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基于卡尔曼滤波与广义平均法的电网电压基波及谐波分量检测

Detection of Grid Voltage Fundamental and Harmonic Components Using Kalman Filter and Generalized Averaging Method

语言:

中文摘要

单相和三相并网变换器的稳定运行依赖于与电网的精确同步。本文针对电网电压基波及正序分量的快速、精确提取难题,提出了一种基于改进卡尔曼滤波与广义平均法的新型检测技术,旨在提升复杂电网环境下的同步性能。

English Abstract

The proper operation of single-phase and three-phase grid-connected power converters depends on the synchronization with utility networks. The major challenge of the synchronization is how to quickly and precisely extract the ac signal and fundamental positive sequence in single- and three-phase power systems, respectively. This paper proposes a new detection technique based on a modified Kalman f...
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SunView 深度解读

该技术对阳光电源的核心产品线(组串式/集中式光伏逆变器及PowerTitan/PowerStack储能变流器)具有极高的应用价值。在弱电网环境下,电网电压畸变和频率波动对逆变器的同步控制提出了严峻挑战。该算法通过卡尔曼滤波实现对基波和谐波的精准分离,有助于提升阳光电源产品在复杂电网条件下的抗干扰能力和电能质量。建议研发团队将其集成至iSolarCloud智能运维平台及逆变器底层控制算法中,特别是针对构网型(GFM)储能变流器,以增强系统在弱电网下的稳定运行能力和黑启动性能。