A Common Grounded Zeta-Canonical Switching Cell Single-Stage Buck-Boost Inverter

被引：1
作者：
Feng, Weiquan [1 ,2 ,3 ]
Su, Mei [1 ,2 ,3 ]
Jiang, Li [1 ,2 ,3 ]
Wang, Hui [1 ,2 ,3 ]
Liu, Yonglu [1 ,2 ,3 ]
机构：
[1] Cent South Univ, Sch Automat, Changsha 410083, Peoples R China
[2] Cent South Univ, Hunan Prov Key Lab Power Elect Equipment & Grid, Changsha 410083, Peoples R China
[3] Cent South Univ, Natl Engn Res Ctr Adv Energy Storage Mat, Changsha 410083, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2024年 / 39卷 / 12期
关键词：
Buck-boost inverter; canonical switching cell (CSC); common grounded; leakage current; zeta; TRANSFORMERLESS INVERTER; LEAKAGE CURRENT;
D O I：
10.1109/TPEL.2024.3443391
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：
This article proposes a single-phase single-stage nonisolated buck-boost inverter for photovoltaic systems. It is obtained by combining and reconfiguring two dc-dc circuits, Zeta and canonical switching cell (CSC). In the proposed inverter, Zeta and CSC will operate alternately at positive and negative half cycles, respectively. The common mode leakage current is eliminated due to the fact that there is a common terminal in the input and output ports in both modes. Besides, only one switch operates at a high frequency in each mode, resulting in high efficiency. This article first introduced the derivation process of the proposed inverter and its operation principle. Then, the controllers and inverter parameters in both modes are designed. Finally, its performance is verified with a 500-W laboratory prototype.
引用
收藏
页码：15822 / 15830
页数：9
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