Extended field reconstruction method for modeling of interior permanent magnet synchronous machines

Gu, Lei
Moallem, M.
Bostancı, Emine
Wang, Shiliang
Devendra, Patil
This paper presents an extended field reconstruction method (EFRM) that is developed to model an interior permanent magnet synchronous machine (IPMSM), which is known for its high power density and power factor. Traditional field reconstruction method is a very convenient tool for the modeling and analysis of the performance of the surface mounted permanent magnet machine (SPMSM). Regarding IPMSM, which usually works under saturation, traditional FRM method cannot be directly applied. An improved FRM, which considers both saturation and slottings effects, is proposed in this study. Comparisons with finite element analysis (FEA) show that EFRM has an acceptable accuracy and takes less computation time.


A numerical method for predicting depth of heat affected zone in EDM process for AISI H13 tool steel
Shabgard, M. R.; Seyedzavvar, M.; Oliaei, S. Nadimi Bavil; Ivanov, A. (2011-07-01)
This study presents a finite element model (FEM) to model temperature distribution for AISI H13 tool steel workpiece in electrical discharge machining (EDM) at different machining parameters (pulse current, pulse on-time, temperature-sensitive material properties, size of heat source, and material flushing efficiency). Scanning electron microscopy (SEM) with energy dispersive x-ray (EDX) and micro-hardness tests were used to validate accuracy of FEM predictions. Increasing pulse on-time leads to a higher de...
An analytical Network for Switched Reluctance Machines with Highly Saturated Regions
Yu, Q.; Laudensack, C.; Gerling, D. (2011-09-10)
In this paper an analytical network for flux linkage and flux density distribution of a switched reluctance machine (SRM) is developed based on the magnetic equivalent circuit (MEC). Due to the positional dependent reluctance in the air gap, all paths are separately modeled. Instead of using empirical equations, the effective air gap reluctance is analyzed from machine geometry. Due to high local saturation in the teeth, the machine is discretized into adjustable elements. In addition, the slot leakage and ...
A Novel Numerical Technique for Analyzing Metasurfaces
ÖZGÜN, ÖZLEM; Mittra, Raj; Kuzuoğlu, Mustafa (2019-12-31)
This work presents a novel technique for efficient numerical modeling of electromagnetic scattering from metasurfaces comprising of truncated periodic or locally-varying quasi-periodic surfaces. The proposed technique hybridizes the periodic Finite Element Method (FEM) with the Method of Moments (MoM) to develop an algorithm far more efficient than conventional numerical methods for electromagnetic scattering from arbitrary objects. The key feature of the proposed algorithm is that it takes advantage of the...
A New Method for Leakage Inductance Calculation of Transverse Flux Machines
Zafarani, Mohsen; Moallem, Mehdi; Ghadamyari, Mohammad Adib (2011-09-10)
This paper presents a new analytical method for leakage inductance calculation of transverse flux permanent magnet machines. In this method, leakage flux paths are predicted base on the finite element results, and then all paths would be modeled by flux tubes. Finally, the inductance of the machine would be obtained by calculation of the permeance of flux tubes. The validity of the proposed model is verified by comparing the Finite Element results with the results obtained from the proposed approach. Compar...
Design Studies of Axial Vircator for High Power Microwave Generation
KÜÇÜK, İBRAHİM SEMİH; TİMUR, BÜŞRA; Tanc, Zafer; Demir, Şimşek (2017-09-27)
This paper presents design and simulation results of the cylindrical axial virtual cathode oscillator which is frequently used to damage electronic equipment by generating High Power Microwaves (HPM). Simulations are performed in MAGIC Tool Suite which uses FDTD-PIC algorithm to solve particle beam and field interactions. During the design procedure, AK Gap is changed from 5 mm to 12 mm and the scaling law is verified by simulation results. 9 mm AK gap values are selected as the most suitable one when outpu...
Citation Formats
L. Gu, M. Moallem, E. Bostancı, S. Wang, and P. Devendra, “Extended field reconstruction method for modeling of interior permanent magnet synchronous machines,” 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37150.