Effect of PM parameters variability on the operation quantities of a wind generator

Kallaste, Ants; Belahcen, Anouar; Vaimann, Toomas

doi:10.1109/wemdcd.2015.7194536

Cited by 5 publications

(3 citation statements)

References 26 publications

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“…Previous work on the impact of tolerances in PM synchronous machines has mainly been focused on the effects on the cogging torque in motors, with the number of poles in the range of 6 to 10 [5]- [7], as well as one study on a 20 pole axial flux PM motor [8]. Earlier work on tolerances in manypole PMSGs has investigated the impact of the variability of PM material properties on losses through simulations [9]. There is also earlier work experimentally investigating the impact of the air gap length varying between poles on the output voltage [10].…”

Section: Location Of B δ Hall Probementioning

confidence: 99%

Air gap magnetic flux density variations due to manufacturing tolerances in a permanent magnet synchronous generator

Eklund

Eriksson

2016

2016 XXII International Conference on Electrical Machines (ICEM)

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The impact of manufacturing tolerances on the performance of a permanent magnet synchronous generator is investigated. A generator with a flux concentrating spoketype rotor, with ferrite permanent magnets, is used in the investigation. Measurements of the air gap magnetic flux density, the air gap length, as well as the magnetization and size of the permanent magnets have been performed. Correlations are calculated and causalities are discussed. It is found that the permanent magnets used are below tolerance in remanent magnetic flux density, that the air gap length is smaller than specified, and that the resulting air gap magnetic flux density is lower than specified. From the results it can be concluded that the design should be made with tolerances in mind and that quality control of parts, especially of PM magnetization, is important for machine performance.

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Section: Location Of B δ Hall Probementioning

confidence: 99%

Air gap magnetic flux density variations due to manufacturing tolerances in a permanent magnet synchronous generator

Eklund

Eriksson

2016

2016 XXII International Conference on Electrical Machines (ICEM)

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“…There are several types of permanent magnets (PM) that can be used in generator: Alnico, SmCo, NdFeB, ferrites [2]. In this study, neodymium magnets are investigated, as they offer relatively high-energy product and have high coercivity.…”

Section: Introductionmentioning

confidence: 99%

“…The investigation is based on the finite element analysis. The literature that concerns the analysis of fault detection in PM machines is mostly focused on the problems related to demagnetisation [2]- [5]. No importance has been given to variability in the PM characteristics and their effect on the output quantities of the machine.…”

Section: Introductionmentioning

confidence: 99%

Influence of Permanent Magnet Characteristic Variability on the Wind Generator Operation

Kudrjavtsev

Kallaste

Kilk

et al. 2017

Latvian Journal of Physics and Technical Sciences

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The paper discusses problems concerning the influence of permanent magnet material characteristics on the low-speed permanent magnet generator losses and output characteristics. The variability of the magnet material and its effect on the output parameters of the machine has been quantified. The characteristics of six different grades of neodymium permanent magnets have been measured and compared to the supplier specification data. The simulations of the generator have been carried out using transient finite element analysis. The results show that magnet materials from different suppliers have different characteristics, which have a significant influence on the generator output parameters, such as efficiency and power factor.

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Influence of choice of permanent magnet electromagnetic parameters in the research of electrical devices

Ose-Zala

Kallaste

Vaimann

2016

2016 Electric Power Quality and Supply Reliability (PQ)

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Effect of PM parameters variability on the operation quantities of a wind generator

Cited by 5 publications

References 26 publications

Air gap magnetic flux density variations due to manufacturing tolerances in a permanent magnet synchronous generator

Air gap magnetic flux density variations due to manufacturing tolerances in a permanent magnet synchronous generator

Influence of Permanent Magnet Characteristic Variability on the Wind Generator Operation

Influence of choice of permanent magnet electromagnetic parameters in the research of electrical devices

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