The Construction of Plasma Density Feedback Control System on J-TEXT Tokamak

The plasma density feedback control system（PDFCS） has been established on the Joint Texas Experimental Tokamak（J-TEXT） for meeting the need for an accurate plasma density in physical experiments.It consists of a density measurement subsystem,a feedback control subsystem and a gas puffing subsystem.A...

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Bibliographic Details
Published inPlasma science & technology Vol. 18; no. 2; pp. 211 - 216
Main Author 柯新 陈志鹏 巴为刚 舒双宝 高丽 张明 庄革
Format Journal Article
LanguageEnglish
Published 01.02.2016
Subjects
Calibration
Electric potential
Feedback control
Gas injection
Plasma density
Strategy
Tokamak devices
Voltage
分子组织
注射剂
等离子体
超声波
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ISSN1009-0630
DOI10.1088/1009-0630/18/2/20

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Summary:The plasma density feedback control system（PDFCS） has been established on the Joint Texas Experimental Tokamak（J-TEXT） for meeting the need for an accurate plasma density in physical experiments.It consists of a density measurement subsystem,a feedback control subsystem and a gas puffing subsystem.According to the characteristic of the gas puffing system,a voltage amplitude control mode has been applied in the feedback control strategy,which is accomplished by the proportion,integral and differential（PID） controller.In this system,the quantity calibration of gas injection,adjusted responding to the change of the density signal,has been carried out.Some experimental results are shown and discussed.
Bibliography:The plasma density feedback control system（PDFCS） has been established on the Joint Texas Experimental Tokamak（J-TEXT） for meeting the need for an accurate plasma density in physical experiments.It consists of a density measurement subsystem,a feedback control subsystem and a gas puffing subsystem.According to the characteristic of the gas puffing system,a voltage amplitude control mode has been applied in the feedback control strategy,which is accomplished by the proportion,integral and differential（PID） controller.In this system,the quantity calibration of gas injection,adjusted responding to the change of the density signal,has been carried out.Some experimental results are shown and discussed.
KE Xin, CHEN Zhipeng,BA Weigang , SHU Shuangbao, GAO Li, ZHANG Ming, ZHUANG Ge （ 1State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China 2School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China）
34-1187/TL
density feedback control tokamak PID
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ISSN:1009-0630
DOI:10.1088/1009-0630/18/2/20