In the AC permanent magnet synchronous linear motor vector control system, the accuracy of the mover’s position has a great influence on the performance of the closed-loop control. This paper studies how to obtain a continuous high-resolution position signal by means of using discrete low-resolution Hall signal simulation, and how to use the signal for the closed-loop control of the speed of a permanent magnet synchronous line-ar motor. Meanwhile, the BLDC square wave start is em-ployed to meet the demand of estimating the position of the mover

Hall position sensor， The estimation method of the position and velocity of the agent， The BLDC square wave starts