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Title: Design of the klystron filament power supply control system for EAST LHCD

Abstract

A filament is a critical component of the klystron used to heat the cathode. There are totally 44 klystrons in experimental advanced superconducting tokamak (EAST) lower hybrid current drive (LHCD) systems. All klystron filaments are powered by AC power suppliers through isolated transformers. In order to achieve better klystron preheat, a klystron filament power supply control system is designed to obtain the automatic control of all filament power suppliers. Klystron filament current is measured by PLC and the interlock between filament current and klystron high voltage system is also implemented. This design has already been deployed in two LHCD systems and proves feasible completely.

Authors:
; ; ; ; ; ; ;  [1]
  1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)
Publication Date:
OSTI Identifier:
22611368
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 6; Journal Issue: 9; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CONTROL SYSTEMS; KLYSTRONS; LOWER HYBRID CURRENT DRIVE; PLASMA FILAMENT; SUPERCONDUCTING DEVICES; TOKAMAK DEVICES

Citation Formats

Wu, Zege, Wang, Mao, Hu, Huaichuan, Ma, Wendong, Zhou, Taian, Zhou, Faxin, Liu, Fukun, and Shan, Jiafang. Design of the klystron filament power supply control system for EAST LHCD. United States: N. p., 2016. Web. doi:10.1063/1.4962492.
Wu, Zege, Wang, Mao, Hu, Huaichuan, Ma, Wendong, Zhou, Taian, Zhou, Faxin, Liu, Fukun, & Shan, Jiafang. Design of the klystron filament power supply control system for EAST LHCD. United States. doi:10.1063/1.4962492.
Wu, Zege, Wang, Mao, Hu, Huaichuan, Ma, Wendong, Zhou, Taian, Zhou, Faxin, Liu, Fukun, and Shan, Jiafang. 2016. "Design of the klystron filament power supply control system for EAST LHCD". United States. doi:10.1063/1.4962492.
@article{osti_22611368,
title = {Design of the klystron filament power supply control system for EAST LHCD},
author = {Wu, Zege and Wang, Mao and Hu, Huaichuan and Ma, Wendong and Zhou, Taian and Zhou, Faxin and Liu, Fukun and Shan, Jiafang},
abstractNote = {A filament is a critical component of the klystron used to heat the cathode. There are totally 44 klystrons in experimental advanced superconducting tokamak (EAST) lower hybrid current drive (LHCD) systems. All klystron filaments are powered by AC power suppliers through isolated transformers. In order to achieve better klystron preheat, a klystron filament power supply control system is designed to obtain the automatic control of all filament power suppliers. Klystron filament current is measured by PLC and the interlock between filament current and klystron high voltage system is also implemented. This design has already been deployed in two LHCD systems and proves feasible completely.},
doi = {10.1063/1.4962492},
journal = {AIP Advances},
number = 9,
volume = 6,
place = {United States},
year = 2016,
month = 9
}
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