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Integrated controller design of a permanent magnet iron core linear synchronous motor for macro-micro positioning

ABSTRACT In this paper, a hybrid ASMC&VSC high-precision motion controller for positioning systems is proposed. Specifically, in this system, a new structure with an adaptive sliding-mode control (ASMC) algorithm is described, which aims to achieve the following three goals: (1) the adjustable feature of variable speed control (VSC) to effectively improve the transient response in positioning; (2) precise positioning (submicrometer level); (3) excellent positioning convergence performance. Finally, according to the reported experimental results, satisfactory performance, including step regulation and tracking sinusoid, has been achieved. Therefore, the method of integrating a set of effective controllers is shown to be feasible and effective in the high-precision motion control of permanent magnet iron core linear synchronous motors (PMLSM).