期刊文献+

基于重叠电流法的AAMC电容电压均衡策略 预览 被引量:1

AAMC Capacitor Voltage Balancing Strategy Base on Overlap Current
在线阅读 下载PDF
收藏 分享 导出
摘要 介绍了桥臂交替导通多电平换流器(AAMC)的拓扑结构及其工作原理。相比于传统MMC而言,具有模块数更少,没有环流和能够直流闭锁等优点,同时没有增加开关损耗,故具有良好的发展前景。但AAMC在处理电容电压均衡的问题上相比MMC而言更为困难。采用重叠电流的方法,通过配置桥臂电抗器,改变桥臂导通时间并加以额外的控制策略,最后实现电容电压的均衡。在PSCAD/EMTDC平台上建立了每个桥臂14个模块的AAMC拓扑模型,通过仿真验证了重叠电流法的有效性。 This paper describes the topological structure and working principle of the alternate-arm muhilevel converter ( AAMC }. As compared with conventional MMC, it offers some attractive features such as fewer modules~ no loop current, DC blocking capacity and no additional switching loss, so that it has a good prospect for further development. However, in AAMC, it is more difficult to solve the problem of voltage balance among capacitors. Voltage balancing is finally realized in the overlap current method by using bridge arm inductors to change the conducting time of the arms and adopting an additional control strategy. An AAMC topological model with 14 modules in each arm is established on the PSCAD/EMTDC platform, and simulation results verify the effectiveness of the overlap current approach.
作者 汪枫林 王勤 瞿亚运 WANG Feng-lin, WANG Qin, QU Ya-yun (College of Automation, Nanjing University of Aeronautics and Astronautics, Nanjing Jiangsu 210016, China)
出处 《电气自动化》 2015年第5期56-59,共4页 Electrical Automation
关键词 交替导通换流器 电容电压均衡 重叠电流 桥臂电抗器 导通时间 alternate-arm multilevel converter capacitor voltage balance overlap current~ bridge arm inductor conducting time
  • 相关文献

参考文献11

二级参考文献111

共引文献837

同被引文献31

引证文献1

二级引证文献2

投稿分析
职称考试

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈