CAJ | 학술논문

为了满足聚合类绝缘材料老化实验及等离子体水处理高级氧化实验2项实验研究的应用要求,分别设计了双极性和单极性2种ns级高压脉冲发生器,且均主要由高压直流电源、两级脉冲储能电容器和气体开关等组成,结构紧凑,具有重复频率、脉冲宽度及电压幅值可调等优点。2种脉冲电源的主要区别在于各自的核心元件—多电极旋转火花隙开关（MER-SGS）的结构和尺寸设计,同时电源的重复工作频率也可由旋转火花隙驱动电机及电极数量调节控制。为验证火花隙开关的工作性能,采用ANSOFT/MAXWELL ELECTROSTATIC 2D软件建立了仿真模型,对2种开关不同开断关合角度下的电场强度进行了仿真分析和比较。结果表明,火花隙的紧凑结构设计能够产生强烈电场畸变进而保证脉冲电源在具备良好输出特性基础上,开关可靠动作,从而达到降低绝缘要求、减少电极烧蚀、延长工作寿命等目的。通过对2种脉冲电源有载情况下实际输出波形的测量可得,脉冲上升时间（〈10ns）、脉冲宽度（1～500μs）、重复工作频率（1～3kHz）、平均功率等电源参数均达到各自实验要求标准,具有良好的应用前景。
위료만족취합류절연재료노화실험급등리자체수처리고급양화실험2항실험연구적응용요구,분별설계료쌍겁성화단겁성2충ns급고압맥충발생기,차균주요유고압직류전원、량급맥충저능전용기화기체개관등조성,결구긴주,구유중복빈솔、맥충관도급전압폭치가조등우점。2충맥충전원적주요구별재우각자적핵심원건—다전겁선전화화극개관（MER-SGS）적결구화척촌설계,동시전원적중복공작빈솔야가유선전화화극구동전궤급전겁수량조절공제。위험증화화극개관적공작성능,채용ANSOFT/MAXWELL ELECTROSTATIC 2D연건건립료방진모형,대2충개관불동개단관합각도하적전장강도진행료방진분석화비교。결과표명,화화극적긴주결구설계능구산생강렬전장기변진이보증맥충전원재구비량호수출특성기출상,개관가고동작,종이체도강저절연요구、감소전겁소식、연장공작수명등목적。통과대2충맥충전원유재정황하실제수출파형적측량가득,맥충상승시간（〈10ns）、맥충관도（1～500μs）、중복공작빈솔（1～3kHz）、평균공솔등전원삼수균체도각자실험요구표준,구유량호적응용전경。
To meet requirements of different experimental research application,such as polymer aging of dielectrics and wastewater treatment using discharge plasma,we designed a bipolar high voltage nanosecond pulser and a unipolar one,respectively.The main difference between two pulsers lies in their varied constitution and size of key part,multiple-electrode rotating spark gap switch（MER-SGS）,of which the highest pulse repetition rate can be determined by DC driver motor revolution and electrode number.Calculating the distortion characteristic of electrical field can ensure enough action time,reduction ablation,and prolong the life of the switch.Moreover,we set up two simulation models for each MER-SGS.On the basis of the models,ANSOFT/MAXWELL ELECTROSTATIC 2D software was used to simulate,analyze,and compare the strength of electrical field of different action angle of two switches.Finally,we measured actual output waveforms under the conditions of two pulsers with load,and the results demonstrated that waveform characteristics,including rise time（10 ns）,pulse width（1~500 μs）,repetition rate（1~3 kHz） and average power,etc,met the standards of experimental application,and both of two pulsers had vital prospects in application for their compact structure,low cost and good performance.