This paper presents methods to calculate motor parameters considering magnetic nonlinearity in solid core transverse flux linear motors (TFLM) for dynamic simulation. The magnetic field characteristics of the machine are analyzed by using 3-D equivalent magnetic circuit network (3-D EMCN) method, and parameters for dynamic simulation such as linkage flux, thrust, attraction force, and core loss are calculated by using the magnetic field analysis results. The calculated parameters are used as a form of lookup table in the dynamic simulation model. The accuracy of the method is examined by the comparison of input currents which are calculated by using the dynamic simulation model and measured for an example TFLM.

This paper introduces a novel dual-air-gap surface permanent magnet synchronous motor (DAG-SPMSM) and investigates its electromagnetic characteristics. The motor comprises two stators (inner and outer) and a single rotor with permanent magnets on both sides (inner and outer). The magnets are arranged in a zig-zag configuration to isolate the inner and outer stator and rotor magnets. Additionally, a magnetic shield is incorporated into the rotor to further isolate the rotor magnetic flux, which results in a localized short flux path that can reduce core loss. The insertion of the magnetic shield also affects the flux path, reducing torque ripple. The electromagnetic characteristics, such as flux path, flux density, and torque, are analyzed using finite element analysis. The effectiveness of using a magnetic screen is also evaluated, and simple experiments are conducted to validate the observed characteristics of the proposed motor.

This paper is associated with the manufacture of a transverse flux linear motor (TFLM) and the characteristic of the thrust force and the maximum displacement of the mover in linear motor. The thrust force of this calculation is in good agreement with experiments. We utilized a new design for household electric applications that the volume of a linear motor reduced by 3/4. In this paper, we examine the initial displacement of piston for linear actuator and the reaction force of sustained body for a constant spring coefficient and damping coefficient under several current rates in linear motor. Thus, we calculate with FN3D and ANSYS and experiment the thrust force of the linear actuator with applied current, 0, 500, 1000, and 2000 [ampere turns, AT]. We used the experiment with several types of alternating current and the phase difference between the peak value of applied current and the maximum displacement of the mover of the linear actuator is changed with applied current frequency

Basically, there are two developments in the field of transverse flux machines, without or with permanent magnets as excitation. Since the main feature of transverse flux machine is the high thrust force density, the linear motor topology including also permanent magnets as excitation is the most promising one. Because the transverse flux machine flux pattern is complicate due to the nonlinearities introduced by the iron core saturation and permanent magnet operating point, the system analysis is not possible by using exact analytical relation. Therefore, the flux linkage and thrust force must be computed via 3D-nonlinear Finite Element Method-FEM, including the obtained results into the linear motor base model using SIMULINK. To have a more realistic approach of the overall drive system, this way is proposed in the paper for dynamic simulation. The dynamic simulation of the two kind of linear motors is presented, in order to demonstrate the advantage of the proposed transverse flux linear motor including permanent magnets over the electrically excited one, as well. The compared results of dynamic simulation are very useful for studying and analyzing different control methods that can be approached for linear motors. The simulation results show the good dynamics and high accuracy of the system model.