电动助力系统观测器的分析设计  

Design and Analysis of Observer in Electric Power Steering System

作　　者：陆晶颖 蒋伟 FUJIMURA Y HASHIMOTO Seiji 

机构地区：[1]扬州大学,扬州225127 [2]Gunma University, Gunma 3768515

出　　处：《微特电机》2017年第12期38-40,48,共4页Small & Special Electrical Machines

基　　金：国家自然科学基金项目(51207135,31571765);扬州大学研究生培养创新工程基金项目(SJLX16-0594)

摘　　要：为了获取精确的电动助力转向系统(EPS)状态变量,提出了3种状态观测器,分别为4阶、5阶和6阶的全维观测器。5阶全维观测器加入干扰,6阶全维观测器加入了干扰及干扰变化率。利用MATLAB/Simulink环境对EPS系统进行仿真,利用dSPACE进行硬件在环实验,比较了3种用于EPS系统的状态观测器。实验结果表明,即使在有干扰的情况下,带有5阶全维观测器估算的输入状态量误差最小。To achieve precise state variables of Electric Power Steering （EPS） system, three observers were proposed about 4th order, 5th order and 6th order. Disturbance was added to 5th order observer. Disturbance and the rate of disturb- ance were appended to 6th order observer. Simulations about EPS system in MATLAB/Simulink was conducted. The exper- iment was investigated in dSPACE by hardware in the loop （HIL） simulation test technology. Three observers for the EPS system and evaluates them through simulations and experiments were compared. Experiments show that 5th order observer can estimate the input state variable with minimum error and noise, even though disturbance exists.

关 键 词：电动助力转向系统 观测器 干扰 硬件在环 

分 类 号：TM302[电气工程—电机]