stability function reflecting the instability of dynamic arc behavior. A control strategy of the 12-pulse thyristor rectifier system to regulate the arc stability function is also proposed in this paper. The simulation and experimental results confirm the... (More)
- Fundamental features of the arc stability in a dc arc furnace of 720 V/100 kA/72 MW have been investigated. The Cassie-Mayr arc model has been employed and applied for the target dc arc furnace. In order to characterize the parameters of the Cassie-Mayr arc model and the behavior of unstable arc dynamics, the advanced arc simulations of magneto-hydrodynamics (MHD) have been performed. From the results of MHD simulation, the dc arc dynamic resistance is proposed to be an effective arc stability function reflecting the instability of dynamic arc behavior. A control strategy of the 12-pulse thyristor rectifier system to regulate the arc stability function is also proposed in this paper. The simulation and experimental results confirm the usefulness of the proposed dynamic arc resistance as the arc stability function along with the active control strategy. The proposed arc stability function can be regarded as an effective criterion for the overall power conversion system to maintain highly stable arcing operation leading to better productivity and reliability in a dc arc furnace. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4709932
- author
- Jung, Kyungsub ; Suh, Yongsug ; Kim, Taewon ; Park, Taejoon and Lee, Yong Joong LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Arc stability, dc arc furnace, rectifier, thyristor control
- in
- IEEE Transactions on Power Electronics
- volume
- 29
- issue
- 12
- pages
- 6342 - 6351
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- wos:000341623800013
- scopus:84906265147
- ISSN
- 0885-8993
- DOI
- 10.1109/TPEL.2014.2304721
- language
- English
- LU publication?
- yes
- id
- bbd6a2ea-7768-4c83-a83b-7610ebc886c4 (old id 4709932)
- date added to LUP
- 2016-04-01 12:52:41
- date last changed
- 2022-01-27 08:07:01
@article{bbd6a2ea-7768-4c83-a83b-7610ebc886c4,
abstract = {{Fundamental features of the arc stability in a dc arc furnace of 720 V/100 kA/72 MW have been investigated. The Cassie-Mayr arc model has been employed and applied for the target dc arc furnace. In order to characterize the parameters of the Cassie-Mayr arc model and the behavior of unstable arc dynamics, the advanced arc simulations of magneto-hydrodynamics (MHD) have been performed. From the results of MHD simulation, the dc arc dynamic resistance is proposed to be an effective arc stability function reflecting the instability of dynamic arc behavior. A control strategy of the 12-pulse thyristor rectifier system to regulate the arc stability function is also proposed in this paper. The simulation and experimental results confirm the usefulness of the proposed dynamic arc resistance as the arc stability function along with the active control strategy. The proposed arc stability function can be regarded as an effective criterion for the overall power conversion system to maintain highly stable arcing operation leading to better productivity and reliability in a dc arc furnace.}},
author = {{Jung, Kyungsub and Suh, Yongsug and Kim, Taewon and Park, Taejoon and Lee, Yong Joong}},
issn = {{0885-8993}},
keywords = {{Arc stability; dc arc furnace; rectifier; thyristor control}},
language = {{eng}},
number = {{12}},
pages = {{6342--6351}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{IEEE Transactions on Power Electronics}},
title = {{Arc Stability Control of a High-Power Thyristor Rectifier System in a DC Arc Furnace}},
url = {{http://dx.doi.org/10.1109/TPEL.2014.2304721}},
doi = {{10.1109/TPEL.2014.2304721}},
volume = {{29}},
year = {{2014}},
}