强激光能源系统故障保护对策与电磁干扰抑制方法  

Fault Protective Measures and EMI Depressing Approach for Power Conditioning Systems in High Power Lasers

作　　者：童金禄[1] 陈德怀[1] 齐珍[1] 赖贵友[1] 力一峥[1] 李冬梅[1] 栾永平[1] 何伟[1] 郭良福[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川省绵阳市621900

出　　处：《中国电机工程学报》2012年第28期97-103,13,共7页Proceedings of the CSEE

摘　　要：为了确保强激光能源系统的正常运行以及在故障条件下不危害人身安全和损坏设备,需要提高其电磁兼容水平和故障保护能力。针对这些问题,通过采用限流保护、提高关键元器件故障承受能力和优化接地网设计等技术防范措施降低了故障风险,提高了故障承受能力;通过采用新型放电回路、能源模块单点接地技术、降低干扰源能量、滤波、屏蔽和光纤隔离等措施有效地抑制了电磁干扰;最终实现了MJ能源模块的工程化建设,而且整个能源系统实现了安全、稳定、可靠运行。In order to assure the normal operation of the main power conditioning system （PCS） and avoid personnel safety accident and equipment damage when fault happened, the potential safety hazard and electro magnetic interference （EMI） problem were analyzed and corresponding measures were proposed. The fault risk of the PCS was decreased by using current limiting protection, improving some key components＇ fault enduring ability and optimizing grounding approach; EMI was effectively depressed by using novel discharging circuit, single point grounding approach, reducing the energy of EMI source, filtering, shielding, fiber-optic isolation and so on. Untimely safe, reliable and stable operation of the PCS was realized.

关 键 词：激光 能源系统 故障保护 电磁干扰 单点接地 预电离 气体火花开关 

分 类 号：TM836[电气工程—高电压与绝缘技术]