Control of a Single-Switch Two-Input Buck Converter for MPPT of Two PV Strings

被引：0
|
作者：
Urtasun, Andoni [1 ]
Lu, Dylan Dah-Chuan [2 ]
机构：
[1] Publ Univ Navarra UPNA, Dept Elect & Elect Engn, Pamplona, Spain
[2] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia
来源：
2014 AUSTRALASIAN UNIVERSITIES POWER ENGINEERING CONFERENCE (AUPEC) | 2014年
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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, the configuration composed by a Two-Input Buck (TIBuck) converter and a boost inverter is proposed for low-voltage grid-connected PV systems. This configuration is attractive for this application because it has high efficiency and can achieve dual maximum power point tracking (MPPT) with only one active switch. However, in this system, the nonlinear characteristics of the converter and the two PV arrays complicate the control. By means of a small-signal modeling, the control theme of the two PV voltages is formulated and the effect of the nonlinearities is presented. Simulation results are reported to validate the theoretical analysis, showing the dual MPPT capability.
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页数：6
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