Optimal design of efficient IPM motor using finite element method

Abstract

Abstract-Techniques for the optimal design of permanent magnet motors considering rotation are investigated. The nonconforming mesh technique is used to take into account the rotation of rotor. It is shown that the technique is especially useful for the optimal design using the finite element method, because no modification of mesh is necessary during the rotation. The mesh at each angle of rotation can be obtained by only combining meshes of a rotor and a stator. By using the combined optimization technique of the experimental design method and the Rosenbrock's method, the number of FEM calculations can be fairly reduced. By applying the optimal design method, about 40% of volume of permanent magnet of IPM motor and about 15% of the torque ripple can be reduced.

Design and performance analysis of a 700‐kW wound‐rotor BDFIG for ship shaft generator application

“…In the FE method, the required accuracy and the corresponding number of nodes, connected lines, and analysis meshes are determined first, and then calculation is executed for each mesh to yield performance values such as flux densities, magnetizing currents, torques, etc. . To assess the machine performance comprehensively, both motoring condition and generating condition are involved in the simulations.…”

Application of Taguchi Experiment Design for Decrease of Cogging Torque in Permanent Magnet motors

“…permanent magnet pole configuration in SPM motors is the main cause Many methods have been proposed to reduction of Some of these techniques are to modify the permanent magnet poles some of the other methods are to modify the shape of stator teeth Surface permanent magnet motor with four poles, due to reduced consumption of copper and easy manufacturing process, now widely used in air conditioning compressors [5]. Some optimization techniques, such as genetic algorithm [15], [16], rosenbrocks method [18], [19] and [17] is used for improvement of cogging torque in SPM motors. But, the Taguchi method has been proven useful in applied science especially in engineering process to improve best quality.…”

“…Calculation of The torque (cogging stator and PM shapes has been computed using finite element Recently, because of high reliability, high efficiency and improvement of the torque density, restrictions in usage development in this The interaction of the stator teeth with magnets produced cogging torque that causes the increasing the noise, vibration and ultimately reduces efficiency of SPM motor. permanent magnet pole configuration in SPM motors is the main cause tion of a cogging Some of these techniques are to modify the permanent magnet poles some of the other methods are to modify the shape of stator teeth [12], Surface permanent magnet motor with four poles, due to reduced consumption of copper and easy Some optimization techniques, such as genetic algorithm [15], [16], rosenbrocks method [18], [19] and [17]…”

“…Surface permanent magnet motor with four poles, due to reduced consumption of copper and easy manufacturing process, now widely used in air conditioning compresso techniques, such as genetic algorithm [15], [16], rosenbrocks method [18], [19] and [17] is used for improvement of cogging torque in SPM motors. But, the Taguchi method has been proven useful in applied science especially in engi The Taguchi method does not require using additional programming element method analysis (FEM).…”

Cogging Torque Reduction in Surface Permanent Magnet Motors Using Taguchi Experiment Design and Finite Element Method

“…It also allows many settings of as many as necessary design parameters in optimization computation simultaneously. Hence, effects of several factors on cogging torque can be investigated [17].…”