Novel Switched-Capacitor Compact Multilevel Converter Based on Packed E-Cell Design with Fault Tolerant Operation
Novel Switched-Capacitor Compact Multilevel Converter Based on Packed E-Cell Design with Fault Tolerant Operation
复制标题
基于具有容错操作的封装 E-Cell 设计的新型开关电容器紧凑型多电平转换器
DOI：
10.1109/iecon48115.2021.9589739
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
K. Al
中科院分区：
文献类型：
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作者：
M. Sharifzadeh;Mohammadali Ahmadijokani;M. Mehrasa;M. Sadabadi;K. Al
本文基于Packed E-Cell设计了一种新型的单直流源开关电容紧凑型多电平拓扑结构，具有11电平工作的升压能力，并作为可靠的AC-DC变换器具有容错能力。所提出的单相紧凑型变换器减少了有源/无源元件的数量，同时提高了输出电压水平，它包括6个普通功率开关和3个双向开关以及2个直流电容作为辅助直流源。虽然传统的紧凑型转换器是无法容错操作，建议的拓扑结构可以成为一个可靠的，同时它具有升压能力，由于其开关电容器的功能。此外，由于各种开关状态冗余，直流电容器被主动平衡。理论分析和Matlab-Simulink仿真结果验证了所提出的单相开关电容变换器的有效性，表明该变换器能够实现直流电容电压的精确平衡和交流输出端11电平的完美生成。
In this paper a novel single dc-source switch-capacitor compact multilevel topology is designed based on Packed E-Cell to have the boosting potency for the 11-level operation and to merit as a reliable AC-DC converter for fault tolerant capability. The proposed single-phase compact converter is reduced the active/passive components counts while the output voltage levels are increased which it includes 6 normal power switches and 3 bidirectional switches as well as 2 dc capacitors as the auxiliary dc sources. While the conventional compact converter is incapable of fault tolerant operation, the proposed topology could emerge as a reliable while it has the boosting ability due to its switched-capacitor feature. Moreover, the dc capacitors are actively balanced thanks to various switching states redundancy. The proposed single-phase switched-capacitor converter is validated by theoretical analyses as well as simulation results obtained by Matlab-Simulink where it shows the accurate dc capacitors voltages balancing and prefect 11-level generation in the AC output terminal.