多级直流微电网的惯性融合控制技术

付媛; 林红杉; 张祥宇; 刘承帅

doi:10.19912/j.0254-0096.tynxb.2025-0110

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (6) : 34-46. DOI: 10.19912/j.0254-0096.tynxb.2025-0110

多级直流微电网的惯性融合控制技术

付媛¹, 林红杉¹, 张祥宇¹, 刘承帅²

作者信息 +

INERTIAL FUSION CONTROL TECHNOLOGY OF MULTI-VOLTAGE-LEVEL DC MICROGRID

Fu Yuan¹, Lin Hongshan¹, Zhang Xiangyu¹, Liu Chengshuai²

Author information +

文章历史 +

摘要

为满足不同电压等级与不同动态工况的惯性需求,该文提出一种多级直流微电网的惯性融合控制技术。首先,建立多电压等级直流微电网模型,分析各级直流系统的惯性特性;其次,以同时获取各级系统最大惯性为目标,考虑连于高压侧母线的蓄电池和新能源侧换流器,分别通过增加输出电流前馈控制与减载分组控制参与惯性调节,低压侧通过与母线连接的负荷侧换流器,采用基于线性自抗扰技术的惯性控制抑制电压波动,使具备惯性调节能力的各换流器参与直流微电网的惯性分级融合,并设计各端惯性参数;最后,搭建多级直流微电网半实物仿真平台,验证所提控制策略的有效性。

Abstract

To meet the inertia requirements of different voltage levels and dynamic operating conditions, this paper proposes an inertial fusion control technology of multi-voltage-level DC microgrid. Initially, a model of a multi-voltage-level DC microgrid is established, and the inertia characteristics of various levels of DC systems are analyzed. Subsequently, aiming to maximize inertia in each system level, the paper considers the involvement of battery storage and renewable energy side converters connected to the system bus. These are engaged in inertia regulation through increased output current feed-forward control and grouped adaptive control. Meanwhile, the low-voltage side use inertia control based on observation compensation with converters connected to their load side to suppress fluctuations. This approach allows converters with inertia regulation capabilities to participate in the graded fusion of inertia in the DC microgrid and designs the inertia parameters for each end. Finally, a multi-voltage-level DC microgrid hardware-in-the-loop simulation platform is constructed to validate the effectiveness of this control strategy.

导出引用

付媛, 林红杉, 张祥宇, 刘承帅. 多级直流微电网的惯性融合控制技术[J]. 太阳能学报. 2026, 47(6): 34-46 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0110

Fu Yuan, Lin Hongshan, Zhang Xiangyu, Liu Chengshuai. INERTIAL FUSION CONTROL TECHNOLOGY OF MULTI-VOLTAGE-LEVEL DC MICROGRID[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 34-46 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0110

中图分类号： TM46

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