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一种用于并网电力电子系统基波与谐波在线检测的快速收敛调制积分观测器

A Fast-Convergent Modulation Integral Observer for Online Detection of the Fundamental and Harmonics in Grid-Connected Power Electronics Systems

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中文摘要

谐波检测是有源电力滤波器的关键。本文提出了一种新型调制函数积分观测器算法,旨在解决单相及三相电力系统中谐波提取的收敛速度与精度问题,为并网电力电子系统的电能质量控制提供了一种高效的观测方案。

English Abstract

Harmonics detection is a critical element of active power filters. A previous review has shown that the recursive discrete Fourier transform and the instantaneous p-q theory are effective solutions to extracting power harmonics in single-phase and three-phase power systems, respectively. This paper presents the operating principle of a new modulation function integral observer algorithm that offer...
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SunView 深度解读

该算法在谐波检测上的快速收敛特性,对阳光电源的组串式光伏逆变器及PowerTitan/PowerStack储能变流器(PCS)具有重要应用价值。在弱电网环境下,电网电压畸变严重,该观测器能提升逆变器对电网谐波的抑制能力,改善并网电能质量。此外,该技术可集成至iSolarCloud平台,用于提升电站侧的电能质量监测精度。建议研发团队评估该算法在构网型(GFM)控制策略中的潜力,以增强系统在复杂电网环境下的稳定运行能力。