强激光与粒子束
彊激光與粒子束
강격광여입자속
HIGH POWER LASER AND PARTICLEBEAMS
2010年
4期
887-890
,共4页
潘如政%王珏%严萍%孙广生%张东东%周媛%李敏堂
潘如政%王玨%嚴萍%孫廣生%張東東%週媛%李敏堂
반여정%왕각%엄평%손엄생%장동동%주원%리민당
沿面闪络开关%沿面闪络%激光触发%蒙特卡罗%仿真
沿麵閃絡開關%沿麵閃絡%激光觸髮%矇特卡囉%倣真
연면섬락개관%연면섬락%격광촉발%몽특잡라%방진
surface flashover switch%surface flashover%laser trigger%Monte Carlo%simulation
搭建了空气中脉冲电压下激光触发沿面闪络试验平台,在试验平台上进行了尼龙介质的激光触发沿面闪络特性试验,应用蒙特卡罗方法对尼龙在空气中激光触发沿面闪络过程进行仿真.建立了激光触发沿面闪络的蒙特卡罗仿真模型,对蒙特卡罗算法的实现过程进行了描述,得出激光能量密度不同时的闪络时延.仿真结果显示,随着激光能量密度的上升,激光触发沿面闪络时延下降,这表示激光能量密度增加,在介质表面上产生的电子数增多,使沿面闪络的时延减小,仿真结果与试验结果趋势一致,初步验证了空气中脉冲电压下激光触发沿面闪络机理.
搭建瞭空氣中脈遲電壓下激光觸髮沿麵閃絡試驗平檯,在試驗平檯上進行瞭尼龍介質的激光觸髮沿麵閃絡特性試驗,應用矇特卡囉方法對尼龍在空氣中激光觸髮沿麵閃絡過程進行倣真.建立瞭激光觸髮沿麵閃絡的矇特卡囉倣真模型,對矇特卡囉算法的實現過程進行瞭描述,得齣激光能量密度不同時的閃絡時延.倣真結果顯示,隨著激光能量密度的上升,激光觸髮沿麵閃絡時延下降,這錶示激光能量密度增加,在介質錶麵上產生的電子數增多,使沿麵閃絡的時延減小,倣真結果與試驗結果趨勢一緻,初步驗證瞭空氣中脈遲電壓下激光觸髮沿麵閃絡機理.
탑건료공기중맥충전압하격광촉발연면섬락시험평태,재시험평태상진행료니룡개질적격광촉발연면섬락특성시험,응용몽특잡라방법대니룡재공기중격광촉발연면섬락과정진행방진.건립료격광촉발연면섬락적몽특잡라방진모형,대몽특잡라산법적실현과정진행료묘술,득출격광능량밀도불동시적섬락시연.방진결과현시,수착격광능량밀도적상승,격광촉발연면섬락시연하강,저표시격광능량밀도증가,재개질표면상산생적전자수증다,사연면섬락적시연감소,방진결과여시험결과추세일치,초보험증료공기중맥충전압하격광촉발연면섬락궤리.
The experimental platform of laser-triggered surface flashover in pulsed voltage has been built up in the laboratory, and then the experiment of laser-triggered surface flashover was carried out using nylon columned insulators. On this basis, the laser-triggered surface flashover of nylon was simulated by Monte Carlo method, and the delay time of flashover was obtained with different laser energy densities. The simulation result shows that delay time decreases with laser energy density increasing, indicating an increase of the number of electrons in this process. The trend of simulation and experiment is consistent, verifying the mechanism of laser-triggered flashover.
