用于与直流电网相连的光伏系统的电隔离MPPT DC/DC变换器

2015 IEEE 3rd Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE) Pub Date : 2015-11-01 DOI:10.1109/AIEEE.2015.7367300

A. Stepanov

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引用次数: 9

摘要

市场上有很多直流/交流并网逆变器。可以找到独立逆变器，串级DC/AC逆变器以及DC/AC模块级微型逆变器。在市场上很难找到适用于600V直流电网的DC/DC MPPT转换器。尤其是电隔离由于里加技术大学建造的直流微电网“+”和“-”线没有接地(也不能接地)，因此出于安全考虑，最好将电光伏板与直流电网隔离。为此，设计了串级MPPT DC/DC变换器。本文给出了仿真和部分实验结果。

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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Galvanically isolated MPPT DC/DC converter for PV system tied to DC grid

On the market, there are many DC/AC grid-tied inverters. It is possible to find standalone inverters, string level DC/AC inverters as well as DC/AC module level microinverters. Much harder to find available on the market DC/DC MPPT converters for 600V DC grid. Especially with galvanic isolation. As the DC micro grid that is built in Riga Technical University the “+” and “-” wires not grounded (and can not be grounded) so for safety reasons it is better to isolate galvanically photovoltaic panels from DC grid. For this reason there is designed string level MPPT DC/DC converter. Simulation and some experimental results are shown in the paper below.

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2015 IEEE 3rd Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)

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