Implementation of Various Modulation Techniques to a PV Fed Solar Inverter with High Gain DC-DC Converter in Standalone Applications

2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT) Pub Date : 2022-09-23 DOI:10.1109/GlobConPT57482.2022.9938321

G. Kishore, D. Pavan, M. Aravind

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Abstract

The installed capacity of solar power producing systems has expanded during the past several decades. As a result of varying weather conditions, the output of a PV array is often an unregulated DC supply. Using a high step-up DC-DC converter, the maximum power is monitored in response to temperature and irradiance. This converter can increase more voltage than a traditional boost converter, and as a result, the switch is subjected to little stress. The incremental conductance approach achieves maximum power point tracking (MPPT). The incremental conductance technique enhances efficiency and can follow any parameter change. The output of high step-up DC-DC converter is the input to the inverter. Various pulse width modulation methods are used to a diode-clamped multilevel inverter in this study. MATLAB is used throughout the whole process of designing and developing the system. The outcomes of the simulation show that the MPPT algorithm may operate well with a number of different Pulse Width Modulation strategies when applied to a five-level diode clamped multi-level inverter in stand alone system.

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各种调制技术在具有高增益DC-DC转换器的PV - Fed太阳能逆变器中的实现

在过去的几十年里，太阳能发电系统的装机容量不断扩大。由于天气条件的变化，光伏阵列的输出通常是不稳定的直流电源。采用高升压DC-DC转换器，根据温度和辐照度监测最大功率。这种转换器可以增加比传统升压转换器更多的电压，因此，开关受到的压力很小。增量电导法实现了最大功率点跟踪(MPPT)。增量电导技术提高了效率，并能适应任何参数的变化。高升压DC-DC变换器的输出是逆变器的输入。本研究将不同的脉宽调制方法应用于二极管箝位的多电平逆变器。在整个系统的设计和开发过程中都使用了MATLAB。仿真结果表明，将MPPT算法应用于独立系统中的五电平二极管箝位多电平逆变器，可以在多种不同的脉宽调制策略下良好地工作。

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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2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)

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