Flux-density space-harmonics minimization for an axial-flux permanent-magnet machine

Pop, Adrian Augustin; Radulescu, M.M.; Bălan, Horia

doi:10.1109/iseee.2013.6674327

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…As mentioned in the previous section, in BLDCs, space harmonics depend on the physical structure of the motor. Space harmonics are caused by the slot structure and the nonsinusoidal distribution of the phase windings [30]. In this study, THD values of the machines with different pole/slot numbers are analysed and given in Table 3.…”

Section: Simulation Resultsmentioning

confidence: 99%

A comparative analysis of four-pole brushless DC motors with different slot and winding arrangement based on THD values

Ocak

Dalcalı

2020

International Journal of Energy Applications and Technologies

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Brushless DC motors (BLDC) are widely used in variable speed drive applications. Nowadays the relationship between the number of poles, slots and winding arrangements in BLDC motors continues to be a very challenging topic. The main objective of this work was to develop and compare four-pole BLDC motors with different slot numbers (6, 12 and 15) and winding arrangements. Three-dimensional finite element analysis (FEA) was conducted to characterize the proposed designs. The Total Harmonic Distortion (THDv) which tells the amount of harmonics present in the voltage have been obtained and compared based on the different slot numbers and winding arrangement. In the study, an extensive investigation of the THDv values in four-pole BLDC motors having different slot and winding configurations has been carried out. From the simulated results it is evident that the lowest THDv and corresponding sinusoidal back emf can be obtained by implementing 15 slots within four-pole designs. The performance values have been examined comparatively by analysing the motors at the rated condition.

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Section: Simulation Resultsmentioning

confidence: 99%

A comparative analysis of four-pole brushless DC motors with different slot and winding arrangement based on THD values

Ocak

Dalcalı

2020

International Journal of Energy Applications and Technologies

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“…There are two types of harmonics related to synchronous machines: time harmonics [1][2][3][4][5][6][7][8] and space harmonics [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Time harmonics are generated by power electronics devices in power systems [5], which could cause issues such as eddy-current losses [3,5] and interference with voltage regulation [4] of synchronous machines.…”

Section: Introductionmentioning

confidence: 99%

Space Harmonics of Synchronous Machines Calculated by Finite Element Method

Liang

Faried

El-Serafi

2015

IEEE Trans. on Ind. Applicat.

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Space harmonics of synchronous machines are investigated in this paper through a specially designed synchronous machine. Two-dimensional (2D) finite element method is used to calculate the magnetic field of the machine. The space harmonic magnitude and phase angle can be computed based on the magnetic flux density. The machine is specially designed and can be excited from the direct axis, quadrature axis, and various intermediate-axes. The overall finite element calculation accuracy is validated by the measured open-circuit characteristic curves. The space harmonics investigation in this paper provides valuable insight of space harmonic contents of synchronous machines, which can help to develop more advanced harmonic prediction method for synchronous machine's design and operation.

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mentioning

confidence: 99%

Space harmonics of synchronous machines calculated by finite element method

Faried

El-Serafi

2015

2015 IEEE/IAS 51st Industrial &Amp; Commercial Power Systems Technical Conference (I&CPS)

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Space harmonics of synchronous machines are investigated in this paper through a specially designed synchronous machine. Two-dimension (2D) finite element method is used to calculate the magnetic field of the machine. The space harmonic magnitude and phase angle can be computed based on the magnetic flux density. The machine is specially designed and can be excited from the direct axis, quadrature axis, and various intermediate-axes. The overall finite element calculation accuracy is validated by the measured open-circuit characteristic curves. The space harmonics investigation in this paper provides valuable insight of space harmonic contents of synchronous machines, which can help to develop more advanced harmonic prediction method for synchronous machine's design and operation.

show abstract

Flux-density space-harmonics minimization for an axial-flux permanent-magnet machine

Cited by 3 publications

References 5 publications

A comparative analysis of four-pole brushless DC motors with different slot and winding arrangement based on THD values

A comparative analysis of four-pole brushless DC motors with different slot and winding arrangement based on THD values

Space Harmonics of Synchronous Machines Calculated by Finite Element Method

Space harmonics of synchronous machines calculated by finite element method

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