【摘要】 就无轴承电动机产生旋转与悬浮相互干扰的耦合磁场模型进行了逆系统解耦线性化,并对无轴承电动机的解耦线性化系统进行了伪微分反馈(pseudo-derivative feedback,PDF)控制研究.通过对PDF控制系统的性能分析和仿真可知,PDF控制系统具有响应速度快、控制精度高、可控性好、无超调和较强的鲁棒性等优点;可以避免启动回绕和微分突变现象,对被控对象的数学模型不作精确的要求,且一定的偏差不会影响系统的性能,因此,对于工程系统很适用.更多还原

【Abstract】 The coupling magnetic field model in which the electromagnet torque and radial suspension force interfere each other is linearized through inverse system decoupling,and pseudo-derivative feedback control strategy is used to research the decoupling linearization system.With performance analysis and simulation of pseudo-derivative feedback control system,it can be concluded that pseudo-derivative feedback control system has quick response,high control precision,good control ability,no warp,and excellent robustness.It doesn’t require an exact math model for the controlled object and little warp will not influence system performance.It can be applied to project system.更多还原