基于谐振滤波器和占空比计算的直流微电网振荡抑制方法

杨苓; 何奇峻; 陈一谦; 廖钧濠; 李毅博; 连晨曦

doi:10.19912/j.0254-0096.tynxb.2024-1329

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (12) : 499-508. DOI: 10.19912/j.0254-0096.tynxb.2024-1329

基于谐振滤波器和占空比计算的直流微电网振荡抑制方法

杨苓, 何奇峻, 陈一谦, 廖钧濠, 李毅博, 连晨曦

作者信息 +

CONTROL METHOD OF DC MICROGRID OSCILLATION SUPPRESSION BASED ON RESONANT FILTER AND DUTY CYCLE CALCULATION

Yang Ling, He Qijun, Chen Yiqian, Liao Junhao, Li Yibo, Lian Chenxi

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文章历史 +

摘要

该文首先提出一种抑制直流微电网母线振荡的控制方法,主要由振荡电流控制环和占空比计算环两个部分构成,有效地提取振荡主频分量并计算所需占空比,具有更好的抑制效果。然后,对系统进行小信号阻抗分析,结果表明该抑制方法能有效削减直流母线谐振峰值,可有效提升系统的稳定性。最后,通过实验验证该方法可有效抑制母线电压振荡。

Abstract

A control method of DC bus oscillation suppression based on duty cycle calculation is proposed in this paper, which is mainly composed of two parts： oscillation current control ring and duty cycle calculation ring, which can effectively extract the main frequency component of oscillation and calculate the required duty cycle, and has a better suppression effect. The small signal impedance analysis of the system shows that the contorl method can effectively reduce the resonant peak of the DC bus and effectively improve the stability of the system. Finally, experiments demonstrate that the method effectively suppresses bus voltage oscillations.

导出引用

杨苓, 何奇峻, 陈一谦, 廖钧濠, 李毅博, 连晨曦. 基于谐振滤波器和占空比计算的直流微电网振荡抑制方法[J]. 太阳能学报. 2025, 46(12): 499-508 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1329

Yang Ling, He Qijun, Chen Yiqian, Liao Junhao, Li Yibo, Lian Chenxi. CONTROL METHOD OF DC MICROGRID OSCILLATION SUPPRESSION BASED ON RESONANT FILTER AND DUTY CYCLE CALCULATION[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 499-508 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1329

中图分类号： TM712

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