洪建军,顾益磊,郑振华,谢永胜,毛俊强,齐宗强
HONG Jianjun,GU Yilei,ZHENG Zhenhua,XIE Yongsheng,MAO Junqiang,QI Zongqiang

• 1:国网浙江省电力有限公司衢州供电公司
• 2:国网浙江省电力有限公司
• 3:东南大学电气工程学院

摘要(Abstract)：

随着分布式光伏与风电在主动配电网中渗透率的提高，系统功率波动加剧，交直流母线电压频繁越限，对配电网安全稳定运行构成挑战。为此，以含高比例风光储的交直流混合主动配电网为应用场景，建立包含光伏、储能、风机、负荷及双向变换器的系统模型，分析功率波动对配电网电压的影响机理，提出一种改进的分布式电压协同控制策略。该策略在直流侧采用具备误差驱动型自适应扩张状态观测器的自抗扰控制，增强对时变扰动的估计与补偿能力；在交流侧设计模糊神经网络控制器，实现逆变器电压环参数的自适应优化；同时，通过功率前馈机制将交流侧波动信息传递至直流侧储能控制器，实现交直流双侧协同调节。最后，基于MATLAB/Simulink的仿真结果，验证了该协同控制策略在提升主动配电网电压稳定性方面的可行性与有效性。
With the increasing penetration of distributed photovoltaic and wind power in active distribution networks, system power fluctuations are intensified, leading to frequent voltage violations on both AC and DC buses and posing challenges to the safe and stable operation of distribution networks. To address this issue, an AC/DC hybrid active distribution network with a high proportion of wind, photovoltaic, and energy storage resources is taken as the application scenario. A system model is developed that includes photovoltaic units, energy storage systems, wind turbines, loads, and bidirectional converters. The mechanism by which power fluctuations influence distribution network voltage is analyzed. Based on this, an improved distributed voltage coordinated control strategy is proposed. On the DC side, an active disturbance rejection control scheme based on an error-driven adaptive extended state observer is adopted to enhance the estimation and compensation capability for time-varying disturbances. On the AC side, a fuzzy neural network controller is designed to achieve adaptive optimization of inverter voltage loop parameters. Meanwhile, a power feedforward mechanism is introduced to transmit AC-side fluctuation information to the DC-side energy storage controller, enabling coordinated regulation between the AC and DC subsystems. Finally, simulation results based on MATLAB/Simulink verify the feasibility and effectiveness of the proposed strategy in improving voltage stability in active distribution networks.

关键词(KeyWords)： 主动配电网;分布式电压控制;自抗扰控制;模糊神经网络控制;协同控制
active distribution network;distributed voltage control;active disturbance rejection control;fuzzy neural network control;coordinated control

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52477082)

作者(Author): 洪建军,顾益磊,郑振华,谢永胜,毛俊强,齐宗强
HONG Jianjun,GU Yilei,ZHENG Zhenhua,XIE Yongsheng,MAO Junqiang,QI Zongqiang

DOI: 10.19585/j.zjdl.202603003

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