Performance Evaluation of Isolated Three- Phase Differential Flyback Inverter with Ripple-Free Input Current for Grid-tied Applications

被引：2

作者：

Ali, Ahmed Ismail M. ^{[1
,2
]}

Takeshita, Takaharu ^{[1
]}

Sayed, Mahmoud A. ^{[2
]}

机构：

[1] Nagoya Inst Technol, Elect & Mech Engn Dept, Nagoya, Aichi 4668555, Japan

[2] South Valley Univ, Elect Engn Dept, Qena 83523, Egypt

来源：

2022 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, APEC | 2022年

关键词：

DC-AC inverter; Three-phase differential flyback inverter; High frequency isolation; Second; order harmonic elimination (SOHE); LPF; CONVERTER;

D O I：

10.1109/APEC43599.2022.9773546

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：

DC-AC inverters with voltage boosting capability are widely utilized in many applications for power conversion requirements especially for low/medium PV applications. In this paper, performance evaluation and parameters design of the isolated three-phase differential flyback inverter (TDFI) is presented. The proposed TDFI draws a ripple-free input DC current considering a small input film capacitor, which mitigate the requirement for bulky electrolytic capacitor at the input DC side and enhances its reliability and lifetime. In addition, the TDFI offers number of merits such as; reduced passive and switching components, compact size, voltage boosting-bucking property, and enhanced footprint. Moreover, cascaded low-pass filter (LPF) is used for second-order harmonic elimination (SOHE). The proposed SOHE strategy improves the grid currents THD to meet the harmonic standard limits. In addition, SOHE eliminates the third order harmonic component from the input current, which allows a ripple-free input DC current for grid integrated solar PV applications. The single carrier based control scheme of the proposed TDFI has been experimentally verified at 1.6 kW, 200 W, and 50 kHz switching frequency.

引用

页码：78 / 85

页数：8

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