Rotor design of a high-speed Permanent Magnet Synchronous Machine rating 100,000 rpm at 10kW

Riemer, Björn; Leßmann, Marc; Hameyer, Kay

doi:10.1109/ecce.2010.5617800

Cited by 28 publications

(13 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rotor losses of the traditional PMSMs have been studied by experts and researchers and the calculation results has been verified in [20][21][22]. In [23][24][25], the influences on different rotor sleeves on the rotor eddy current losses were considered.…”

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

View full text Add to dashboard Cite

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.

show abstract

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

View full text Add to dashboard Cite

show abstract

“…Paper [10] introduces a technique to measure iron loss in electrical machine laminations under rotating field by using an electromagnetic Halbach array. A number of further publications can be found, where various methods are applied for measuring iron losses [2,3,6,7,11,12,13,14]. An interesting device is introduced in [15], where the effect of the mechanical stress of a stator assembly on the iron loss is examined.…”

Section: Introductionmentioning

confidence: 99%

“…In many cases the total iron loss is estimated by the Steinmetz formula assuming sinusoidal flux distribution [5,6,7]. The parameters required for the calculations are generally given by the manufacturers producing the stator laminations.…”

Section: Introductionmentioning

confidence: 99%

Development of a dedicated laboratory system for measurement of iron losses in high speed PMSM

Jardan

Varga²,

Stumpf

et al. 2015

2015 IEEE International Conference on Industrial Technology (ICIT)

View full text Add to dashboard Cite

Iron loss measurement has always been a concern for the engineers designing electrical machines. A novel test method developed for fast and accurate measurement of iron losses of permanent magnet synchronous machines and a dedicated laboratory system for performing automatic measurements are presented. The principle of the measurement technique, the main building blocks of the laboratory system and the procedures of tests are described. Test results are presented to illustrate the accuracy and repeatability of the measurements that confirm the realization of expectations and the viability of the iron loss measurement system.

show abstract

“…One key problem of the rotor eddy current loss attenuation, which relates to the rotor temperature rise, is unique to these types of machine because of the poor heat dissipation environment of the rotor and large current harmonics under voltage-source inverter (VSI) supply. Researchers found that a conductive sleeve over the rotor can reduce the eddy current losses (ECLs) significantly, and a great deal of research has been conducted into the performance of different configurations and structure parameters [1][2][3][4]. Meanwhile, continuous efforts have been devoted to the harmonic suppression algorithm of the currents produced by VSI [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A Novel Rotor Eddy Current Loss Estimation Method for Permanent Magnet Synchronous Machines with Small Inductance and a Conductive Rotor Sleeve

Pei

Guo

et al. 2019

Energies

View full text Add to dashboard Cite

Typically, permanent magnet synchronous machines (PMSMs) with small inductance can achieve a higher power density and higher power factor. Thus, in many industrial applications, more and more PMSMs are being designed with small inductance. Compared with traditional PMSMs, current harmonics in small inductance PMSMs are much more abundant, and the amplitudes are usually high. These current harmonics will cause large eddy current losses (ECLs) on the rotor, making the estimation of ECLs necessary in the design stage. Currently, ECL estimation methods are usually based on frequency order information, which cannot tell the travelling direction of the harmonic magneto-wave, resulting in the inaccuracy of the estimation. This article proposes a novel estimation method based on the mechanism of the formation of space-vector pulse width modulation (PWM), which considers both the frequency order and travelling direction of the harmonic wave, resulting in the improvement of the accuracy. Besides this, by using double Fourier analysis (DFA) instead of traditional fast Fourier analysis (FFA), the predicted frequencies of the current harmonics are more accurate and free of the troubles caused by traditional FFA-based methods. Simulation study and experiments are conducted to show the effectiveness of the proposed method.

show abstract

Rotor design of a high-speed Permanent Magnet Synchronous Machine rating 100,000 rpm at 10kW

Cited by 28 publications

References 1 publication

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

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

Development of a dedicated laboratory system for measurement of iron losses in high speed PMSM

A Novel Rotor Eddy Current Loss Estimation Method for Permanent Magnet Synchronous Machines with Small Inductance and a Conductive Rotor Sleeve

Contact Info

Product

Resources

About