A nonlinear speed controller for permanent magnet synchronous motor based on adaptive backstepping control was designed , which uses second - order filter to smooth the speed reference 摘要設(shè)計了一種基于自適應(yīng)同步控制的永滋同步電動機非線性速度控制器,采用二階濾波環(huán)節(jié)平滑速度指令。