基于新型三电平变流器的超导磁储能系统设计  

A Superconducting magnetic energy storage system design based on new three-level converter

作　　者：张学龙[1] 闫涛[2] 付珊珊[2] 李卫国[1] 渠展展[2] 郭伟[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206 [2]中国电力科学研究院,北京100192

出　　处：《低温与超导》2014年第1期44-48,共5页Cryogenics and Superconductivity

摘　　要：为改善超导磁储能系统在充放电过程中的输出特性,并提高其能量转换效率,在分析了A-NPC三电平变流器拓扑结构及其工作原理的基础上,以此变流器为核心,设计了一套超导磁储能系统。该系统采用一种基于SVPWM调制的三电平直接功率控制策略,并利用功率前馈解耦算法,实现了储能系统充放电过程中的单位功率因数控制。实验结果表明,储能系统充放电过程稳定可靠,工作效率有效提高,并能获得良好的电流、电压波形。In order to improve conversion efficiency of superconducting magnetic energy storage system during the process of charging and discharging , and improve the output performance, based on analysis of the A - NPC three - level topology and its working principle, this paper designd a superconducting magnetic energy storage system. This system used a direct power control scheme for three - level PWM rectifier, which based on SVPWM. What＇ s more, the using of power feed forward decoupling real- ized the direct decoupling control between active power and reactive power experimental results. It shows that superconducting magnetic energy storage system works reliably and effectively, with better waveforms and efficiency.

关 键 词：新型三电平电路 三电平 变流器 超导磁储能系统 

分 类 号：TN86[电子电信—信息与通信工程]