Development of compact and light pulsed power generator

开发紧凑型光脉冲发电机

基本信息

批准号：
62880004
负责人：
AKIYAMA Hidenori
金额：
$ 3.65万
依托单位：
Kumamoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1989
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62880004/
关键词：
Pulsed power Fuse Plasma erosion switch Opening switch Inductive energy storage Fast pulse source Plasma Charged particle beam パルスパワーヒューズプラズマエロージョンスイッチオープニングスイッチ誘導性エネルギー蓄積粒子ビーム

项目摘要

Pulsed power technology is useful in many fields, which are the nuclear fusion, charged particle beams, high power lasers, microwaves, and electromagnetic accelerators. The conventional pulsed power generators, which consist of a Marx bank and a water pulse forming line, are huge machines. The development of compact and light pulsed power generators is necessary to develop applications of the pulsed power. Pulsed power generators by an inductive energy storage system have a possibility of extremely compact and light machines.The compact and light pulsed power generator, ASO-I, by the inductive energy storage system was constructed. The ASO-I has the two-staged opening switch, which consists of fuses in water and the PEOS, and is able to be operated hundreds of times a day. The characteristics of fuses as the opening switch are the long conduction and opening times. On the other hand, the plasma erosion opening switch (PEOS) is the short conduction and opening times. The long conduction and short opening times are achieved by the two-staged opening switches of fuses and the PEOS.The parallel thin copper wires as the first opening switch produce higher induced voltage than single wire of the same cross section with the sum of parallel wires. The slight geometrical differences of each of parallel wires do not influence the output voltage. The output voltage linearly increases with the length of wires in the case of comparatively short length. The dielectric strength of the copper vapor is about 12kV/cm. The voltage multiplication factor is about ten.The PEOS by four plasma guns is used as the second opening switch. The current rise time is improved from 250ns to lons. The resistance of PEOS is 3.5 OMEGA for the open-circuit load. The two-staged opening switches are successfully operated.

脉冲功率技术在核聚变、带电粒子束、高功率激光器、微波和电磁加速器等许多领域都有应用。传统的脉冲发电机由马克思组和水脉冲形成线组成，是一个巨大的机器。开发紧凑型轻脉冲发电机对于开发脉冲功率的应用是必要的。感应储能系统的脉冲发电机具有极其紧凑和轻型机器的可能性。构建了采用感应储能系统的紧凑和轻型脉冲发电机ASO-I。 ASO-I 具有两级断开开关，由水中的保险丝和 PEOS 组成，每天能够操作数百次。熔断器作为分断开关的特点是导通和分断时间长。另一方面，等离子腐蚀开启开关（PEOS）的导通和开启时间短。通过熔丝和PEOS的两级分断开关实现长导通和短分断时间。平行细铜线作为第一分断开关，其平行线总和比同截面的单线产生更高的感应电压。每根平行线的微小几何差异不会影响输出电压。在长度较短的情况下，输出电压随导线长度线性增加。铜蒸气的介电强度约为12kV/cm。电压倍增系数约为10。采用四支等离子枪的PEOS作为第二开启开关。电流上升时间从 250ns 提高到 lon。 PEOS的开路负载电阻为3.5Ω。两级分闸开关成功操作。