摘要
当前永磁直线同步电机(PMLSM)推力扰动抑制算法的高复杂度导致了伺服系统调节响应速度的滞后性,在高响应速度要求的情况下成为了不可忽视的问题。为解决上述问题,在对PMLSM进行了动态带载电磁场有限元分析的基础上,采用分数槽设计削弱了齿槽效应并提出了基于灰色预测理论(GM)的PMLSM推力预测前馈控制策略,提高了推力补偿调节响应速度。仿真结果证明:所提出的控制策略有效地提高了PMLSM伺服动态调节响应速度和运行精度。
The mainstream optimization algorithms used to inhibit the thrust disturbance of Permanent Magnet Linear Synchronous Motor（PMLSM） lead to a non-ignorable response speed hysteresis on regulating the thrust compensation because of the high complexity of these optimization algorithms,especially under the circumstance of requiring fast response.In order to solve the problem above,this thesis has designed fractional-slot based on the PMLSM＇s primary core which was made a finite element analysis of electromagnetic field distribution in the dynamic and loading operation of PMLSM by ANSYS.And this measure has reduced the negative influence of slot effect.Based on the design above,a new approach which is a feedforward control system based on the gray prediction theory of thrust and can inhibit its thrust ripples effectively has been brought up in order to increase the response speed of the regulation of thrust compensation.The last simulation proved that this measure is effective and significant.
出处
《计算机仿真》
CSCD
北大核心
2011年第2期378-382,共5页
Computer Simulation
基金
辽宁自然科学基金项目"高精度永磁直线给进伺服系统扰动抑制研究(20082042)
