摘要
为了降低传统滑模观测器(sliding mode observer,SMO)存在严重的高频抖振、提高转子位置和电机转速估算精度以及降低速度环传统比例积分控制(proportional integral,PI)超调量过大等问题,提出一种基于高阶滑模观测器与新型滑模速度控制器相结合的永磁同步电机无传感器矢量控制方法,用高阶滑模观测器代替传统滑模观测器,用新型滑模转速控制器代替传统比例积分转速控制器。最后通过用MATLAB/simulink进行模型搭建与仿真分析,通过与其他常用的控制方式对比,结果表明新型双滑模控制的控制方式,转速的超调量与抖振更小,转子位置估计更加准确,并基本无抖振,提高了整体的观测精度,抑制了系统的高频抖振,提高了永磁同步电机的动态和稳态响应。
In order to reduce the serious high-frequency chattering of traditional sliding mode observer(SMO),improve the estimation accuracy of rotor position and motor speed,and reduce the overshoot of traditional proportional integral control(PI)in speed loop,a sensorless vector control method for permanent magnet synchronous motor(PMSM)based on the combination of high-order sliding mode observer and new sliding mode speed controller was proposed.The high-order sliding mode observer was used to replace the traditional sliding mode observer,and the new sliding mode speed controller was used to replace the traditional PI speed controller.Finally,through the model building and simulation analysis with MATLAB/Simulink,compared with other commonly used control methods,the results show that the new double sliding mode control method has smaller overshoot and chattering,more accurate rotor position estimation and basically no chattering,which improves the overall observation accuracy and suppresses the high-frequency chattering of the system.The dynamic and steady-state response of PMSM is improved.
作者
杨浩
赵强
杨钊
王瑞
朱宝全
YANG Hao;ZHAO Qiang;YANG Zhao;WANG Rui;ZHU Bao-quan(School of Traffic and Transportation, Northeast Forestry University, Harbin 150040, China)
出处
《科学技术与工程》
北大核心
2022年第6期2252-2258,共7页
Science Technology and Engineering
基金
国家重点研发计划重点专项(2017YFC0803901)
黑龙江省留学归国人员科学基金(LC2015019)。
关键词
永磁同步电机
高阶滑模观测器
无传感器矢量控制
滑模控制
permanent magnet synchronous motor
high order sliding mode observer
sliding mode control
simulation analysis
