H. Djeghloud, O. Guellout, M. Larakeb, O. Bouteldja, S. Boukebbous, A. Bentounsi
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引用次数: 4

摘要

本文描述了在小型并网光伏系统上进行的实际研究。这项研究是在阿尔及利亚康斯坦丁第一大学技术科学学院电工系的车间进行的,使用安装在车间屋顶上的光伏板。研究了基于直流升压斩波器和双电平电压逆变器的转换链的实现。基于磁滞技术类比地设计了直流斩波器的控制电路。采用短路电流法确定了最大功率点,并进行了基准电流的测定。该双电平逆变器采用基于载波的PWM在兼容MATLAB/Simulink软件的dSPACE板接口中实现。为了储存产生的光伏能量,使用了四块酸性硫酸电池。所实现的转换链与电压极低的电网相互连接。给出的实际结果主要集中在模拟MPPT迟滞控制器输出和基于数字载波的PWM控制器输出。所得结果似乎与所提出的理论完全一致,很有前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Practical study of a laboratory undersized grid-connected PV system
This paper portrays a practical study performed on an undersized grid-connected PV system. The study was achieved in the workshop of the Electrotechnics Department of the Faculty of Technological Sciences-University Constantine 1, Algeria, using the PV panels installed on the roof of the workshop. The study concerned the realization of a conversion chain based on a DC boost chopper and a two-level voltage inverter. The control circuit of the DC chopper was analogically performed on the basis of the hysteresis technique. The method of the short-circuit current was used for determining the MPPT and carrying out the reference current. The two-level inverter was numerically controlled using a carrier-based PWM implemented in a dSPACE board interface compatible with MATLAB/Simulink software. For storing the produced PV energy, four acid sulfuric batteries were utilized. The realized conversion chain was interconnected with a grid of a very low voltage. The presented practical results focused on the analogical MPPT hysteresis controller output and the digital carrier-based PWM controller output. The obtained results seem to be in perfect agreement with the presented theory and to be very promising.
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