Axial flux machines modelling with the combination of 2D FEM and analytic tools

Egea, Aritz; Almandoz, Gaizka; Poza, Javier; Gonzalez, A.

doi:10.1109/icelmach.2010.5608115

Cited by 12 publications

(10 citation statements)

References 5 publications

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“…The output voltage waveform of the AFPMG was viewed and Fourier analysis was conducted to determine harmonic contents. The designed AFPMG has reduced 3rd harmonic (10.7%) than the AFPMG with rectangular magnets [17] (12.5%) in output voltage waveform. The voltage of the fabricated AFPMG also has significantly reduced value of 5th harmonic (0.54%) than the AFPMG with rectangular magnets [17] (16%).…”

Section: Proposed Workmentioning

confidence: 99%

“…The designed AFPMG has reduced 3rd harmonic (10.7%) than the AFPMG with rectangular magnets [17] (12.5%) in output voltage waveform. The voltage of the fabricated AFPMG also has significantly reduced value of 5th harmonic (0.54%) than the AFPMG with rectangular magnets [17] (16%). The three-stator and four-rotor topology of the proposed AFPMG is shown in Figure 1.…”

Section: Proposed Workmentioning

confidence: 99%

“…A two-rotor and one-stator topology of AFPMG has been considered for analysis with a back iron on rotor plates [16]. A time saving analysis method of 2-dimensional finite element analysis along with analytical tools has been presented for design analysis of AFPMGs [17]. Design considerations such as wound concentrated coils, design features, sizing equations, and sensitivity analysis regarding AFPMGs have been discussed [18].…”

Section: Related Workmentioning

confidence: 99%

“…A higher value of this parameter reflects the minimization of the machine's active mass while maximizing its electromagnetic torque. Once the output voltage and full load current are known at pure resistive load, the electromagnetic torque (T e ) of the AFPMG is given by [17] …”

Section: Torque-to-weight Ratiomentioning

confidence: 99%

“…The comparison is shown in Table 4. The fundamental, 3rd, and 5th harmonics of voltage waveform were rescaled to compare harmonic contents of the designed AFPMG model with the AFPMG with rectangular magnets [17] graphically. From the graphical results, it is clear that 3rd harmonic was reduced while the presence of 5th harmonic was reduced significantly on rescaled values.…”

Section: Harmonic Analysis Of Voltage Waveformmentioning

confidence: 99%

See 4 more Smart Citations

Design of a three-phase multistage axial flux permanent magnet generator for wind turbine applications

Ashraf¹,

Malik²

2017

Turk J Elec Eng & Comp Sci

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Presently, axial flux permanent magnet machines are becoming popular and are being deployed actively for low speed applications. This paper presents an improved model of a multistage axial flux permanent magnet generator (AFPMG). The multistage AFPMG consists of multiple stator and rotor discs. There are three identical 1-phase stator discs and four in-phase rotor discs in the proposed multistage AFPMG. In this research, 4 case studies were analyzed on the design of the multistage AFPMG. First, a phase shift model (PSM) positions the three 1-phase stator discs to behave as a 3-phase generator. Actually, the PSM computes phases for three stator discs in order to establish phase shift of 120• between each two phases. The implementation of the presented model in the multistage AFPMG reduces the diameter of the stator disc three times as compared to the conventional 3-phase AFPMG with identical rated specifications. Second, the voltage waveform of the AFPMG was analyzed for harmonic contents and the percentages of 3rd and 5th harmonics were computed. The test results show that 3rd and 5th harmonics were reduced to 10.7% and 0.54%, respectively, in voltage waveform. Third, the proposed multistage AFPMG was designed considering begin-to-end winding connections of the stator disc. While adopting begin-to-end connection, the number of poles of the AFPMG are doubled, which ultimately increases air-gap flux density and thus the terminal voltage of the stator disc and operating shaft speed is halved. The test results show that the torque-to-weight ratio parameter of the designed AFPMG was improved by using a begin-to-end connection for the stator disc. Fourth, the increased air-gap flux density also improves the power density parameter of the AFPMG with a begin-to-end winding connection.Moreover, a prototype model of a 1200-W multistage AFPMG was designed and fabricated while following PSM and begin-to-end winding connection and tested. Thus the test results verify the proposed model of the multistage AFPMG for wind turbine applications.

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Section: Proposed Workmentioning

confidence: 99%

Section: Proposed Workmentioning

confidence: 99%