基于PDM逆变器的光伏发电I-V特性测量系统

A. Sandali, A. Chériti
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引用次数: 0

摘要

本文提出了一种表征光伏板的新方法。使用的电力电子变换器是脉冲密度调制(PDM)逆变器。在这种方法中,逆变器扮演了两个角色:首先,它是一个直流电感模拟器。其次,它允许电感和电容负载方法之间的组装。PDM逆变器适合在非常高的开关频率下工作。在这种应用中,它避免了制作大直流电流直流电感的困难,并且控制仍然非常简单。这是基于该方法提高示踪剂的功率,功率密度和速度的资产。与基于DC-DC转换器的方法相比,这种方法的主要缺点是使用了两倍的半导体元件。但是这个缺点可以通过增加反应性组件来弥补。最后给出了系统的仿真和实验结果。
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I-V Characteristics Measuring System for PV Generator based on PDM Inverter
This paper presents a new method to characterize photovoltaic panels. The power electronic converter used is a Pulse Density Modulation (PDM) inverter. In this method, the inverter plays two roles: First, it is a DC inductor emulator. Second, it allows assembly between inductive and capacitive load methods. The PDM inverter is adapted to operate at very high switching frequency. In this application, it avoids the difficulties of making DC inductors with high DC current and its control remains very simple. This is an asset for increasing the power, power density and rapidity of tracers based on this method. The main disadvantage of this method, compared to methods based on DC-DC converter, is the use of twice as many semiconductor components. But this disadvantage can be compensated by a gain on reactive components. The simulations and experimental results of the proposed system are shown.
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来源期刊
Renewable Energy and Power Quality Journal
Renewable Energy and Power Quality Journal Energy-Energy Engineering and Power Technology
CiteScore
0.70
自引率
0.00%
发文量
147
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