摘要
分析了一类非线性系统基于扰动的滑模状态观测器设计的基本思想,在此基础上将其应用到永磁同步电机无传感器矢量控制策略下永磁转子速度及位置信息的获取当中。为获取精度较高的状态估计,设计了具有变截止频率特性相位补偿的位置及具有自适应调节率的转速滑模观测器,理论分析表明这类观测器对参数变化具有极强的鲁棒性。仿真结果证明基于空间矢量脉宽调制供电技术的永磁同步电机双闭环无传感器矢量控制系统具有较好的动静态性能。
The basic principle of sliding mode observer design based on disturbance for a certain nonlinear system is analyzed which is used to get the permanent magnet rotor＇ s velocity and position information for PMSM（ permanent magnet synchronous motor）sensorless vector control. The position observer with variable cut-off frequency phase compensation and the velocity observer with adaptive scheduling are designed in order to obtain more precise state estimation. Theoretical analyses reveal that such observer is much robust to the parameter variation and the experiment simulation results prove that the PMSM double-closedloop sensorless vector control system has good dynamic and static performance.
出处
《电机与控制学报》
EI
CSCD
北大核心
2007年第5期456-461,共6页
Electric Machines and Control
基金
陕西省自然科学基金(2006E132)
关键词
滑模观测器
永磁同步电机
空间矢量脉宽调制
虚拟传感器
无传感器矢量控制
sliding mode observer
permanent magnet synchronous motor
space vector pulse width modulation
virtual sensors
sensorless vector control
