Effect of parameters on back-EMF in permanent magnet brushless DC motor with concentrated winding
A method for analyzing the concentrated windings back-EMF in permanent magnet brushless DC motor, based on the analytical calculation of one phase back-EMF by using Fourier series, has been developed and validated by comparing computing waves to measured waveforms. And the paper discussed the influence on back-EMF of design parameters.
Analytical modeling of permanent magentic synchronous motors considering spatial harmonics
This work presents a new analytical modeling method of electrical machines with a focus on Permanent Magnet Synchronous Motors. The goal of this work is to establish a platform for simulation and optimization of synchronous motors considering the spatial distribution of flux density in all its parts. The dynamic motor behavior is emulated with a quasi-static model. Based on this model, all other motor parameters are calculated and presented as mathematical functions of time and rotor position. The spatial harmonic model of the motor facilitates a deeper understanding of motor behavior. The adaptive algorithm introduced here can be modified based on the results obtained from finite element analyses. The compliance of the analytical model to finite element calculations is the main goal of this work.
The FEM analysis of Nd‐Fe‐B single‐phase synchronous motor
This paper briefly introduces the main characteristics of the Nd‐Fe‐B single phase synchronous motor, discusses the equivalence method of the Nd‐Fe‐B and the mathematical model of the FEM analysis, then reports the calculation results of no‐load and the armature reaction.