Design and Implementation of a Photovoltaic Grid-Connected Micro-Inverter with Power Factor Correction Technology

被引：0

作者：

Chen, Yu-Kun ^{[1
]}

Liang, Tsorng-Juu ^{[1
]}

Wu, Wei-Chia ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Green Energy Elect Res Ctr GREERC, AOTC, Dept Elect Engn, Tainan, Taiwan

来源：

2015 9TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND ECCE ASIA (ICPE-ECCE ASIA) | 2015年

关键词：

Power factor correction; Duality; Grid-connected micro-inverter; UTILITY INTERACTIVE INVERTER; DC INPUT;

D O I：

暂无

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：

In this paper, a photovoltaic (PV) girdconnected micro-inverter controlled by power factor correction (PFC) controller is implemented. The PFC controller is adopted to control the inverter output current sinusoidally. Besides, the maximum power point tracking control circuit can get the maximum power form PV modules. The duality between the PFC circuit and the inverter circuit is presented first. Then, the PFC design rules is applied in the inverter circuit. However, the flyback inverter controlled by boundary conduction mode (BCM) PFC IC will cause a high third harmonic component from the analysis. Hence, the third harmonic injection method is estimated and analyzed to improve the output current total harmonic distortion. Finally, a 300W grid-connected flyback micro-inverter with BCM control based on L6561 PFC controller is implemented to verify the feasibility. Input voltage is 20V to 40V and the peak power is 300 W from PV simulator, and the output voltage is 220Vac/60Hz. The highest efficiency of the micro-inverter is 92.8%.

引用

页码：294 / 300

页数：7

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