Journal ArticleDOI
A Novel Mesh-Based Equivalent Magnetic Network for Performance Analysis and Optimal Design of Permanent Magnet Machines
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TLDR
A modular modeling method is presented, and then the optimal design of PM machines can be investigated without repetitive programming and modeling, and the accuracy and effectiveness of the proposed EMN model are verified through comparisons with finite element analysis and experimental tests.Abstract:
This paper proposes a novel mesh-based equivalent magnetic network (EMN) model for performance analysis and optimal design of permanent magnet (PM) machines. The key contribution of the EMN model is that a generalized air-gap model solution is proposed by considering the machine motion of PM machines. Meanwhile, a modular modeling method is presented, and then the optimal design of PM machines can be investigated without repetitive programming and modeling. Two kinds of mesh elements are comprehensively utilized in the EMN model, and a hybrid rotor PM (HRPM) machine with interior PM and surface PM configuration is selected as an example to illustrate the development processes of EMN model. Meanwhile, the electromagnetic characteristics of HRPM machine are calculated by the proposed EMN model, such as back electromotive force, air-gap flux density distribution, and average torque. Finally, the accuracy and effectiveness of the proposed EMN model are verified through comparisons with finite element analysis and experimental tests.read more
Citations
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Journal ArticleDOI
A Parameterized Linear Magnetic Equivalent Circuit for Analysis and Design of Radial Flux Magnetic Gears—Part I: Implementation
TL;DR: In this paper, a parametric linear magnetic equivalent circuit (MEC) was proposed for radial flux magnetic gears with surface permanent magnets. But the linearity approximation does not prevent the MEC from accurately matching the torque and air-gap flux densities predicted by a nonlinear finite element analysis (FEA) model for three diverse magnetic gear base designs.
Journal ArticleDOI
Parametric Equivalent Magnetic Network Modeling Approach for Multiobjective Optimization of PM Machine
TL;DR: This article proposes a novel parametric equivalent magnetic network (EMN) modeling approach for multiobjective optimization of a surface-mounted permanent magnet (SPM) machine by applying variable meshes under adjustable topology to establish parametric EMN model.
Journal ArticleDOI
Convergence of Core Losses in a Permanent Magnet Machine, as Function of Mesh Density Distribution, a Case-Study Using Finite-Element Analysis
TL;DR: This paper investigates the procedure of achieving core loss convergence, in all parts of a permanent magnet synchronous machine, by varying mesh density, using Ansys Maxwell, and the flexibility offered by this convergence method is shown.
Journal ArticleDOI
Analytical methodologies for design of segmented permanent magnet consequent pole flux switching machine: a comparative analysis
TL;DR: Analysis reveals that sub-domain model not only get rid of multiples techniques for validation purpose but also provide better results by accounting influence of all machine parts which helps to reduce computational complexity, computational time and drive storage with overall accuracy of ∼99%.
Journal ArticleDOI
An Efficient Modeling of Air Gap and Nonlinear Analysis of Magnetic Equivalent Circuit for Large Turbogenerators Under No-Load Condition
TL;DR: In this article , a 2-D nonlinear magnetic equivalent circuit (MEC) model considering saturation and rotor motion is proposed, and the flux density of air gap and stator tooth obtained by the proposed method is in good agreement with results of the finite element.
References
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Journal ArticleDOI
A Generalized Magnetic Circuit Modeling Approach for Design of Surface Permanent-Magnet Machines
Min-Fu Hsieh,You-Chiuan Hsu +1 more
TL;DR: The flux produced by stator winding currents and PMs can be calculated accurately and rapidly using the developed model, taking saturation into account, and aids machine dimensioning without the need for computationally expensive finite-element analysis.
Journal ArticleDOI
Induction Machine Modeling Approach Based on 3-D Magnetic Equivalent Circuit Framework
Marco Amrhein,Philip T. Krein +1 more
TL;DR: In this paper, an induction machine MEC model geared toward design and based on a 3D MEC framework was presented, which is able to track dynamic effects, such as rotor slot torque ripple contributions.
Journal ArticleDOI
A Simple Method for Performance Prediction of Permanent Magnet Eddy Current Couplings Using a New Magnetic Equivalent Circuit Model
Jian Wang,Jianguo Zhu +1 more
TL;DR: A simple and practical magnetic equivalent circuit (MEC) based analytical technique for calculating the performance parameters of the permanent magnet (PM) eddy current coupling is presented and shows that in a considerably wide range of slip speeds, the torques predicted by the presented method match well with those obtained by both the three-dimensional finite element analysis and experimental measurement.
Journal ArticleDOI
Design-Oriented Modelling of Axial-Flux Variable-Reluctance Resolver Based on Magnetic Equivalent Circuits and Schwarz–Christoffel Mapping
TL;DR: The aim of this paper is to establish an accurate, yet computationally fast, model suitable for optimal design of AFVR resolvers based on magnetic equivalent circuit (MEC) and conformal mapping, which are in turn based on Schwarz–Christoffel mapping.
Journal ArticleDOI
Torque Ripple Reduction in Five-Phase IPM Motors by Lowering Interactional MMF
TL;DR: It is verified that the proposed motor can offer lower torque ripple even under deep flux-weakening region and the lower-order harmonics of radial force is acceptable when the shifting angle of the repeating unit is 4.5 mechanical degrees.