电动汽车模块化充电系统的自适应预定性能控制  

Adaptive predefined performance control of modular charging system for electric vehicles

作　　者：吴忠强[1] 张长兴 WU Zhong-qiang;ZHANG Chang-xing(School of Electrical Engineering,Yanshan University,Qinhuangdao Hebei 066000,China)

机构地区：[1]燕山大学电气工程学院,河北秦皇岛066000

出　　处：《控制理论与应用》2025年第2期395-402,共8页Control Theory & Applications

基　　金：省级重点实验室绩效补助经费项目(22567612H)资助.

摘　　要：针对电动汽车的模块化充电系统,本文提出一种自适应预定性能控制器,以解决负载变化引起的电压突变问题.首先,引入障碍Lyapunov函数并结合反步法设计控制器,以确保系统的输出电压能够限制在设定范围内;其次,考虑电动汽车接入和离开时负载的变化情况,设计了一个有限时间负载估计器来估计负载的变化,给出了输出电压有界及稳定性的严格证明;最后,通过与传统PID和有限时间控制器对比,验证了所设计控制器的有效性.In this paper,a predetermined performance controller is proposed for a modular charging system for electric vehicles to solve the problem of sudden voltage changes caused by changes in the load.Firstly,a barrier Lyapunov function is introduced and combined with the backstepping method to design the controller to ensure that the output voltage of the system can be limited to a set range.Secondly,consider the load changes when the electric vehicle is connected and left,a finite time load estimator is designed to estimate the load variation.A rigorous proof of bounded output voltage and stability is given.Finally,the effectiveness of the designed controller is verified by comparison with conventional PID and finite-time controllers.

关 键 词：电动汽车 障碍Lyapunov函数 模块化充电系统 预定性能控制 

分 类 号：U46[机械工程—车辆工程]