电动汽车调速系统加速度变结构鲁棒控制  

Variable Structure Robust Control for Acceleration of Electric Vehicles Speed Governing System

作　　者：张志秀[1] 张懿[2] 魏海峰[2] 

机构地区：[1]山东轻工业学院机械工程学院,山东济南250353 [2]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《电气自动化》2009年第1期13-16,共4页Electrical Automation

基　　金：江苏省研究生培养创新工程(CX07B_117z)

摘　　要：针对电动汽车调速系统负载转矩的未知时变特性,设计了一种扰动观测器对负载转矩扰动进行观测及补偿。在此基础上,设计了滑模变结构控制器对预定的速度及加速度曲线进行跟踪控制,并利用其对扰动不敏感特性来抑制各种干扰的影响,以提高系统的鲁棒性和控制性能。仿真试验表明,所设计的控制器具有较高的速度、加速度跟踪精度和较好的动态性能,且对负载变化、参数摄动等内外扰动的鲁棒性较好,满足电动汽车调速系统的控制要求。A disturbance observer is proposed for speed control system of electric vehicles with uncertain load. In order to improve the robustness and performance of the system , a sliding mode variable structure controller is designed to conduct the scheduled speed and acceleration curve tracking control and to weaken the impact on the system made by the disturbance. Simulation results verified that the designed controller shows robustness to the load disturbance and system parameter uncertainty, which has a high velocity and acceleration tracking accuracy. The control strategy is effective and it can meet the requirements of the electric vehicles speed governing system.

关 键 词：电动汽车 加速度 扰动观测器 滑模变结构 鲁棒性 

分 类 号：U262.42[机械工程—车辆工程] TP273[交通运输工程—载运工具运用工程]