摘要
为了验证活塞式螺旋绕组磁通压缩发电机(MFCG“)减小电感以放大电流”的工作原理,设计制作了活塞式螺旋绕组MFCG原理样机,并完成了原理实验。借用传统火炮作动力系统,活塞组件采用短路毛刷、锥形电枢等复合结构,600μF电容器组为42μH螺旋绕组提供种子电流,活塞组件以约200m/s的速度完成磁通压缩发电的过程。测量结果显示:在电感逐步减小的2.5ms时间间隔内,回路电流逐步放大。分析了电流波形的三个问题:充电段与发电段的模糊过渡、独特的电流放大波形、发电结束时的噪声问题等。根据测量结果推测了运动电接触的阻值范围。原理实验为进一步MFCG研究提供了重要参考。
A kind of piston-type magnetic flux compression generator （MFCG） prototype model with a helix winding is developed to prove the working principle of decreasing the inductance for the enlarged current. The traditional Ф100mm gun accelerates the piston into the magnetic region within a helix winding. The piston is composed of the conical armature and the copper-wire-bundle brush etc.. The helix winding has an inductance of 42μH and an inherent resistance of 3.7mΩ. Fed by the charged 600μF capacitors, the winding is scanned and shorted by the piston with an about 200 m/s velocity in the experiment, as a result, the circuit current is magnified continuously in the whole time interval about 2.5ms. At last, the current evaluation is analyzed in three aspects： the ambiguous transition of the feeding and the generating, the particular fluctuation of the amplifying process, and the reason of the noise at the end of the fluctuation.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第21期156-159,共4页
Proceedings of the CSEE
关键词
磁通压缩发电机
脉冲功率电源
原理样机
实验
螺旋绕组
magnetic flux compression generator
pulsed power supply
prototype model
experiment
helix winding
