A dynamic model including non-idealities for a permanent magnet linear synchronous motor (PMLSM) is postulated and verified. The non-idealities acting on the physical linear motor are measured and analyzed. These experimental results are utilized in the model. The verified simulation model is used in developing a force disturbance compensator for the velocity controller of the motor. The force ...

Accurate analysis of the air gap magnetic field is focus research in precision permanent magnet linear synchronous motors. In this paper, two-dimensional a secondary trapezoidal Halbach array coreless motor (PMLSM) was taken as our object. On basis equivalent surface current method, we proposed an improved analytical algorithm with side length unit. The model induction vector established, and P...

In this paper, a new design of permanent magnet linear synchronous motor (PMLSM) for electromagnetic launcher system (EMLs) has been investigated in terms of the requisite amount of average launching thrust force and thrust force ripple minimization through finite element method. EMLs are a kind of technology used to develop thrust force and launch heavy loads with different applications includ...

This paper presents an observer-based sensorless drive system for the position control of permanent magnet linear synchronous motor (PMLSM). To achieve purpose and maintain stability global system, is designed using sum-of-squares (SOS) method. With help SOSTOOLS toolbox, algorithm can be established without need complicated mathematical derivation. First, to apply SOS technique, model treated ...

In this paper, aiming at the known or unknown uncertainties in permanent magnet linear synchronous motor (PMLSM) servo system, an intelligent backstepping terminal sliding mode control (IBTSMC) method is proposed for accurate position tracking of system. The designed controller makes use advantage theory to ensure fast convergence and robustness. Finally, stability analysis carried out by using...

Purpose – The purpose of this paper is to present an analysis of the force ripples of an open slot permanent magnet linear synchronous motor (PMLSM). A calculation procedure using 2D finite elements method is then evaluated with experimentations. Design/methodology/approach – First, the studied PMSLM and its main features are introduced. Then, we present the 2D-FEM model used to study the motor...