并网逆变器滤波器对网络阻抗和谐波的影响

2020 International Conference on Electrical Engineering and Control Technologies (CEECT) Pub Date : 2020-12-01 DOI:10.1109/CEECT50755.2020.9298572

Moeketsi Tsosane, P. Freere, A. Roberts

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引用次数: 0

摘要

光伏逆变器中的滤波器在衰减高频谐波和改善从光伏板向电网传输的电能质量方面起着至关重要的作用。逆变器滤波器构成逆变器输出阻抗的一部分，即使逆变器不产生任何有功功率，也可以连接到电网。本文主要研究逆变器滤波器对低压(LV)网络阻抗的影响，并评估现有谐波电流和电压的变化。评估了逆变器滤波器在光伏能量高度扩散的情况下对电网串联和并联谐振阻抗的影响，包括由此导致的谐波电流变化和电压畸变。

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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Impact Of Grid Connected Inverter Filters On Network Impedance And Harmonics

Filters in photovoltaic inverters play a vital role of attenuating high frequency harmonics and improving the quality of the power transferred from the photovoltaic (PV) panels to the grid. Inverter filters form part of the inverter output impedance and can be connected to the grid even if the inverter does not produce any active power. This paper focuses on the impact of inverter filters on the low voltage (LV) network impedance and assess the change in existing harmonic current and voltages. The impact of inverter filters on the network series and parallel resonance impedance assuming high proliferation of PV energy is assessed, including the resulting change in flow of harmonic current and voltage distortions.

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2020 International Conference on Electrical Engineering and Control Technologies (CEECT)

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