z源逆变器控制器改进并网光伏系统

2023 IEEE International Conference on Advanced Systems and Emergent Technologies (IC_ASET) Pub Date : 2023-04-29 DOI:10.1109/IC_ASET58101.2023.10151231

Salah Anis Krim, H. Afghoul, F. Krim, Feriel Abdelmalek, Djallal Eddine Zabia, Taha Lamdjed Belahcene

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引用次数: 0

摘要

本文提出了一种采用三相阻抗源逆变器(ZSI)的光伏(PV)系统，通过优化PWM信号来降低谐波。与传统逆变器相比，该逆变器的优点之一是具有升压能力。ZSI可以根据其结构增加输出电压。ZSI具有独特的通射(ST)操作功能，允许短路逆变器的一个分支的开关，从而消除开关死区时间，以提高输出性能。本文根据ZSI的特点，通过对PWM信号进行优化，降低了系统输出波形中的总谐波失真(THD)值，最终改善了系统输出波形中的电能质量。利用MATLAB/Simulink软件进行了仿真。

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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Enhancement of Z-Source Inverter Controller for Improvement of Grid-tied PV systems

This paper presents a photovoltaic (PV) system using a three-phase impedance source inverter (ZSI) by optimizing PWM signals to reduce harmonics. One of the advantages of this inverter compared to traditional inverters is to have buck-boost capability. ZSI can increase the output voltage according to its structure. ZSI has the unique feature of shoot-through (ST) operation, which allows short-circuiting the switches of one leg of the inverter, thereby eliminating switching dead time to improve output performance. According to the characteristics of the ZSI, in this paper, by optimizing the PWM signals, the total harmonic distortion (THD) value is reduced and ultimately improves the power quality in the output waveform of the system. The simulation results are obtained using MATLAB/Simulink software.

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来源期刊

2023 IEEE International Conference on Advanced Systems and Emergent Technologies (IC_ASET)

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