High-Precision Motion Control for a Linear Permanent Magnet Iron Core Synchronous Motor Drive in Position Platform

The high precision motion tracking controller consisting of a linear permanent magnet iron core synchronous motor (LPMICSM) operating on a positioning platform is proposed. First, we address important issues related to the construction and driving theorem of the LPMICSM. Next the general system dynamic model is derived and analyzed. Then, because of the uncertainties and unknown parameters of the underlying system, a discrete adaptive sliding-mode (DASM) controller is proposed to guarantee system stability for both regulation and tracking tasks. Finally, according to the reported experimental results, the satisfactory performances including step regulation and tracking sinusoid, has been achieved. Therefore, the proposed control method is feasible and effective in high-precision motion control of LPMICSM.