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Tytuł:
Single-phase line start permanent magnet synchronous motor
Autorzy:
Gwoździewicz, M.
Zawilak, J.
Powiązania:
https://bibliotekanauki.pl/articles/1372471.pdf
Data publikacji:
2011
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
silnik synchroniczny
silnik jednofazowy
magnes trwały
synchronous motor
single-phase motor
permanent magnet
Opis:
The paper deals with construction of single-phase line start permanent magnet synchronous motor. Circuit-field model based on the mass production single-phase induction motor was applied in Maxwell ver. 14 program. On the basis of obtained simulation results load characteristics: current, power factor and efficiency against load power were examined. Starting properties were also examined Obtained results of the single-phase line start permanent magnet synchronous motor properties were compared with the induction motor properties.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2011, 5, 93; 25-29
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance comparison of double stator permanent magnet machines
Autorzy:
Awah, Chukwuemeka Chijioke
Powiązania:
https://bibliotekanauki.pl/articles/2172793.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
demagnetization
double stator
induced voltage
losses
power and torque
Opis:
The electromagnetic and output performance characteristics of three (3) different types of double stator permanent magnet machines are quantitatively compared and presented in this study, in order to determine the most promising machine topology amongst the considered machine types, for potential practical applications(s). Two-dimensional (2D) and three-dimensional (3D) finite element analysis (FEA) methods are deployed in the computation of the performance metrics using ANSYS-MAXWELL software. The compared machines in this work are designated as: Machine 1, Machine 2 and Machine 3, respectively. The investigated machines have varying structural arrangements and two separate excitation sources. Machine 1 has its magnets situated in the outer stator with corresponding armature windings on both inner and outer stators. The magnets of Machine 2 are located in its inner stator while it has armature windings on both inner and outer stator parts. More so, Machine 3 is equipped with magnets in its inner and outer stators, though without armature windings on the inner stator section. The considered performance metrics include: inducedelectromotive force (induced-EMF), torque, power, demagnetization, losses and efficiency. The results show that the investigated Machine 3 has higher induced-EMF value and more sinusoidal electromotive force waveform than the other compared machines. Consequently, Machine 3 also has larger electromagnetic torque and power. Moreover, Machine 1 has the best flux-weakening potential, obtained from both the ratio of its maximum speed to base speed and the flux-weakening factor ( kp).
Źródło:
Archives of Electrical Engineering; 2022, 71, 4; 829--850
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cogging torque sensitivity to permanent magnet tolerance combinations
Autorzy:
Gašparin, L.
Fišer, R.
Powiązania:
https://bibliotekanauki.pl/articles/140762.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cogging torque
finite element method
harmonic components
PM synchronous motor
Opis:
This study presents the dependence of the level and harmonic structure of the cogging torque in permanent magnet synchronous motors (PMSM) to imperfections of permanent magnet (PM) dimensions and positions, which can not be avoided in massproduction. Slightly diverse dimensions and misplacements of PMs are introducing asymmetries in magnetic field distribution which cause additional harmonic components. A finite element method (FEM) and Fast Fourier transform (FFT) were used to calculate cogging torque harmonic components with regard to several combinations of PM assembly imperfections. It has been established and proved that unequal PMs cause magnetic asymmetries which give rise to additional cogging torque harmonic components and consequently increase the total cogging torque. It is also shown that in some particular combinations the influence of an individual PM imprecision could compensate with others due to different phase shifts which can result even in the decrease of cogging torque. Considering presented results it is possible to foresee which additional harmonic components will comprise the cogging torque of mass-produced PMSMs due to PM imperfections. In this way the designers are able to predetermine required manufacturing tolerances to keep the level of cogging torque in a admissible level. Simulation results were verified and confirmed by laboratory tests.
Źródło:
Archives of Electrical Engineering; 2013, 62, 3; 449-461
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parameters identification of coreless axial flux permanent magnet generator
Autorzy:
Radwan-Pragłowska, N.
Węgiel, T.
Borkowski, D.
Powiązania:
https://bibliotekanauki.pl/articles/140640.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
axial flux generator
permanent magnets
Opis:
This paper presents an analytical model of a three-phase axial flux coreless generator excited by permanent magnets, with special focus on determining the model parameters. An important aspect of this model is the derivation of a coefficient that corrects the flux on the inside and outside edges of the magnets. The obtained parameters are verified by performing field analyses and measurements. A comparison of the results show satisfactory convergence, which confirms the accuracy of the proposed analytical model.
Źródło:
Archives of Electrical Engineering; 2018, 67, 2; 391--402
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reluctance network model of a permanent magnet tubular motor
Autorzy:
Waindok, A.
Tomczuk, B.
Powiązania:
https://bibliotekanauki.pl/articles/386827.pdf
Data publikacji:
2017
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
reluctance network method
tubular linear motors
electrodynamic force calculation
Opis:
The reluctance network model of a permanent magnet tubular motor (PMTM) has been presented in the paper. The reluctance values of the magnetic circuit have been calculated with using analytical expressions. The air gap reluctance has been determined with using both analytical expressions and the finite element method (FEM). Using the calculation model, the flux values coupled with the windings have been obtained and used in the calculations of force value. The calculated results have been compared with numerical and measured ones.
Źródło:
Acta Mechanica et Automatica; 2017, 11, 3; 194-198
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phase Structure in Fe-Cr-Co Permanent Magnet Alloy
Autorzy:
Olszewski, J.
Szymura, S.
Wójcik, J.
Wysłocki, B.
Powiązania:
https://bibliotekanauki.pl/articles/1861167.pdf
Data publikacji:
1994-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.60.Gm
75.60.Ej
Opis:
The Mössbauer spectroscopy, electron microscopy and magnetization measurements were used in order to describe structural changes in Fe$\text{}_{58.75}$Cr$\text{}_{29.4}$Co$\text{}_{11.85}$ alloy during magnetic hardening. Multiphase structure was found in alloy with best magnetic properties.
Źródło:
Acta Physica Polonica A; 1994, 85, 1; 205-208
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Torque characteristics of double-stator permanent magnet synchronous machines
Autorzy:
Awah, C. C,
Okoro, O. I.
Powiązania:
https://bibliotekanauki.pl/articles/140529.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fault-tolerance
mutual-and self-inductance
power
static torque and torque-density
Opis:
The torque profile of a double-stator permanent magnet (PM) synchronous machine of 90 mm stator diameter having different rotor pole numbers as well as dual excitation is investigated in this paper. The analysis includes a comparative study of the machine’s torque and power-speed curves, static torque and inductance characteristics, losses and unbalanced magnetic force. The most promising flux-weakening potential is revealed in 13- and 7-rotor pole machines. Moreover, the machines having different rotor/stator (Nr/Ns) pole combinations of the form Nr = Ns ± 1 have balanced and symmetric static torque waveforms variation with the rotor position in contrast to the machines having Nr = Ns ± 2. Further, the inductance results of the analyzed machines reveal that the machines with odd rotor pole numbers have better fault-tolerant capability than their even rotor pole equivalents. A prototype of the developed double-stator machine having a 13-pole rotor is manufactured and tested for verification.
Źródło:
Archives of Electrical Engineering; 2017, 66, 4; 815-828
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and CAD of permanent magnet DC brushless motors
Autorzy:
Dąbrowski, M.
Rudeński, A.
Powiązania:
https://bibliotekanauki.pl/articles/141416.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
silnik bezszczotkowy prądu stałego
projektowanie maszyn elektrycznych
optymalizacja
brushless DC motor
design of electric machines
optimization
Opis:
The paper presents an algorithm and software for the optimal design of permanent magnet brushless DC motors. Such motors are powered by DC voltage sources via semiconductor switches connected to the motor phase belts. The software is adjusted to the design of motors with NdFeB high energy density magnets. An attention has been given to issues important in the design of the motors, i.e., permanent magnet selection, structure of magnetic circuit, and armature windings. Particularly, precision of calculation of the permanent magnet operating point, visualization of selection process of the winding belts, and magnetic circuit dimensioning have been investigated. The authors have been trying to make the equations more specific and accurate than those presented in the literature. The user software interface allows changes in the magnetic circuit dimensions, and in the winding parameters. It is possible to examine simultaneously the influence of these changes on the calculation results. The software operates both with standard and inverted (outer rotor) motor structure. To perform optimization, a non-deterministic method based on the evolution strategy (ž + λ) - ES has been used.
Źródło:
Archives of Electrical Engineering; 2010, 59, 1-2; 87-98
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
X-MCD Study of Expanded Lattice Permanent Magnet Materials
Autorzy:
Kapusta, Cz.
Mycielski, R.
Porębska, B.
Ahlers, D.
Attenkofer, K.
Fischer, P.
Schütz, G.
Powiązania:
https://bibliotekanauki.pl/articles/1964141.pdf
Data publikacji:
1997-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Dm
75.30.-m
Opis:
X-ray magnetic circular dichroism measurements on the cobalt (iron) K edges and samarium L$\text{}_{2}$, L$\text{}_{3}$ edges of Sm$\text{}_{2}$Fe$\text{}_{17}$, Sm$\text{}_{2}$Co$\text{}_{17}$ and their interstitial hydrides and nitrides are reported. Normal absorption profiles show considerable changes upon nitriding for iron- and cobalt K edge and for samarium L$\text{}_{2}$, L$\text{}_{3}$ edges. Much weaker changes are observed upon hydriding. Similarly, significant differences of X-MCD spectra appear between the host Sm$\text{}_{2}$Fe$\text{}_{17}$ (Sm$\text{}_{2}$Co$\text{}_{17}$) and the nitrides, whereas X-MCD signals of the hydrides are similar to those of the hosts. The effects are analysed and discussed in terms of influence of interstitial atom neighbours on the Co(Fe) 4p and Sm 5d electronic bands.
Źródło:
Acta Physica Polonica A; 1997, 91, 5; 975-979
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silniki tarczowe z magnesami trwałymi
Axial flux permanent magnet motors
Autorzy:
Glinka, T.
Król, E.
Białas, A.
Wolnik, T.
Powiązania:
https://bibliotekanauki.pl/articles/1373287.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
silnik elektryczny
silnik tarczowy
maszyna elektryczna
magnes trwały
Opis:
Presently, most relevant applications use radial flux machines. Design and production of these machines have been made both efficient and economical in the past few decades and now this type of electrical machine is used in almost every industry. However for some applications where the limiting factor is the length of the machine, better option might be to use axial flux permanent magnet machines. This type of machine is very highly efficient and provides very good power/mass and moment/mass ratio. Discussed in this paper are selected types of axial flux permanent magnet machines. Presented characteristics of disc-type motors include: TORUS NS, TORUS S, disc - type motor with salient poles, machines with an inner rotor and coreless machines.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2010, 87; 63-68
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Functional simulation model of the axial flux permanent magnet generator
Autorzy:
Gołębiowski, M.
Smoleń, A.
Gołębiowski, L.
Mazur, D.
Powiązania:
https://bibliotekanauki.pl/articles/141101.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
axial flux generator
circuit model
Simulink
Opis:
The paper discusses in detail the construction of the Core Less Axial Flux Permanent Magnet generator simulation model. The model has been prepared in such a way that full compatibility with the elements of the SimPowerSystem library of the Matlab/Simulink package is preserved, which allows easy use of the presented simulation model for testing the work of the generator as part of a larger system. The parameters used in the model come from the MES 3D calculations performed in the Ansys/Maxwell software, for a machine prototype with a rated power of 2.8 kW, which was then used to experimentally verify the correct operation of the presented model of machine.
Źródło:
Archives of Electrical Engineering; 2018, 67, 4; 857-868
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Algorytmy sterowania rowerowych napędów elektrycznych
Permanent magnet drive control algorithms
Autorzy:
Tatar, K.
Chudzik, P.
Powiązania:
https://bibliotekanauki.pl/articles/1199515.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
PMSM drive
BLDC drive
e-bike
electrical drive control algorithms
silniki PMSM
silniki BLDC
algorytmy sterowania napędami elektrycznymi
Opis:
Article presents and compares different types of permanent magnet drive control algorithms, used in e-bikes. Authors depict drive structures, analog measurement units, ancillary equipment and control algorithms. As a result of study oscillograms of current, voltage and logic signals measurement were included.
W artykule przedstawiono i porównano różne rodzaje sterowania typowymi silnikami z magnesami trwałymi, stosowanymi do napędzania rowerów elektrycznych. Autorzy zaprezentowali struktury układów napędowych, urządzenia pomocnicze, układy pomiarowe sygnałów analogowych oraz stosowane algorytmy sterowania. W pracy zamieszczono wyniki badań w postaci oscylogramów napięć i prądów płynących w elementach układu.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2017, 2, 114; 17-23
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Digital control system design for bearingless permanent magnet synchronous motors
Autorzy:
Sun, X.
Shi, Z.
Yang, Z.
Wang, S.
Su, B.
Chen, L.
Li, K.
Powiązania:
https://bibliotekanauki.pl/articles/202311.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
BPMSMs
cyfrowy system kontroli
podwójnie zamknięty system regulacji prędkości
projektowanie oprogramowania
projekt sprzętu
digital control system
double-closed speed regulating system
software design
hardware design
Opis:
This study investigates a digital control system which is used in bearingless permanent magnet synchronous motors (BPMSMs). Compared with traditional permanent magnet synchronous motors, a BPMSM is characterized by higher speed and no mechanic friction. Therefore, the application value of the latter to the special area is higher than that of the former. An analysis from previous work on the BPMSM had proved its feasibility, and some performances such as suspension force, inductance and so on were also investigated. Based on this analysis, this study focuses on solving control problems in practical applications by designing a control system. The control system design includes overall schematic, hardware and software designs. Main software systems, including the force/current transform module and closed loop control module for radial displacement, are analyzed. Interface circuit for radial displacement, current feedback circuit and dead zone protection circuit are designed for the hardware system. Finally, several performance experiments have been conducted to verify the effectiveness of the designed digital control system. Experiment results indicate that the rotor has unique characteristics, such as stable suspension performance, good start-of-suspension performance, and rapid anti-disturbance features.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 5; 687-698
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prognosing the stability of permanent magnet by investigation of Barkhausen noise
Autorzy:
Pilot, M.
Powiązania:
https://bibliotekanauki.pl/articles/114385.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
barkhausen noise
permanent magnet
Opis:
A problem of measurement of Barkhausen noise coming from permanent magnet is investigated in the paper. This is important for correct conclusion when permanent magnet parameters are measured. Currently, Barkhausen noise is measured for soft magnetic materials for detecting material defects, for example, a microcracks and a tensions. A measurement of Barkhausen noise in permanent magnets may be useful for prognosing the stability of magnets working at duty cycles. Changes of working point of permanent magnet caused by cyclic external load can be examined in dedicated laboratory stand. In the paper first the measuring stand is presented, next the mathematical model of permanent magnet parameters is discussed and the measurement results are presented. They show that magnetoacoustic and electromagnetic phenomena are observed in the permanent magnet under test and their parameters may be measured.
Źródło:
Measurement Automation Monitoring; 2017, 63, 7; 248-251
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Single-phase line start permanent magnet synchronous motor with skewed stator
Autorzy:
Gwoździewicz, M.
Zawilak, J.
Powiązania:
https://bibliotekanauki.pl/articles/1193249.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
single-phase motor
permanent magnet
skew
vibration
Opis:
The article deals with single-phase line start permanent magnet synchronous motor with skewed stator. Constructions of two physical motor models are presented. Results of the motors running properties are analysed.
Źródło:
Power Electronics and Drives; 2016, 1, 36/2; 187-194
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 430

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