Design of the high voltage isolation transmission module with low delay for ECRH system on J-TEXT

Haiyan MA (马海燕); Donghui XIA (夏冬辉); Zhijiang WANG (王之江); Fangtai CUI (崔芳泰); Zhenxiong YU (余振雄); Yikun JIN (金易坤); Changhai LIU (刘昌海)

doi:10.1088/2058-6272/aa99d3

Plasma Science and Technology > 2018 > 20(2): 24004-024004. > DOI: 10.1088/2058-6272/aa99d3

Haiyan MA (马海燕), Donghui XIA (夏冬辉), Zhijiang WANG (王之江), Fangtai CUI (崔芳泰), Zhenxiong YU (余振雄), Yikun JIN (金易坤), Changhai LIU (刘昌海). Design of the high voltage isolation transmission module with low delay for ECRH system on J-TEXT[J]. Plasma Science and Technology, 2018, 20(2): 24004-024004. DOI: 10.1088/2058-6272/aa99d3

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Design of the high voltage isolation transmission module with low delay for ECRH system on J-TEXT

State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China

Funds: This work is supported by the ITER Special Fund of China (Grant Nos. 2013GB106001 and 2013GB106003).

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Received Date: July 14, 2017

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Abstract

Abstract

As a flexible auxiliary heating method, the electron cyclotron resonance heating (ECRH) has been widely used in many tokamaks and also will be applied for the J-TEXT tokamak. To meet requirements of protection and fault analysis for the ECRH system on J-TEXT, signals of gyrotrons such as the cathode voltage and current, the anode voltage and current, etc should be transmitted to the control and data acquisition system. Considering the high voltage environment of gyrotrons, isolation transmission module based on FPGA and optical fiber communication has been designed and tested. The test results indicate that the designed module has strong anti-noise ability, low error rate and high transmission speed. The delay of the module is no more than 5 μs which can fulfill the requirements.
- J-TEXT tokamak,
- electron cyclotron resonance heating,
- high-voltage isolation

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References (13)

References

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