湖南电力 ›› 2026, Vol. 46 ›› Issue (2): 84-92.doi: 10.3969/j.issn.1008-0198.2026.02.011

• 多能互补与储能 • 上一篇    下一篇

基于改进线性自抗扰的光储直流微电网电压协调控制策略

李圣清1,2, 童开鑫1, 曾进辉1, 王湘东1, 赵梦娣1   

  1. 1.湖南工业大学电气与信息工程学院,湖南 株洲 412007;
    2.湖南信息学院电子科学与工程学院,湖南 长沙 410151
  • 收稿日期:2025-10-09 修回日期:2025-11-14 出版日期:2026-04-25 发布日期:2026-05-09
  • 通信作者: 童开鑫(2000),男,硕士研究生,研究方向为微电网理论及光伏微电网控制。
  • 作者简介:李圣清(1961),男,博士,教授,研究方向为电能质量、微电网理论及光伏并网技术等。曾进辉(1981),男,博士,教授,研究方向为直流配电网、电能变换和新能源并网控制与优化等。王湘东(2000),男,硕士研究生,研究方向为光伏并网控制及逆变器稳定性研究。赵梦娣(1999),女,硕士研究生,研究方向为微电网理论及光伏微电网控制。
  • 基金资助:
    国家自然科学基金项目(52377185);湖南省教育厅重点项目(24A0748)

Voltage Coordination Control Strategy of Photovoltaic Storage DC Microgrid Based on improved Linear Ac‍tive Disturbance Rejection

Li Shengqing1,2, TONG Kaixin1, ZENG Jinhui1, WANG Xiangdong1, ZHAO Mengdi1   

  1. 1. School of Electrical and information Engineering, Hunan University of Technology, Zhuzhou 412007, China;
    2. School of Electronic Science and Engineering, Hunan University of information Technology, Changsha 410151, China
  • Received:2025-10-09 Revised:2025-11-14 Online:2026-04-25 Published:2026-05-09

摘要: 针对光储直流微电网母线电压易受系统内外条件变化引起振荡的问题,提出一种改进线性自抗扰控制(improved linear active disturbance rejection control,iLADRC)策略。首先,在传统线性自抗扰控制中增加一个串联校正环节,通过消除扩张状态观测器的稳态误差来提高扩张状态观测器的观测精度。其次,在电压外环控制中引入前馈自抗扰控制,从电压外环引出一条正反馈通道,对电压外环输出的参考电流进行补偿,实现信号的无差跟踪,提高混合储能控制系统的控制性能和响应速度,降低直流母线电压的超调量,缩短了调节时间。最后,通过MATLAB搭建直流微电网仿真模型,结果显示改进线性自抗扰控制的超调更小,稳定时间更短,证明了所提控制策略的有效性。

关键词: 直流微电网, 协调控制, 线性自抗扰控制, 混合储能

Abstract: in order to solve the problem of bus voltage oscillation caused by the fluctuation of light intensity and load abrupt change in photovoltaic storage DC microgrid, an iLADRC strategy is proposed. In this paper, a series correction link is added to the traditional improved linear active disturbance rejection control, and the observation accuracy of the extended state observer is improved by eliminating the steady-state error of the dilated state observer. Secondly, the feedforward active disturbance rejection control is introduced into the voltage outer loop control, and a positive feedback channel is drawn from the voltage outer loop to compensate the reference current output of the voltage outer loop, so as to realize the error-free tracking of the signal, improve the control performance and response speed of the hybrid energy storage control system, and reduce the overshoot and adjustment time of the DC bus voltage. finally, the simulation model of DC microgrid is built by MATLAB, and the results show that the overshoot of the improved linear active disturbance rejection control is smaller and the stabilization time is shorter, which proves the effectiveness of the control strategy proposed in this paper.

Key words: DC microgrid, coordinated control, linear active disturbance rejection control, hybrid energy storage

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