光伏并网逆变器采用双开关降压升压变换器

Conference Record of the Twenty-Ninth IEEE Photovoltaic Specialists Conference, 2002. Pub Date : 2002-05-19 DOI:10.1109/PVSC.2002.1190902

K. Chomsuwan, P. Prisuwanna, V. Monyakul

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引用次数: 82

摘要

提出了一种两级光伏并网逆变器。第一级是执行各种功能的双开关降压升压电路;跟踪光伏阵列的最大功率点并采用定频电流模式控制技术控制电流;以及将直流波形转换为绝对正弦波形。第二级是h桥开关，它将绝对正弦波形转换为具有低谐波失真电流的正弦波形并连接到公用事业。采用单片机DSP控制器，系统配置可靠。实验结果与仿真结果吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Photovoltaic grid-connected inverter using two-switch buck-boost converter

This paper presents a two-stage photovoltaic grid-connected inverter. The first stage is a two-switch buck-boost circuit that performs various functions; tracking a maximum power point of the photovoltaic array and controlling current using fixed frequency current mode control technique; as well as reforming a direct current waveform to an absolute sinusoidal waveform. The second stage is a H-bridge switch that converts an absolute sinusoidal waveform to a sinusoidal waveform with a low harmonic distortion current and connected to utility. The system configuration is reliable using a single-chip DSP controller. Experimental results satisfy with simulation.

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Conference Record of the Twenty-Ninth IEEE Photovoltaic Specialists Conference, 2002.

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