基于固定时间滑模的直流微电网一致性控制  

DC microgrid consistency control based on fixed time sliding mode

作　　者：彭子韵 刘永慧[1] PENG Ziyun;LIU Yonghui(School of Electrical Engineering,Shanghai Dianji University,Shanghai 201306,China)

机构地区：[1]上海电机学院电气学院,上海201306

出　　处：《上海电机学院学报》2024年第6期317-323,共7页Journal of Shanghai Dianji University

基　　金：国家自然科学基金资助项目(61803253)。

摘　　要：针对含多组蓄电池储能单元的直流微电网系统,为抑制负载波动以及恒功率负载造成的母线电压振荡问题,提出了一种基于固定时间滑模的直流微电网系统的一致性控制方法。首先,建立直流微电网系统储能的数学模型,其中包含恒功率负载和储能单元;其次,根据一致性算法获得平均母线电压;然后,构造固定时间滑模控制器,同时分析系统稳定性;最后,以含有恒功率负载和多组蓄电池储能单元的直流微电网系统为例进行仿真。结果表明:所提出的控制方法相较于传统方法在应对负载波动导致母线电压失稳的问题上,具有更好的鲁棒性和可靠性。To address the issue of bus voltage oscillations caused by load fluctuations and constant power loads in a DC microgrid system with multiple battery energy storage units,a consensus control method based on fixed-time sliding mode is proposed.First,a mathematical model of energy storage in the DC microgrid system is established,which includes constant power loads and energy storage units.Next,the average bus voltage is obtained using a consensus algorithm.Then,a fixed-time sliding mode controller is designed,and the system stability is analyzed.Finally,simulations are conducted using a DC microgrid system that includes constant power loads and multiple battery energy storage units.The results show that the proposed control method demonstrates better robustness and reliability in dealing with bus voltage instability caused by load fluctuations,compared to traditional methods.

关 键 词：直流微电网 恒功率负载 一致性算法 固定时间滑模控制 

分 类 号：TM711[电气工程—电力系统及自动化]