A Generalized Equivalent Magnetic Network Modeling Method for Vehicular Dual-Permanent-Magnet Vernier Machines

Cao, Donghui; Zhao, Wenxiang; Ji, Jinghua; Ding, Ling; Zheng, Junqiang

doi:10.1109/tec.2019.2921699

Cited by 46 publications

(16 citation statements)

References 27 publications

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“…The MEC technique is usually utilized to provide preliminary designs [92][93][94][95] and to analyze the electromagnetic characteristics [91], [96], [97] of SRMs. This technique is divided into two approaches: conventional MEC approach [98][99][100] and reluctance-mesh/finite-reluctance approach (FRA) [101][102][103][104].…”

Section: Mec Modeling Techniques Of Srmsmentioning

confidence: 99%

“…23. Then, the partial derivatives of magnetic scalar potential in (5) are approximated using finite differences and the potential values on the grid points [23], [101], [102], [105]. In the reluctance mesh approach, the reluctances are defined between adjacent grid points as illustrated in Fig.…”

Section: B Reluctance Mesh/finite Reluctance Approachmentioning

confidence: 99%

“…The key advantage of the reluctance mesh approach over the conventional MEC technique is that it does not require an advanced knowledge of the flux path inside the machine [97]. This technique has been widely used to model and analyze PM machines [101], [102]. This is not the case for SRMs.…”

Section: A Reluctance Mesh Approachmentioning

confidence: 99%

See 2 more Smart Citations

Electromagnetic Modeling Techniques for Switched Reluctance Machines: State-of-the-Art Review

Watthewaduge

Sayed

Emadi

et al. 2020

IEEE Open J. Ind. Electron. Soc.

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Switched Reluctance Machines (SRMs) are gaining more attention due to their simple and rugged construction, low manufacturing cost, and high-speed operation capability. An electromagnetic model of the machine is needed in the design and analysis processes. The required accuracy level of the model depends mainly on the application. A high-fidelity model is required to achieve a good design and predict the performance accurately. However, it requires high computational cost and longer simulation time. Other fast and less-comprehensive models with less computational burden could be utilized in the design and analysis of the motor drives. This paper extensively analyzes various electromagnetic modeling techniques of SRMs. Analytical, numerical, and hybrid models are considered. The paper investigates analytical models that are based on Maxwell's equations in addition to interpolation and curve fitting techniques. Numerical techniques such as Finite Element Method (FEM) and Boundary Element Method (BEM) are presented. Moreover, Magnetic Equivalent Circuit (MEC) method is discussed. Finally, potential research areas are proposed for the electromagnetic modeling of SRMs. INDEX TERMS Analytical model, boundary element method (BEM), electromagnetic modeling, finite element method (FEM), magnetic equivalent circuit (MEC) model, numerical model, switched reluctance machine (SRM).

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Section: Mec Modeling Techniques Of Srmsmentioning

confidence: 99%

Section: B Reluctance Mesh/finite Reluctance Approachmentioning

confidence: 99%

See 1 more Smart Citation

Electromagnetic Modeling Techniques for Switched Reluctance Machines: State-of-the-Art Review

Watthewaduge

Sayed

Emadi

et al. 2020

IEEE Open J. Ind. Electron. Soc.

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show abstract

“…They used the successive over relaxation method, which is an advanced Gauss iteration method, to solve the magnetic network equations. [21]. In the practical calculation, the selection of relaxation factors depends on experience, and improper relaxation factors can also lead to divergent results.…”

Section: Introductionmentioning

confidence: 99%

Probing Homotopy Continuation Method for Solving Nonlinear Magnetic Network Equations

et al. 2021

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Nonlinear magnetic network is an effective model to solve the magnetic field of the motor. For the strong nonlinearity of magnetic network parameters, it is difficult to solve the nonlinear magnetic network equations. To overcome the divergent issue for solving the nonlinear magnetic network equations, a new method, the homotopy continuation method, is proposed. Based on the benchmark model of Testing Electromagnetic Analysis Methods Problem 20 (TEAM P20), the two-dimensional nonlinear magnetic network model is established. Next, homotopy equations of nonlinear magnetic network equations are derived, and they are solved by the homotopy continuation method. So that solving the nonlinear magnetic network equations is transformed into solving a set of homotopy equations. Then, the magnetic flux density of iron core with different saturation levels is calculated using the simple iteration method, the relaxation iteration method, Newton-Raphson method, and the homotopy continuation method, respectively. The results and convergence performance of the four methods are compared. It is proved that the proposed method can effectively expand the convergence domain and simplify the calculation process. The magnetic flux density calculated by the homotopy continuation method is compared with the finite element method in the supersaturated state, and the results are in good agreement. The relative error of the magnetic flux density of the core is less than 5%, which verifies the correctness of the proposed algorithm.INDEX TERMS Nonlinear magnetic network, homotopy continuation method, TEAM P20, nonlinear magnetic field calculation.

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“…A modular linear PMVM was presented and optimized for highprecision and safety-critical direct-drive applications, and it has high desired fault-tolerant capability in [2]. An equivalent magnetic network model for vehicular PMVM was built for obtaining the optimization values in [3]. A spoke-type PMVM was designed and optimized for improving torque density and power factor in [4].…”

Section: Introductionmentioning

confidence: 99%

Optimization Design of Parallel Double Stator and Outer Mover Linear Rotary Permanent Magnet Machine Used for Drilling Robot

Guo

2020

2020 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

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In order to meet the requirement of the drilling robot, a parallel double stator and outer mover linear rotary permanent magnet machine is proposed, which combines an outer rotor vernier machine (ORVM) and a cylindrical outer rotor linear vernier machine (CORLVM) by using a special support mechanism. The electromagnetic and mechanical structure optimization design is analyzed by 3-D finite element method (FEM) in the paper, including the design of ORVM and CORLVM, the stress calculation of support mechanism and the loss calculation. Then the optimized values of structure parameters are obtained. Compared with the results of the initial topology analyzed by 3-D FEM, the torque and thrust are improved and the amplitudes of the cogging torque and detent force are reduced. The combined structure design has the advantages of two different motors, which can provide a reference for the research of this type of motor.

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A Generalized Equivalent Magnetic Network Modeling Method for Vehicular Dual-Permanent-Magnet Vernier Machines

Cited by 46 publications

References 27 publications

Electromagnetic Modeling Techniques for Switched Reluctance Machines: State-of-the-Art Review

Electromagnetic Modeling Techniques for Switched Reluctance Machines: State-of-the-Art Review

Probing Homotopy Continuation Method for Solving Nonlinear Magnetic Network Equations

Optimization Design of Parallel Double Stator and Outer Mover Linear Rotary Permanent Magnet Machine Used for Drilling Robot

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