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带非线性LC滤波器的并网逆变器自适应控制

Adaptive Control of Grid-Connected Inverters With Nonlinear LC Filters

语言:

中文摘要

分布式发电中,逆变器是核心能量转换设备。本文研究了非线性LC滤波器在并网逆变器中的应用。由于非线性电感B-H曲线特性,LC滤波器表现出非线性,本文提出了一种自适应控制策略以优化其并网性能。

English Abstract

Distributed generation is an effective solution to clean, reliable, and cost-efficient energy supply. In this framework, inverters play a key role as energy converters. Accordingly, this article investigates the utilization of nonlinear inductive–capacitive (LC) filters for grid-connected inverters. Nonlinear LC filters are made of inductors with nonlinear B–H curves, which makes them have a small...
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SunView 深度解读

该研究直接关联阳光电源的核心产品——组串式及集中式光伏逆变器。在光伏电站中,为了降低成本和体积,电感元件常工作在磁饱和临界区,表现出非线性特征。该自适应控制策略能有效补偿非线性电感带来的谐波畸变,提升电能质量。建议研发团队将其应用于新一代组串式逆变器,特别是在高功率密度设计中,通过软件算法补偿硬件非线性,从而在减小磁性元件体积的同时,确保并网电流的低THD,进一步增强产品在复杂电网环境下的稳定性和竞争力。