Influence of periodic carrier frequency modulation on stator steel core loss and rotor eddy current loss of permanent magnet synchronous motor

Xu, Yang; Yuan, Qing; Zou, Jibin; Wang, Hao

doi:10.1109/icems.2014.7013850

Cited by 6 publications

(5 citation statements)

References 13 publications

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“…The fundamental component and those time harmonics in larger proportion would be calculated as like steady alternating field. Based on those assumptions above, the general calculation model is illustrated as Fig.2 4 1 sin 1,3,5,...…”

Section: Analytical Model Of Eclmentioning

confidence: 99%

“…Substituting (18) into (10)- (12), the concrete expression of 2 A , 3 A , 4 A and other electromagnetic terms can be got.…”

Section: Analytical Model Of Eclmentioning

confidence: 99%

“…The magnet thickness depends on its equivalent electromagnetic thickness, namely the thickest depth of penetration 4 d , whose expression is (30).…”

Section: Analytical Model Of Eclmentioning

confidence: 99%

“…INTRODUCTION As for the HSPMSM, the ECL of rotor of which has higher speed occupies higher percentage of total loss especially in similar power level [1][2][3][4]. The component of ECL consists of spatial harmonic loss and time harmonic loss which occupies the mainly part when the HSPMSM reach more fast speed [5][6][7].…”

mentioning

confidence: 99%

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The ECL Optimization and Experiment of HSPMSM with Improved Method

Liu¹

2018

Preprint

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-The eddy current loss should be optimized to be as less as possible for the stability of permanent magnet in high speed permanent magnet synchronous motor (HSPMSM) rotor and ensure the high efficiency and low temperature of the motor. This paper analyzes the eddy current distribution in rotor, with consideration of the conflict of the thickness of sleeve and diameter of the rotor, calculating the eddy current loss (ECL) and the thermal distribution via Separation of variables method for solving Maxwell's equations with analytical hieratical model of ECL constructed. The optimization result of ECL of the HSPMSM whose power and rated speed is 30kw 48000r/min can be got by multi-objective optimization method, combined weighting coefficient method and traversal algorithm based on chaotic local search particle swarm optimization (CLSPSO), utilizing ECL analytical model and other analytical constraints. Related experiment and measurement has been implemented with new approach of loss separation. Index Terms-eddy current loss, multi-objective optimization (MOO), electromagnetic analysis, equivalent hierarchical method

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Section: Analytical Model Of Eclmentioning

confidence: 99%

“…Substituting (18) into (10)- (12), the concrete expression of 2 A , 3 A , 4 A and other electromagnetic terms can be got.…”

Section: Analytical Model Of Eclmentioning

confidence: 99%

“…The magnet thickness depends on its equivalent electromagnetic thickness, namely the thickest depth of penetration 4 d , whose expression is (30).…”

Section: Analytical Model Of Eclmentioning

confidence: 99%

mentioning

confidence: 99%

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The ECL Optimization and Experiment of HSPMSM with Improved Method

Liu¹

2018

Preprint

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“…The rotor eddy current losses can be calculated by the time-step finite element analysis (FEA) method [28,29]. However, the pre-processing, including geometric modeling, meshing and boundary condition setting, requires a long time and large storage memory, unsuitable for industrial applications.…”

Section: Analytic Calculation Modelmentioning

confidence: 99%

Optimal Design of the Rotor Structure of a HSPMSM Based on Analytic Calculation of Eddy Current Losses

Liang

Liu

2017

Energies

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Abstract:The rotor eddy current losses of a high-speed permanent magnet synchronous motor reduce the efficiency of the motor and increase the temperature rise of the rotor. In severe cases, the permanent magnet of the rotor can be demagnetized, affecting the safe operation of the motor. In this paper, an analytical model of rotor eddy current losses calculation based on Maxwell equations is introduced. The eddy current losses of rotor structures, e.g., protection sleeve, shield layer and permanent magnets, are analyzed. The calculation results of rotor eddy current losses are compared with two-dimensional (2D) finite element analysis. The comparison verifies the accuracy and versatility of analytical calculation. Finally, the influences of the variables on eddy current losses in the derived model are analyzed. Based on the principle of minimizing eddy current losses, an optimized structure with copper layers covering both inner and outer surfaces of the protective sleeve is proposed. Furthermore, the optimized distribution parameter of copper film thickness is obtained.

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Conductive Common-Mode EMI Suppressing Methods in Inverter Fed Motor Drives

Hu,

Chen

2024

Green Energy and Technology

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Influence of periodic carrier frequency modulation on stator steel core loss and rotor eddy current loss of permanent magnet synchronous motor

Cited by 6 publications

References 13 publications

The ECL Optimization and Experiment of HSPMSM with Improved Method

The ECL Optimization and Experiment of HSPMSM with Improved Method

Optimal Design of the Rotor Structure of a HSPMSM Based on Analytic Calculation of Eddy Current Losses

Conductive Common-Mode EMI Suppressing Methods in Inverter Fed Motor Drives

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