升级多电平逆变器的MPPT混合独立式光伏系统建模与仿真

A. Rout, S. Samantara, G. Dash, S. Choudhury, R. Sharma, B. Dash
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引用次数: 9

摘要

本文利用MATLAB/SIMULINK对一个具有升级多电平逆变器的独立光伏系统进行了建模和仿真。该模型包括一个25电平逆变器,该逆变器声称总谐波失真(THD)降低到约3%。所提出的25电平逆变器仅使用12个开关,这比二极管箝位、电容箝位和级联h桥多电平逆变器(MLI)的开关数量要少得多。本文采用混合MPPT提取不同辐照度下PV串/电池的最大功率。并对采用升压变换器和不采用升压变换器的光伏系统的THD进行了比较分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling and simulation of hybrid MPPT based standalone PV system with upgraded multilevel inverter
This paper presents modeling and simulation of a standalone PV (Photo-Voltaic) system with upgraded multilevel Inverter using MATLAB/SIMULINK. The modeling includes a 25 level inverter which claims that the total harmonic distortion (THD) reduced to approximately 3%. The proposed 25 level inverter uses only 12 numbers of switches which is very less than that of diode clamped, capacitor clamped and cascaded H-Bridge multilevel inverter (MLI). In this paper a hybrid MPPT is used to extract maximum power from PV string/Cell at different irradiance. It also gives a comparative analysis of THD with and without Boost converter based PV system.
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