...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Power Electronics, IET >Asymmetric cascade multilevel inverter with self-balanced switched-capacitor unit and single source
【24h】

Asymmetric cascade multilevel inverter with self-balanced switched-capacitor unit and single source

机译：非对称级联多级逆变器，具有自平衡开关 - 电容器单元和单源

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The technique of single-source cascaded H-bridge multilevel inverter (MLI) has been reported in previous works. In this study, a self-balanced series/parallel switched-capacitor (SC) is introduced to further develop this type of MLIs to generate more output levels. Each cascaded H-bridge is fed by an SC unit. All components in each SC unit withstand the same voltage stress, but different SC units address different voltages. With this asymmetric feature, different H-bridges are responsible for providing levels with different voltage intervals so that the cascaded MLI can generate numerous levels with a single dc source and fewer components. Compared with the conventional asymmetrical cascaded MLIs, just a single dc source is required, capacitors’ voltages are balanced automatically, high boosting ability and more output levels are achieved with SC technique in the proposed MLIs. To synthesise the output voltage as close as possible to sinusoidal shape but with less switching loss, comparative analysis of nearest level control and equal area criterion is provided to modulate the proposed MLI with 13-level output. Experimental results demonstrate that the proposed MLI has high efficiency and low harmonics.
机译：在以前的作品中报告了单源级联H-Bridge多级逆变器（MLI）的技术。在该研究中，引入了自平衡系列/并行开关电容器（SC）以进一步开发这种类型的MLI以产生更多的输出电平。每个级联的H桥由SC单元馈送。每个SC单元中的所有组件都可承受相同的电压应力，但不同的SC单元地址不同的电压。利用这种不对称的特征，不同的H桥负责提供具有不同电压间隔的水平，使得级联的MLI可以通过单个DC源和更少的组件产生许多级别。与传统的不对称级联MLIS相比，只需要单个DC源，电容器的电压自动平衡，高升压能力和更多的输出水平在提出的MLI中通过SC技术实现。为了将输出电压合成尽可能靠正弦形状，但具有较少的开关损耗，提供了最近的液位控制和等于区域标准的比较分析来调制提出的MLI，具有13级输出。实验结果表明，所提出的MLI具有高效率和低谐波。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号