Bus Voltage Fluctuation Suppression Strategy for DC Distribution Network Based on Improved Active Disturbance Rejection Control

BAO Weiqi; HAN Minxiao; ZHANG Li; HAO Lingjing; WANG Shiji

doi:10.13296/j.1001-1609.hva.2026.10.016

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Bus Voltage Fluctuation Suppression Strategy for DC Distribution Network Based on Improved Active Disturbance Rejection Control

Research & Analysis | 更新时间：2026-10-14

- Bus Voltage Fluctuation Suppression Strategy for DC Distribution Network Based on Improved Active Disturbance Rejection Control
- High Voltage Apparatus Vol. 62, Issue 10, Pages: 132-139(2026)
- 作者机构：
  
  华北电力大学电气与电子工程学院，北京 100096
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.10.016
  CLC：
- Received：10 May 2026，
  
  Revised：2026-07-01，
  
  Published：16 October 2026
- 稿件说明：
移动端阅览
BAO Weiqi, HAN Minxiao, ZHANG Li, et al. Bus Voltage Fluctuation Suppression Strategy for DC Distribution Network Based on Improved Active Disturbance Rejection Control[J]. High Voltage Apparatus, 2026, 62(10): 132-139.
DOI：

BAO Weiqi, HAN Minxiao, ZHANG Li, et al. Bus Voltage Fluctuation Suppression Strategy for DC Distribution Network Based on Improved Active Disturbance Rejection Control[J]. High Voltage Apparatus, 2026, 62(10): 132-139. DOI： 10.13296/j.1001-1609.hva.2026.10.016.

摘要

针对直流配电网受到间歇性电源输出功率及负荷投切等扰动造成的直流母线电压波动，提出了一种改进型线性自抗扰控制策略。首先，建立换流器系统的数学模型。然后在传统线性自抗扰控制器中引入电流前馈，并改进扩张状态观测器，通过理论分析证明了稳定性方面的优势。最后在不同工况下对各种控制方式进行仿真及实验验证。结果表明，所提控制策略较PI双环控制和传统线性自抗扰控制具有更加良好的动态特性，对抑制直流配电网母线电压波动具有实际应用价值。

Abstract

To address the DC bus voltage fluctuations caused bydisturbances such as intermittent power supply output power variations and load switching in DC distribution network

an improved linear active disturbance rejection control strategy is proposed. First

the mathematical model of the converter system is set up. Then

the current feedforward is introduced into the traditional linear active disturbance rejection control and the extended observer is improved. The advantages of the proposed method in terms of stability is demonstrated by theoretical analysis. Finally

simulation and experiments for various control modes are performed under different operating conditions. The results show that the proposed control strategy has better dynamic characteristics than PI doubleloop control and traditional linear active disturbance rejection control

and has practical application value for suppressing the bus voltage fluctuation of DC distribution networks.

关键词

Keywords

references

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