Deltamax高压缓冲器的研制  

Research and development of the core snubber based on Deltamax

作　　者：谢飞[1,2] 李格[2] 

机构地区：[1]顺德职业技术学院电子与信息工程学院,广东顺德528300 [2]中国科学院等离子体物理研究所,安徽合肥2300312

出　　处：《哈尔滨工程大学学报》2014年第6期766-770,共5页Journal of Harbin Engineering University

基　　金：国家自然科学基金资助项目(41301009);国家磁约束核聚变能研究专项基金资助项目(2010GB108003;2011GB113005-1)

摘　　要：高压缓冲器(core snubber)是抑制超导托卡马克聚变实验装置EAST加热中性束器高压故障时短路电流的重要装置。在铁芯叠片近饱和等效电阻理论基础上,修正原模型忽略等效电感的模式模型,针对等效电阻和电感共同作用的实际工况,通过仿真模型和实验优化得到基于Deltamax材料缓冲器物理与结构设计参数,所研制缓冲器经96.5 kV/4 nF实验测试,可有效抑制短路电流在400 A之内,保障核心部件离子源安全运行,测试值与理论分析模型基本吻合,整个系统运行可靠。The core snubber is a very important device which is designed to limit the short current within the HNB （ heating neutral beam） in the superconducting Tokamak （ EAST） during the period of a high voltage breakdown. Based on the equivalent resistance theory regarding the iron core lamination, the patterns of the former model which neglected equivalent inductance were corrected, and taking into account the actual working conditions of the combined actions of equivalent resistance and inductance, through a simulation model and experiment optimization, the physical and structural design parameters of the new snubber were designed with Deltamax cores. This snubber was tested at 96.5 kV with a 4nF discharged capacitor and the peak short current was within 400 A, ensuring the safe operation of the iron source-the core part. The test value and theoretical analysis agreed basically, proving the entire system can run reliably.

关 键 词：加热中性束 高压缓冲器 B-H曲线 分布电容 放电试验 电弧电流 

分 类 号：TM402[电气工程—电器]