Saturation Consideration in Modeling of the Induction Machine Using Subdomain Technique to Predict Performance

Abstract

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Analysis of a spoke‐type ferrite PM motor with assisted poles based on equivalent magnetic network with hybrid cross‐shaped mesh elements

“…As shown in Figure 7, the EMN model of the concerted coils in the example motor can be equivalently built with the MEC method. Due to the concerted coils being wounded in stator teeth, the expression of the magnetomotive force (MMF) is presented as (5), where H is the magnetic field intensity, l is the circumference of a closed loop, N is the number of winding turns per coil and I is the excitation current of each coil. The direction of the MMF is determined by the current flow direction and is judged by Ampere's law.…”

“…Compared with finite element analysis (FEA), which is the most commonly used in motor analysis for its flexible modelling and high accurate analysis [4], EMN can obtain relatively high accuracy but save much calculation time by generating fewer mesh elements. Compared with another popular subdomain model method [5,6], EMN can take iron saturation into consideration, and the modelling process is rid of complicated mathematical derivation. Therefore, EMN has been successfully applied in modelling and electromagnetic performance prediction of various motors, such as surfacemounted PM machines [7], SynRM machines [8], interior PM machines [9][10][11] and flux-switching PM machines [12,13].…”

Semianalytical modeling of squirrel-cage induction machines with consideration of iron permeability and eddy-currents using elementary subdomain technique

“…In Mollaeian et al (2021), the authors used Fourier-based modeling considering finite permeability to model magnetic saturation in IM. Recent work has focused on the calculation of the magnetic field inside the machine considering the magnetic saturation effects (Roshandel et al , 2020) and (Roshandel et al , 2022). The authors proposed a coupled model based on electric equivalent circuit (EEC) and SD technique with magnetostatic formulation.…”

On the Field-Reconstruction Method for Electromagnetic Modeling of Resolvers

“…the Magnetic Equivalent Circuit (MEC) model [9], subdomain model [10], [11], Winding Functions (WF) method [12], MMF-permeance method [13], relative permeance method [14], and charge model [15]. All of those methods have their advantages and disadvantages when modeling different electrical machines.…”