摘要
随着微电网规模日益增大,如何快速稳定完成二次控制目标是一个亟待解决的问题。因此首先针对现有微电网中分布式二次控制器的收敛速度问题,提出了一种基于自适应有限时间的分布式二次控制,所提的控制器在不同的场景下,可以通过分布式的方式来获取当前情况下最适合的有限时间控制器的收敛系数,从而加快二次控制的速度。其次针对分布式控制器易受到扰动而无法完成控制目标的问题,设计了基于滑模控制的分布式有限时间控制器来消除扰动影响。然后通过李雅普诺夫函数证明方法分析了所提策略的稳定性和可行性。最后通过MATLAB/Simulink搭建仿真模型,在4个不同的算例下验证了本文所提的控制策略的有效性和可行性。
With the increasing scale of microgrids,the rapid and stable achievement of secondary control objectives is an urgent problem that needs to be addressed.Therefore,a distributed adaptive finite-time control was proposed to tackle the issue of convergence speed of existing distributed secondary controllers in microgrids.The proposed controller,in different scenarios,can obtain the convergence coefficient of the most suitable finite-time controller through a distributed approach,thus accelerating the speed of secondary control.Furthermore,to address the problem of disturbances that can hinder the distributed controller from achieving control objectives,a distributed finite-time controller based on sliding mode control was designed to eliminate the impact of disturbances.The stability and feasibility of the proposed strategy were analyzed using the Lyapunov function proof method.Finally,the effectiveness and feasibility of the proposed control strategy were validated through the construction of simulation models in MATLAB/Simulink,considering four different scenarios.
作者
程勇
姚磊茹
成琦
赵建文
CHENG Yong;YAO Lei-ru;CHENG Qi;ZHAO Jian-wen(College of Electrical and Control Engineering,Xi’an University of Science and Technology,Xi’an 710054,China;Xi’an Key Laboratory of Electrical Equipment Condition Monitoring and Power Supply Security,Xi’an 710054,China)
出处
《科学技术与工程》
北大核心
2024年第14期5822-5830,共9页
Science Technology and Engineering
基金
陕西省自然科学基础研究计划面上项目(2023-JC-YB-308)。
关键词
微电网
分布式二次控制
有限时间
自适应策略
滑模控制
microgrids
distributed secondary control strategy
finite time
adaptive mechanism
sliding mode control
