| 引用本文: | 张玉芳,赵婵娟,程志友,等.考虑通信拓扑切换的微电网有限时间分布式二级控制[J].电力系统保护与控制,2023,51(8):149-159. |
| ZHANG Yufang,ZHAO Chanjuan,CHENG Zhiyou,et al.Distributed finite-time secondary control of a microgrid with communication topology switching[J].Power System Protection and Control,2023,51(8):149-159 |
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| 摘要: |
| 孤岛微电网在运行过程中对其输出电压、频率控制有较高的实时性要求。考虑孤岛微电网运行过程中易受负载投切、通信拓扑切换等多种干扰的影响，提出了一种改进的考虑通信拓扑切换的微电网有限时间分布式二级控制方法，实现孤岛微电网输出电压、频率的有限时间调节控制。首先，在传统的有限时间控制算法中加入一项幂指数为1的跟踪误差控制项，构建孤岛微电网有限时间分布式一致性电压、频率控制算法，并且分别建立闭环随机系统模型。其次，通过Lyapunov稳定性判定方法验证所提方法的稳定性，并计算出有限时间上界表达式。最后，在Matlab/Simulink上通过仿真验证了所提控制方法的有效性。 |
| 关键词: 微电网 有限时间 通信拓扑切换 Lyapunov稳定性判定 |
| DOI：10.19783/j.cnki.pspc.220921 |
| 分类号: |
| 基金项目:安徽省自然科学基金项目资助(2108085QE237)；安徽建筑大学安徽省古建筑智能感知与高维建模国际联合研究中心开放课题项目资助(GJZZX2021KF03)；国家自然科学基金项目资助(51877060)；安徽省高等学校自然科学研究项目资助(KJ2021A0018) |
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| Distributed finite-time secondary control of a microgrid with communication topology switching |
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ZHANG Yufang1, ZHAO Chanjuan1, CHENG Zhiyou1, XU Heng2, SONG Juncai1
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1. School of Internet, Anhui University, Hefei 230039, China; 2. School of Electronic and Information
Engineering, Anhui Jianzhu University, Hefei 230601, China
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| Abstract: |
| Output voltage and frequency control in an islanded microgrid operation has high real-time performance requirements. Considering the impacts of load switching, communication topology switching, and other disturbances for an islanded microgrid, an improved microgrid distributed finite-time secondary control method with communication topology switching is proposed. This can realize finite-time output voltage and frequency regulation. First, by adding a tracking control error term with a power index 1 to the original finite-time control method, the finite-time voltage and frequency consensus algorithms are formulated, and corresponding stochastic closed-loop models are established respectively. Second, a Lyapunov analysis method is presented to verify the stability of the proposed method, and the finite-time upper bound expression is also derived. Finally, the effectiveness of the proposed control is verified by simulation experiments on Matlab/Simulink. |
| Key words: microgrid finite time communication topology switching Lyapunov stability analysis |
