A Multilevel Inverter With Minimized Components Featuring Self-Balancing and Boosting Capabilities for PV Applications

被引：28
作者：
Jahan, Hossein Khoun [1 ]
Abapour, Mehdi [1 ]
Zare, Kazem [1 ]
Hosseini, Seyed Hossein [1 ,2 ]
Blaabjerg, Frede [3 ]
Yang, Yongheng [4 ]
机构：
[1] Univ Tabriz, Elect & Comp Engn Fac, Tabriz, Iran
[2] Near East Univ, Engn Fac, TR-99138 Nicosia, Turkiye
[3] Aalborg Univ, Energy Technol Fac, Aalborg, Denmark
[4] Aalborg Univ, Energy Technol Dept, Aalborg, Germany
来源：
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2023年 / 11卷 / 01期
关键词：
Capacitors; Topology; Leakage currents; Inverters; Inductors; Switches; Component-count reduction; leakage currents; multilevel inverter (MI); photovoltaic (PV) applications; switched capacitor module; LEAKAGE CURRENT;
D O I：
10.1109/JESTPE.2019.2922415
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The cascaded H-bridge multilevel inverter (CMI) attracts much attention as a versatile converter in photovoltaic (PV) applications. Requiring several isolated dc sources and many switches are the main demerits of the CMI. In PV applications with the CMI, PV modules can be used as the isolated dc sources, which, however, may contribute to intermodule and grid leakage currents due to the module stray capacitors. In this context, a switched-capacitor (SC)-based cascaded half-bridge multilevel inverter is proposed in this paper to address the above issues. The proposed topology only requires one dc source, and it achieves the minimum number of switches, spontaneous capacitor charging, voltage boosting, and continuous input current. The intermodule leakage currents can also be eliminated in the proposed topology. The feasibility and effectiveness of the proposed topology are validated through simulations and experimental tests.
引用
收藏
页码：1169 / 1178
页数：10
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