Analytical Model for No-Load Electromagnetic Performance Prediction of V-Shape IPM Motors Considering Nonlinearity of Magnetic Bridges

Li, Shiqi; Tong, Wenming; Hou, Mingjun; Wu, Shengnan; Tang, Renyuan

doi:10.1109/tec.2021.3121438

Cited by 15 publications

(2 citation statements)

References 27 publications

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“…Permanent Magnet (PM) machines have increased their utilisation in a variety of applications including medical, robotics, transportation, and energy systems, as a result of advancements in technologies such as fast computing and commercial Finite Element Analysis (FEA) software, and the availability of highenergy PMs [1,2]. In recent years, IPMSMs have gained significant consideration due to their comparatively high power density, high efficiency, and robust operation [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the impact of rotor shaping on the torque and radial force harmonics of a V‐shape interior permanent magnet synchronous machine

Masoumi,

Tsao,

Abeyrathne

et al. 2023

IET Electric Power Appl

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This paper introduces a technique aimed at improving the performance of an interior permanent magnet synchronous machine (IPMSM) by reducing torque ripple and radial force harmonics. Unlike conventional IPMSMs, the proposed method employs a variable airgap length that is defined by a mathematical function. Two distinct rotor shapes are investigated to determine the most efficient design. Finite Element Analysis is employed to assess both the electromagnetic and mechanical attributes of the proposed motors. It compares the results for three operating points of the shaped motor with those of a conventional one. The investigation delves into the influence of rotor geometry on key output parameters, including Back Electromotive Force (back‐EMF) harmonics, average torque, cogging torque, torque ripple, efficiency, power factor, and radial force harmonics. The findings indicate that optimising rotor shape can significantly enhance IPMSM performance by reducing torque ripples and radial force harmonics, while simultaneously increasing average torque and efficiency at different operating points.

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Section: Introductionmentioning

confidence: 99%

Investigation of the impact of rotor shaping on the torque and radial force harmonics of a V‐shape interior permanent magnet synchronous machine

Masoumi,

Tsao,

Abeyrathne

et al. 2023

IET Electric Power Appl

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“…Their research showed promising results in achieving improved performance through rotor design optimization. An approach based on mathematical calculus makes the translation of the IPM's internal components into numerical equations was presented in [16], which focused on reduction in time spent. Part of the latest trend is a method that tries to resolve the many-objective optimization problems and details applied to the IPM optimization by the authors of [17].…”

Section: Introductionmentioning

confidence: 99%

The Optimization of the Interior Permanent Magnetic Motor Case Study

Mociran

Ţopa

2023

Electronics

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This paper presents two optimization methods of an interior permanent magnetic motor (IPM). The first method is based on the non-dominated sorting genetic algorithm II (NSGA-II), while the second one is based on the NSGA-III algorithm. The focus is on the reduction of the cogging torque (CT), which acts upon the rotor when the IPM is not powered, and the current that flows through the three windings is 0. The influence of the CT over the motor operation is a negative one, inducing vibrations that are not desired. The limitation of these influences is the desired way for improvement. The optimizations applied entailed the change of the geometrical configuration of the stator whilst maintaining the exterior dimensions unaltered. Through this simple but robust approach, the performance of the IPM proposed was improved.

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Fast Design of Spoke-Type PM Motor With Auxiliary Notches Based on Lumped-Parameter Magnetic Equivalent Circuit Model and Hybrid Multiobjective Optimizer

et al. 2022

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The multi-objective design of PM motor is time-consuming. The accuracy complexity of the solver model and the efficiency of the optimizer affect the cycle of electromagnetic design. A fast design method of spoke-type PM motors with auxiliary notches based on lumped-parameter magnetic equivalent circuit (MEC) model and a hybrid multi-objective optimizer (HyMOO) are proposed in this article. The MEC model is established to quickly reflect the influence of design parameters on electromagnetic and torque performance in the account of auxiliary notch structure in the rotor lamination. Meanwhile, an HyMOO is proposed considering the Grey Wolves Optimization (GWO) model, to solve more complex multimode problems involving more parameters. The accuracy and high calculation speed of the proposed MEC are verified in comparison with the FE method. A benchmark test by general distance (GD) and inverted generational distance (IGD) proves the HyMOO with better converge speed and robustness. Based on the MEC model and HyMOO, a fast electromagnetic design is applied for the motor with requirements of 140Nm rated torque and 4.5% torque ripple. The optimal solutions are validated by FE analyses, and the best design are chosen, manufactured as prototype, and tested. Both the FE and experimental analyses verify the reliability of the fast design and the proposed motor.INDEX TERMS Auxiliary notch, fast multi-objective design, multi-objective optimizer, lumped-magnetic equivalent circuit model, spoke-type permanent magnetic machine

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Analytical Model for No-Load Electromagnetic Performance Prediction of V-Shape IPM Motors Considering Nonlinearity of Magnetic Bridges

Cited by 15 publications

References 27 publications

Investigation of the impact of rotor shaping on the torque and radial force harmonics of a V‐shape interior permanent magnet synchronous machine

Investigation of the impact of rotor shaping on the torque and radial force harmonics of a V‐shape interior permanent magnet synchronous machine

The Optimization of the Interior Permanent Magnetic Motor Case Study

Fast Design of Spoke-Type PM Motor With Auxiliary Notches Based on Lumped-Parameter Magnetic Equivalent Circuit Model and Hybrid Multiobjective Optimizer

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