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This paper proposes an iterative method to calculate the equivalent relative permeability (μr) of the motor model with closed rotor slots at frequency domain. A brief explanation of the problem is given and the procedure for this approach is presented. Comparison between simulations, with and without new μr are performed and compared to experimental data in order to demonstrate the effectiveness of...
This paper presents a proper model and methodology to improve the efficiency class of a squirrel-cage induction motor during rewinding. The modeling approach is based on the finite element model, i.e. two-dimensional model coupled with the rotor equivalent circuit (first stage) and the stator equivalent circuit (second stage). Results obtained with finite element analysis are compared with those obtained...
This paper presents a new topology of an actuator which allows the precise control of the angular position. The proposed system is known as 3-DOF (Three Degrees of Freedom) Spherical Actuator. This actuator can be applied to a robotic eye or joints, as it has 3-DOF in a single block. Such spherical actuator is different among others publications, since it has only three coils, which simplify its construction...
Linear drives have been a feasible solution for industrial material handling and processing applications, due to its high dynamic response, high precision and robustness. This paper presents a short primary linear induction motor (LIM) on passive track, where the primary (moving windings) travels between the processing stations. Usually a linear scale is installed along the guidance profile; therefore...
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