Hysteresis Torque Estimation Method Based on Iron-Loss Analysis for Permanent Magnet Synchronous Motor

Hwang, Sung-Woo; Lim, Myung-Seop; Hong, Jung-Pyo

doi:10.1109/tmag.2016.2528998

Cited by 26 publications

(10 citation statements)

References 11 publications

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“…There are various prototypes of PMSM, such as the surface-mounted PMSM [3], interior PMSM [4], claw-pole PMSM [5], transverse flux PMSM [6], and axial flux PMSM [7], as shown in Figure 1. The structures of the prototypes show significant differences, but their operating principle, in terms of electromagnetic energy conversion, is consistent.…”

Section: Prototypes and The Conventional Ecms Of Pmsmsmentioning

confidence: 99%

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Development of Equivalent Circuit Models of Permanent Magnet Synchronous Motors Considering Core Loss

Gong

Guo

et al. 2022

Energies

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Permanent magnet synchronous motor (PMSM) possesses the advantages of low power loss, high power density and high torque density and, hence, has achieved broad applications in both industrial drives and home appliances. With the increasing demands for high power density, the PMSM often operates at high speed and high frequency, leading to high power loss and temperature rise. Consequently, proper consideration of power loss, including the core loss, has attracted much attention for the modelling, designing, controlling and optimizing of PMSMs. However, the widely used equivalent circuit model, capable of providing good analysis results with fast calculation, often ignores the core loss, which may lead to unsatisfactory motor performance. This paper aims to investigate the development of equivalent circuit models, with predictable core loss for PMSMs, and proposes novel equivalent circuit models, which improve the core loss prediction accuracy in the load conditions. Some thoughts about the further improvement of the models are proposed and discussed.

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Section: Prototypes and The Conventional Ecms Of Pmsmsmentioning

confidence: 99%

“…Energies 2022, 15, 1995 12 of 18 2 0 3 3 According to the proposed per-phase ECM, the following mathematical equations are obtained:…”

Section: Proposed Ecms With Predictable Core Lossmentioning

confidence: 99%

Development of Equivalent Circuit Models of Permanent Magnet Synchronous Motors Considering Core Loss

Gong

Guo

et al. 2022

Energies

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“…Moreover, the eddy current losses are separated into classical losses, that are the eddy currents induced in materials by an external alternating magnetic field, and excess losses that are result of the internal movement of domain walls between different magnetic domains [22][23][24][25]. Taking into account the above consideration, the total iron losses are the sum of hysteresis, classical eddy current and excess losses [22,26,27]: P fe = P h + P e + P a = fe k h fB α + fe k e f 2 B 2 + fe k a f 1.5 B 1.5 ,…”

Section: Iron Lossesmentioning

confidence: 99%

Finite Element Method Investigation and Loss Estimation of a Permanent Magnet Synchronous Generator Feeding a Non-Linear Load

Barmpatza

Kappatou

2018

Energies

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The purpose of this paper is the performance investigation of a Permanent Magnet Synchronous Generator (PMSG) system, suitable for wind power applications and the comparison of the machine electromagnetic characteristics under open and closed control loop implementations. The copper and iron losses are estimated and compared for the above control systems with the use of the Steinmetz-Bertotti loss separation equation. In addition, the effect of the rotating magnetic field on the total losses is studied. The generator is simulated using Finite Element Analysis (FEA), while the rest of the components are connected to the machine model using a drawing window of the FEA software and suitable command files. The close loop control used in the present study results to less losses and greater machine efficiency. The main novelty of the paper is the simulation of the PMSG coupled with a converter and control schemes using FEA, which ensures more accurate results of the whole system and allows the detailed machine electromagnetic study, while the majority of existing papers on this topic uses simulation tools that usually simulate in detail the electric circuits but not the machine. The FEM model is validated by experimental results.

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“…This holds especially true for SFHP machines, due to a lack of proper measurement equipment and techniques. In the literature (e.g., [23]- [26]), the hysteresis torque is typically neglected or estimated together with the friction torque, with no clear separation of the two with respect to both the waveform and average value.…”

Section: Introductionmentioning

confidence: 99%

Effect of Manufacturing Influences on Magnetic Performance Parameters of Sub-Fractional Horsepower Motors

2021

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Depending on the stator lamination manufacturing processes (e.g., punching, laser cutting, clamping, welding, interlocking, bonding), the motor's magnetic performance parameters such as cogging torque, hysteresis torque, and iron losses can vary significantly. In sub-fractional horsepower permanent magnet motors, the manufacturing influence is typically even more severe because, due to their small dimensions, practically the whole stator material is likely to be affected. This paper analyzes the magnetic performance parameters cogging torque, hysteresis torque, and iron losses of three different stator lamination stacks (i.e., M250-35A punched with interlocking, M250-35A laser cut with bonding, NO10 laser cut with bonding) of a sub-fractional horsepower singlephase brushless permanent magnet motor often found in automotive fan applications. A rheometer is used for extremely accurate torque measurements in the sub-milli-Newton meter range, and electron backscatter diffraction measurements are performed to visualize changes in the grain morphology and crystal orientation. The findings reveal that the punched stator with interlocking is affected the most by the manufacturing process, showing the lowest cogging torque yet the highest average hysteresis torque and thus up to 40 % higher iron losses. The results presented in this paper allow for both making basic stator lamination design choices and translating the iron losses, as well as the hysteresis torque and cogging torque waveforms, of a laser cut and bonded prototype into those of its punched and interlocked mass-produced counterpart.

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Hysteresis Torque Estimation Method Based on Iron-Loss Analysis for Permanent Magnet Synchronous Motor

Cited by 26 publications

References 11 publications

Development of Equivalent Circuit Models of Permanent Magnet Synchronous Motors Considering Core Loss

Development of Equivalent Circuit Models of Permanent Magnet Synchronous Motors Considering Core Loss

Finite Element Method Investigation and Loss Estimation of a Permanent Magnet Synchronous Generator Feeding a Non-Linear Load

Effect of Manufacturing Influences on Magnetic Performance Parameters of Sub-Fractional Horsepower Motors

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