A single-phase grid-connected inverter using a Boost Two-Cell Switching converter with Maximum Power Point Tracking algorithm

2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI:10.1109/ECTICON.2008.4600601

K. Tabaiya, W. Lenwari, C. Prapanavarat

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引用次数: 5

Abstract

This paper proposes a single-phase grid-connected inverter for photovoltaic (PV) systems using a boost two-cell switching (BTCS) converter based on a maximum power point tracking (MPPT) technique. Due to nonlinear I-V characteristic of PV cells, the system must include an algorithm to obtain the maximum power from PV cells at any atmospheric condition. The method used in this paper is the incremental conductance (INC) algorithm. The BTCS converter is selected as a power stage with the two-cell semiconductor switching devices controlled to obtain a maximum power from PV cells. The H-bridge inverter provides a sinusoidal current and synchronizes with the grid voltage. The control of the inverter is based on ramp comparison control with constant switching frequency and zero crossing voltage detectors. The experimental results in a test lab showed the effectiveness of the proposed PV system in both constant and rapidly changing in atmospheric conditions.

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采用最大功率点跟踪算法的升压双单元开关变换器的单相并网逆变器

提出了一种基于最大功率点跟踪(MPPT)技术的升压双单元开关(BTCS)变换器，用于光伏系统的单相并网逆变器。由于光伏电池的非线性I-V特性，该系统必须包含一种在任何大气条件下获得光伏电池最大功率的算法。本文采用的方法是增量电导(INC)算法。选择BTCS转换器作为功率级，控制双电池半导体开关器件以从PV电池获得最大功率。h桥逆变器提供正弦电流并与电网电压同步。逆变器的控制是基于恒定开关频率和过零电压检测器的斜坡比较控制。测试实验室的实验结果表明，该光伏系统在恒定和快速变化的大气条件下都是有效的。

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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来源期刊

2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology

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