直流微电网的简化分布式自触发控制  

Simplified distributed self⁃triggered control for DC microgrids

作　　者：向建新 何晋[1,2] XIANG Jianxin;HE Jin(College of Electrical Information Engineering,Yunnan Minzu University,Kunming 650000,China;Yunnan Key Laboratory of Unmanned Autonomous System,Yunnan Minzu University,Kunming 650000,China)

机构地区：[1]云南民族大学电气信息工程学院,云南昆明650000 [2]云南民族大学云南省无人自主系统重点实验室,云南昆明650000

出　　处：《现代电子技术》2025年第8期75-83,共9页Modern Electronics Technique

基　　金：国家自然科学基金项目(52061042);云南省基础研究专项(202401CF070073);云南民族大学研究生科研创新基金项目(2024SKY123)。

摘　　要：直流微电网中的分布式二次控制常采用动态一致性算法来估测电压和电流的平均值,针对当前控制方法所需通信和计算频率高,以及改进下垂控制依旧无法完全克服传统下垂控制的缺点,提出一种基于动态一致性算法的直流微电网简化分布式自触发控制策略。初级控制采用电压电流双闭环控制,二次控制只采用一个积分控制器,极大地简化了控制结构,减轻了通信负担。利用李雅普诺夫稳定性设计一个分布式自触发的通信和更新机制,并设计了触发时间修正方法来提高自触发响应速度。最后,基于Matlab/Simulink验证了所提控制策略在各种干扰下的稳定性和有效性。In DC microgrids,distributed secondary control commonly employs dynamic consensus algorithms to estimate the average values of voltage and current.In light of the high communication and computation frequency required by current control methods and the fact that improved droop control still cannot completely overcome the drawbacks of traditional droop control,a simplified distributed self-triggered control strategy for DC microgrids based on dynamic consensus algorithms is proposed.The primary control adopts a dual-loop control of voltage and current,while the secondary control employs only a single integral controller,significantly simplifying the control structure and reducing communication overhead.Leveraging Lyapunov stability,a distributed self-triggered communication and update mechanism is designed,along with a trigger time correction method to enhance self-triggered response speed.The stability and effectiveness of the control strategy are validated under various disturbances using Matlab/Simulink.

关 键 词：多母线直流微电网 分布式控制 自触发控制 动态一致性 双闭环控制 事件触发 

分 类 号：TN919-34[电子电信—通信与信息系统] TM727[电子电信—信息与通信工程]