The Analysis and Calculation on ECRH Anode Circuit on the HL-2A Tokamak  

作　　者：ZENG Jianer RAO Jun KANG Zhihua LI Bo WANG Mingwei LU Zhihong ZHOU Jun HUANG Mei FENG Kun 

出　　处：《Southwestern Institute of Physics Annual Report》2006年第1期76-78,共3页核工业西南物理研究院年报（英文版）

摘　　要：In the last year, ECRH system has been built in the HL-2A and the testing of gyrotron is also finished. In the project testing, one of the problems is current-peak occurring in the anode circuit of gyrotron. The current-peak is much larger than that of the value set in protection circuit. The frequent current-peak frequently occurring in the rising of anode-voltage often caused the protection circuit to mistaken trigger. The mistaken triggering often halted the normal gyrotron-testing. A set of equations of anode circuit are derived for analysis the phenomena of the current-peak. The calculation based on the deduced formula shows that value of the current-peak strongly depends on the inductance L, capacitance C and the ramp-time of anode voltage in the anode circuit. The conductance L and capacitance C are the characteristic inductance and capacitance of the cable that is used for anode HV power supply. The numerical calculation is exactly consistent with waveform of the current peak recorded by oscillograph, that means the derived formula are correct. In order to decrease the value of the current-peak, we should decrease capacitance C, and increase inductance L and ramp-time of anode voltage.

关 键 词：ECRH Anode circuit Current-peak 

分 类 号：TL63[核科学技术—核技术及应用]