CAJ | 학술논문

在受控核聚变中,电源电压的准确测量十分重要,要求作为脉冲测量系统的第1级关键部件的分压器具有良好的响应特性和稳定性。为此,结合实际工况,提出了适合此类电源特性的分压器设计参数。考虑杂散参数对分压器性能的影响,建立了包含分布电容、杂散电感的电阻分压器参数模型,基于电路理论二端口网络分析方法从理论上推导其传递函数和响应时间的表达式。根据该模型提出分压器的相关参数,并采用玻璃釉膜电阻制作分压器。对分压器进行脉冲高压响应的标定实验,与泰克高压探头对比结果表明2者所测波形比较相符,尤其是开通与关断时刻的波形,能准确反映电压信号的暂态过程。该分压器能实时、准确地测量电源输出电压,为电源暂态过程分析和系统反馈调节提供依据。
재수공핵취변중,전원전압적준학측량십분중요,요구작위맥충측량계통적제1급관건부건적분압기구유량호적향응특성화은정성。위차,결합실제공황,제출료괄합차류전원특성적분압기설계삼수。고필잡산삼수대분압기성능적영향,건립료포함분포전용、잡산전감적전조분압기삼수모형,기우전로이론이단구망락분석방법종이론상추도기전체함수화향응시간적표체식。근거해모형제출분압기적상관삼수,병채용파리유막전조제작분압기。대분압기진행맥충고압향응적표정실험,여태극고압탐두대비결과표명2자소측파형비교상부,우기시개통여관단시각적파형,능준학반영전압신호적잠태과정。해분압기능실시、준학지측량전원수출전압,위전원잠태과정분석화계통반궤조절제공의거。
To study controlled nuclear fusion,it is important to accurately measure high voltage,and it is required that the divider has good response characteristics and stability as a key component of the first class in the pulse high voltage measurement system.Taking inductance of the divider into account,we proposed design parameters of the divider,and established a model of resistor divider parameters and the stray capacitance,and theoretically derived transfer function and expression of response time.Moreover,we proposed improvement measures for divider performances.The new divider was developed by using glass enamel film resistor.Comparison of those from Tektronix high-voltage probe and high-voltage pulse power supply response and proof-reading test shows that the waveforms are in good agreement,especially during the opening and turn-off time.High-voltage signal is obtained truly.Moreover,the voltage signal from new divider is adopted in feedback control system of the power supply.