High-frequency DC link inverter for grid-connected photovoltaic system

被引：20

作者：

Jung, Y ^{[1
]}

Yu, GJ ^{[1
]}

Choi, J ^{[1
]}

机构：

[1] Korea Inst Energy Res, Photovolt Res Team, Taejon 305343, South Korea

来源：

CONFERENCE RECORD OF THE TWENTY-NINTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE 2002 | 2002年

关键词：

D O I：

10.1109/PVSC.2002.1190873

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper proposes an inverter for the grid-connected photovoltaic system based on the transformer-less inverter. This system consists of a high frequency inverter bridge, high frequency transformer, diode bridge rectifiers, a DC filter, a low frequency inverter bridge, and an AD filter. The high frequency inverter bridge switching at 20kHz is used to generate bipolar PWM pulse, which is subsequently rectified by diode bridge rectifiers to result in a full-wave rectified sine wave. Finally, it is unfolded by a low frequency inverter bridge to result in a 60Hz sine wave power output. In this paper, the control algorithm for synchronous current feedback control method and a maximum power point tracking (MPPT) method using DSP are described. And, the simulation and experimental results are shown to verify the validity of the proposed system.

引用

页码：1410 / 1413

页数：4

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