摘要
将改进型积分器作为永磁同步电动机(PMSM)的磁链观测环节,通过定子磁链观测实现对PMSM磁极位置的估计,结合矢量控制构成无位置传感器矢量控制系统。该改进型积分器消除了纯积分器带来的初值不准确、直流偏移等问题,又可以获得比低通滤波器更优的性能。仿真结果表明,PMSM无位置传感器矢量控制系统动静态性能好,抗干扰能力强。
A novel approach to position sensorless vector control system of permanent magnet synchronous motor （PMSM） based on flux observer was presented in this paper. A modified integrator was used to observe the stator flux of PMSM, and then the position of magnetic poles can be estimated by output of observer. The modified integrator eliminated the initial value and DC drift problems associated with the pure integrator,and achieved a better performance than lowpass filter. Simulation results showed that a good dynamic and static performance was achieved and the anti - interference ability of system was strengthened by this approach.
出处
《微特电机》
北大核心
2008年第8期40-42,共3页
Small & Special Electrical Machines
关键词
永磁同步电动机
无位置传感器
磁链观测器
矢量控制
仿真
permanent magnet synchronous motor
position sensorless
flux observer
vector control
simulation
