运载火箭中频交流供电线路的远程漏电检测技术研究
Research on Remote Leakage Monitoring Technology for Medium Frequency AC Power Supply Circuit of Launch Vehicle
徐文晓 1卢頔 1张学英 1路航 1李璨1
作者信息
- 1. 北京宇航系统工程研究所,北京,100076
- 折叠
摘要
为提升运载火箭测试效率,优化射前测发流程,改变传统手动断开电缆进行漏电检测的方法,面向运载火箭远程漏电检测需求,开展了运载火箭中频交流供电线路的远程漏电检测技术研究,保持原有箭地供电线路,对漏电检测电路进行设计及精度计算分析,并采取自检测等设计提高系统的可靠安全性.经试验验证,该系统满足在线连续漏电检测不少于24h,精准漏电检测范围为500kΩ～50MΩ,漏电检测精度为±10%,具有高可靠、高精度、高效率等特点,并成功应用于大型低温运载火箭的测发流程中,对于提升运载火箭自动化测试水平、实现前端无人值守具有重要意义.
Abstract
In order to improve test efficiency of launch vehicle and optimize the process of prelaunch testing,and to alter the traditional method of disconnecting electric cables manually for leakage monitoring,based on maintaining the original power supply circuit,a leakage monitoring technology research for the medium frequency alternating current supply circuit is proposed and developed.At the same time,the precision of leakage monitoring circuit is analyzed and the self-detection method is used to advance the reliability and safety of the system.The test results show that the system realized online leakage monitoring lasting no less than 24hours,and the range of leakage monitoring is 500KΩ～50MΩ with the precision better than 10%,satisfying the monitoring requirements.Finally,the system experiment is carried out in the prelaunch testing of large cryogenic launch vehicle with high-reliability,high-precision and high-efficiency,and has significance of improving the level of automated testing and realizing unattended fore-end of launch vehicle.
关键词
运载火箭/中频/交流电供电线路/远程控制/漏电检测Key words
launch vehicle/medium frequency/AC supply circuit/remote control/leakage monitoring引用本文复制引用
出版年
2024
NETL
NSTL
万方数据