电动公交车匀速下长坡再生制动控制策略优化  

Optimization of Regenerative Braking Control Strategy for Long Downhill Running of Electric Bus at Constant Speed

作　　者：李华鑫 张光德[1] 马强 LI Huaxin;ZHANG Guangde;MA Qiang(School of Automobile and Traffic Engineering, Wuhan University of Science and Technology,Wuhan 430081, China;School of Automotive and Traffic Engineering, Hubei University of Arts and Science,Xiangyang 441053, China)

机构地区：[1]武汉科技大学汽车与交通工程学院,湖北武汉430081 [2]湖北文理学院汽车与交通工程学院,湖北襄阳441053

出　　处：《电机与控制应用》2019年第5期113-119,共7页Electric machines & control application

基　　金：湖北省技术创新专项(重大项目)(2016AAA051)

摘　　要：针对电动公交车下长坡再生制动过程中被控对象存在汽车质量、汽车旋转质量换算系数不确定性以及电机参数摄动的问题,构建了电动公交车再生制动系统模型。基于线性矩阵不等式(LMI)设计了H∞鲁棒最优控制器,并在MATLAB/Simulink中进行了仿真。结果表明:采用H∞鲁棒最优控制比传统的车速-电流双闭环PI控制具有更好的鲁棒稳定性,且回馈的能量提高了2%~3%。For the problems of the uncertainty of the vehicle mass and the conversion coefficient of the bus’ rotating mass, and the parameter perturbation of the motor during the regenerative braking process of the electric bus during long downhill running, the model of the electric bus regenerative braking system was constructed. The H ∞ robust optimal controller was designed based on the linear matrix inequality (LMI), and simulated in MATLAB/Simulink. The simulation results showed that the H ∞ robust optimal control had better robust stability than the traditional speed-current speed-current double-closed-loop PI control, and the feedback energy was increased by 2 %~3 %.

关 键 词：不确定性 再生制动 线性矩阵不等式 H∞鲁棒最优控制 

分 类 号：U469.72[机械工程—车辆工程]