4.6GHz/6MW Lower Hybrid Current Drive (LHCD) is one of plasma current heating methods for Experimental Advanced Superconducting Tokamak (EAST). High Voltage Power Supply (HVPS) is the power supply subsystem of 4.6GHz/6MW LHCD system, which was designed, built and accepted successfully by Chinese National Development and Reform Commission in 2015. Then the new system has been in use for the 2015 EAST campaign. This paper presents the structure of 4.6GHz/6MW LHCD-HVPS and its transient operation state when its klystron load has short circuit fault. In order to protect the klystron and HVPS itself, the short-circuit fault and its transient process are analyzed and calculated in detail. And a three-electrode gas switch has been built to eliminate the short-circuit fault in microseconds. In addition, the effectiveness of the three-electrode gas switch has been verified by simulation and experiment result. The HVPS has been used in 4.6GHz/6MW LHCD system and it has good performance for the entire 2015 EAST campaign.
| Published in | Journal of Electrical and Electronic Engineering (Volume 5, Issue 4) |
| DOI | 10.11648/j.jeee.20170504.12 |
| Page(s) | 116-122 |
| 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 |
Lower Hybrid Current Drive, High Voltage Power Supply, Pulse Step Modulation, Three-Electrode Gas Switch, Short Circuit Fault
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APA Style
Zhigang Yang, Peng Fu, Fei Guo, Haozhang Sun, Jian Zhang, et al. (2017). Analysis of Short Circuit Fault for 4.6GHz/6MW LHCD High Voltage Power Supply. Journal of Electrical and Electronic Engineering, 5(4), 116-122. https://doi.org/10.11648/j.jeee.20170504.12
ACS Style
Zhigang Yang; Peng Fu; Fei Guo; Haozhang Sun; Jian Zhang, et al. Analysis of Short Circuit Fault for 4.6GHz/6MW LHCD High Voltage Power Supply. J. Electr. Electron. Eng. 2017, 5(4), 116-122. doi: 10.11648/j.jeee.20170504.12
AMA Style
Zhigang Yang, Peng Fu, Fei Guo, Haozhang Sun, Jian Zhang, et al. Analysis of Short Circuit Fault for 4.6GHz/6MW LHCD High Voltage Power Supply. J Electr Electron Eng. 2017;5(4):116-122. doi: 10.11648/j.jeee.20170504.12
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Download@article{10.11648/j.jeee.20170504.12,
author = {Zhigang Yang and Peng Fu and Fei Guo and Haozhang Sun and Jian Zhang and Mao Wang and Fukun Liu and Yiyun Huang},
title = {Analysis of Short Circuit Fault for 4.6GHz/6MW LHCD High Voltage Power Supply},
journal = {Journal of Electrical and Electronic Engineering},
volume = {5},
number = {4},
pages = {116-122},
doi = {10.11648/j.jeee.20170504.12},
url = {https://doi.org/10.11648/j.jeee.20170504.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeee.20170504.12},
abstract = {4.6GHz/6MW Lower Hybrid Current Drive (LHCD) is one of plasma current heating methods for Experimental Advanced Superconducting Tokamak (EAST). High Voltage Power Supply (HVPS) is the power supply subsystem of 4.6GHz/6MW LHCD system, which was designed, built and accepted successfully by Chinese National Development and Reform Commission in 2015. Then the new system has been in use for the 2015 EAST campaign. This paper presents the structure of 4.6GHz/6MW LHCD-HVPS and its transient operation state when its klystron load has short circuit fault. In order to protect the klystron and HVPS itself, the short-circuit fault and its transient process are analyzed and calculated in detail. And a three-electrode gas switch has been built to eliminate the short-circuit fault in microseconds. In addition, the effectiveness of the three-electrode gas switch has been verified by simulation and experiment result. The HVPS has been used in 4.6GHz/6MW LHCD system and it has good performance for the entire 2015 EAST campaign.},
year = {2017}
}
TY - JOUR T1 - Analysis of Short Circuit Fault for 4.6GHz/6MW LHCD High Voltage Power Supply AU - Zhigang Yang AU - Peng Fu AU - Fei Guo AU - Haozhang Sun AU - Jian Zhang AU - Mao Wang AU - Fukun Liu AU - Yiyun Huang Y1 - 2017/07/17 PY - 2017 N1 - https://doi.org/10.11648/j.jeee.20170504.12 DO - 10.11648/j.jeee.20170504.12 T2 - Journal of Electrical and Electronic Engineering JF - Journal of Electrical and Electronic Engineering JO - Journal of Electrical and Electronic Engineering SP - 116 EP - 122 PB - Science Publishing Group SN - 2329-1605 UR - https://doi.org/10.11648/j.jeee.20170504.12 AB - 4.6GHz/6MW Lower Hybrid Current Drive (LHCD) is one of plasma current heating methods for Experimental Advanced Superconducting Tokamak (EAST). High Voltage Power Supply (HVPS) is the power supply subsystem of 4.6GHz/6MW LHCD system, which was designed, built and accepted successfully by Chinese National Development and Reform Commission in 2015. Then the new system has been in use for the 2015 EAST campaign. This paper presents the structure of 4.6GHz/6MW LHCD-HVPS and its transient operation state when its klystron load has short circuit fault. In order to protect the klystron and HVPS itself, the short-circuit fault and its transient process are analyzed and calculated in detail. And a three-electrode gas switch has been built to eliminate the short-circuit fault in microseconds. In addition, the effectiveness of the three-electrode gas switch has been verified by simulation and experiment result. The HVPS has been used in 4.6GHz/6MW LHCD system and it has good performance for the entire 2015 EAST campaign. VL - 5 IS - 4 ER -
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