串充并放型电感储能脉冲电源XRAM的解耦改进  

Decoupling to improve XRAM inductive pulse power sources with series charging and parallel discharging characteristics

作　　者：于歆杰[1] 初祥祥[1] 

机构地区：[1]清华大学电机工程与应用电子技术系,电力系统国家重点实验室,北京100084

出　　处：《清华大学学报（自然科学版）》2012年第5期710-714,共5页Journal of Tsinghua University(Science and Technology)

摘　　要：电感的能量密度比电容高一个数量级,因此在脉冲电源领域有较大的应用潜力。基于串充并放原理,串充并放型电感储能脉冲电源XRAM在成本、可拓展性等方面相比其他拓扑有着明显的优势。该文分析了XRAM的工作原理,指出了原有XRAM中的缺陷:原XRAM存在耦合,电感、晶闸管的电流存在长时间大幅高频振荡。在此基础上提出了通过引入隔离二极管,对XRAM进行解耦的解决方案;进行仿真比较解耦前后4个关键电气性能指标的差异。结果表明:解耦后的XRAM弥补了原有XRAM的不足,在保持原拓扑所有优势的同时,显著改善了部分电气性能指标。Higher energy densities make inductive storage more promising than capacitive storage for pulsed power supplies. The XRAM topology was developed with charging in series and discharging in parallel for inductive pulsed power supplies with lower cost and better scalability. However, the original XRAM has several drawbacks such as the coupling and long time, high magnitude, high frequency oscillations of the current for the inductances and thysistors in the original XRAM. Separated dioxides are introduced here to decouple the original XRAM. Simulations using four electrical characteristic indices show that the decoupled XRAM eliminates the drawbacks of the original design, while keeping all the advantages of the original design and improving some electrical characteristic indices.

关 键 词：电感储能型脉冲电源 XRAM 解耦 电气性能指标 

分 类 号：TM91[电气工程—电力电子与电力传动]