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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
Tytuł:
Control and Operation of a Hybrid Actuator for Maglev Applications
Autorzy:
Rickwärtz, Jan Philipp
Kolb, Johann
Franck, Marius
Hameyer, Kay
Powiązania:
https://bibliotekanauki.pl/articles/1955978.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
Maglev
electromagnetic levitation
controlled permanent magnet
hybrid actuator
Opis:
The hybrid actuator presented in this article is meant to enable stationary and slow dynamic levitation in Maglev applications. The term 'hybrid' refers to the design of the actuator, which is a combination of permanent magnets (PM) and electromagnets. This paper presents an analytically computable control algorithm for the said hybrid actuator. The theory of magnetic circuits is summarized shortly and used to derive a cascaded control loop consisting of an inner current controller and an outer air gap controller. Since the uncontrolled hybrid actuator is inherently unstable, the system has to be stabilized. By introducing a PID-controller into the air gap control loop, the unstable behaviour of the uncontrolled system is changed into the system behaviour of a damped harmonic oscillator. The advantage of this approach is that the computed controller parameters of the PID-controller can easily be adjusted, so the system behaviour of damping and eigenfrequency can be selected within a certain range. For the execution of the control algorithm, a microcontroller (MCU) is used and for precise air gap measurement, an eddy current sensor is installed. Finally, the behaviour of the current- and air gap controller is discussed for different measurement results and the adjustable system behaviour of the damped harmonic oscillator is presented.
Źródło:
Power Electronics and Drives; 2021, 6, 41; 128-143
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Starting properties of single-phase line-start permanent magnet synchronous motor
Właściwości rozruchowe jednofazowego silnika synchronicznego z magnesami trwałymi o rozruchu bezpośrednim
Autorzy:
Gwoździewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1813927.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
single-phase motor
permanent magnet synchronous motor
permanent magnets
roller blinds
Opis:
Artykuł przedstawia wyniki badań właściwości rozruchowych jednofazowego silnika synchronicznego z magnesami trwałymi o rozruchu bezpośrednim. W programie Maxwell wersja 16.0 zbudowano model polowo-obwodowy jednofazowego PMSM zaprojektowanego na bazie stojana jednofazowego silnika synchronicznego SEh 80-2B. W trakcie badań egzaminowano moment hamujący od magnesów trwałych, moment całkowity silnika i moment asynchroniczny od klatki wirnika.
Źródło:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały; 2013, 69, 33; 428--433
1733-0718
Pojawia się w:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparison of operation properties of a high-efficiency squirrel-cage induction motor and LSPMSM
Autorzy:
Jażdżyński, W.
Bajek, M.
Powiązania:
https://bibliotekanauki.pl/articles/1813500.pdf
Data publikacji:
2012
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
permanent magnet synchronous motors
induction motors
high efficiency motors
optimization
Opis:
In the paper some results of design optimization calculations performed for induction motors with both the aluminum and copper cages, as well as for a line start permanent magnet synchronous motor (LSPMSM) with ratings PN=0.75kW, UN=400V, fN=50Hz, 2p=4 are presented. Basing upon obtained optimal designs, the prototypes of the LSPMSM and an induction motor with a reduced rated power PN=0.55kW have been manufactured. The experiments have proved that the LSPMSM has a selfstarting and sufficient overloading ability, and its rated efficiency (according to standards - direct efficiency determination by means of the torque meter test) is circa 89.1%. The properties of the optimized prototype of the induction motor could not be determined due to a delay in its correct manufacturing.
Źródło:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały; 2012, 66, 32; 238-243
1733-0718
Pojawia się w:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the permanent magnets arrangement on the single-phase line start permanent magnet synchronous motor performances
Wpływ sposobu ułożenia magnesów trwałych w wirniku jednofazowego silnika synchronicznego z magnesami trwałymi na jego parametry
Autorzy:
Gwoździewicz, M.
Zawilak, J.
Powiązania:
https://bibliotekanauki.pl/articles/1813549.pdf
Data publikacji:
2012
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
single-phase motor
synchronous motor
permanent magnet
high efficiency motor
Opis:
W artykule przedstawiono konstrukcje jednofazowych silników synchronicznych z magnesami trwałymi. W programie Maxwell zbudowano modele jednofazowych silników synchronicznych z magnesami trwałymi bazujące na jednofazowym silniku indukcyjnym produkcji seryjnej. Zbadano wpływ sposobu ułożenia magnesów na właściwości silnika. Zaprezentowano parametry eksploatacyjne jednofazowego silnika synchronicznego z magnesami trwałymi o rozruchu bezpośrednim.
Źródło:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały; 2012, 66, 32; 267-272
1733-0718
Pojawia się w:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of star-delta mixed stator winding in permanent magnet synchronous machines with permanent magnets on the rotor surface
Zastosowanie uzwojenia mieszanego stojana typu gwiazda-trójkąt w maszynach synchronicznych o magnesach trwałych
Autorzy:
Gwoździewicz, M.
Gawron, S.
Powiązania:
https://bibliotekanauki.pl/articles/1807525.pdf
Data publikacji:
2011
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
higher harmonics
synchronous motor
synchronous generator
permanent magnet
winding factor
windings
Opis:
W artykule przedstawiono rezultaty zastosowania uzwojenia mieszanego stojana typu gwiazdatrójkąt w maszynach synchronicznych o magnesach trwałych. Na bazie produkowanej przez KOMEL maszyny synchronicznej o magnesach trwałych typy PMGg180L-8 został zbudowany model polowoobwodowy w programie Maxwell wersja 14. Zbadano wpływ zastosowania uzwojenia mieszanego stojana typu gwiazda trójkąt na występowanie wyższych harmonicznych oraz właściwości eksploatacyjne maszyn synchronicznych o magnesach trwałych.
Źródło:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały; 2011, 65, 31; 55-63
1733-0718
Pojawia się w:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Various Rotor Topologies of Line-Start Synchronous Motor for Efficiency Improvement
Autorzy:
Sarac, Vasilija Jovan
Stefanov, Goce
Powiązania:
https://bibliotekanauki.pl/articles/1193858.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
line-start synchronous permanent magnet motor
rotor topology
transient characteristics
FEM
Opis:
Line-start synchronous permanent magnet motor (LSSPMM) is being considered as a replacement or alternative to asynchronous squirrel-cage motor (AM) in constant speed applications. This is due to the better efficiency and power factor than the asynchronous motor. There are various rotor topologies of LSSPMM concerning the magnets placement and their dimensions. The paper analyses six different rotor topologies in terms of achieving the best efficiency and power factor for the same output power of the motor with minimal consumption of permanent magnet material. All other motor design parameters remain unchanged, i.e. all motor topologies are analysed for the same stator laminations and the same motor windings. The numerical finite element method (FEM) models and dynamic models for obtaining transient characteristics of speed, torque and current verify the proposed design of various motor models. The results from all motor models are compared and adequate conclusions are derived regarding the optimal rotor topology in terms of obtaining the best efficiency and power factor with minimal consumption of permanent magnet material, for the same output power of the motor.
Źródło:
Power Electronics and Drives; 2020, 5, 40; 83-95
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and electromagnetic field simulation of disk stepper motor with permanent magnets
Autorzy:
Kaňuch, J.
Ferková, Ž.
Powiązania:
https://bibliotekanauki.pl/articles/1812176.pdf
Data publikacji:
2012
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
stepper motor
disk rotor
permanent magnet
axial flux
electromagnetic field simulation
Opis:
This paper presents the design and the electromagnetic field simulation of axial-flux permanentmagnet stepper motor with the disc type rotor. The stepper motor with disc type permanent magnet rotor shows the advantages of higher torque at high speed, low moment of inertia, high torque to weight ratio, low power consumption and ironless rotor having minimum iron loss using permanent magnets and prepregs. This paper describes a design of four phase microstepping motor with the disc type rotor. The FEM modeling and the 3D electromagnetic field simulation of the disk stepper motor with permanent magnets is being subject of the article, too. Disc rotor type permanent magnet stepper motor for high torque to inertia ratio is ideal for robotics and CNC machines.
Źródło:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały; 2012, 66, 32; 48-59
1733-0718
Pojawia się w:
Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vertical transportation: effects of harmonics of drives by PM machines
Autorzy:
Anand, R.
Gayathridevi, B.
Keshavan, B. K.
Powiązania:
https://bibliotekanauki.pl/articles/1193671.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
elevator
permanent magnet synchronous machine
adjustable speed drive
quality
safety
reliability
robustness
Opis:
Permanent magnet motor drive is a widely used technology, offering many advantages, such as exceptional speed, torque control and greater flexibility. Improvement of reliability and efficiency has become a great research interest. Towards this direction and taking into account the major developments in permanent machine technology over the recent years, the use of energy recovery converters has been introduced in various industrial applications. In this paper, the effects of harmonics on a three-phase motor controlled by a drive are analysed, and the behaviours of the filter topology after adopting regenerative drives are studied. The main contribution of this study is a methodology to foresee the standards that can be achieved with the use of an active front end system topology with filters. Moreover, the use of an optimum filter that eases the power system distortion is presented. The analysis presented in this paper is validated experimentally.
Źródło:
Power Electronics and Drives; 2018, 3, 38; 47-53
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parametric analysis for the design of a 4 pole radial permanent magnet generator for small wind turbines
Autorzy:
Quintal-Palomo, R.
Dybkowski, M.
Gwoździewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1193263.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
permanent magnet synchronous generator
PMSG
finite element analysis
FEA
small wind turbines
SWT
Opis:
A review of the literature gives several guidelines for the design of a Permanent Magnet Synchronous Generator (PMSG) for Small Wind Turbines (SWT) applications. This paper presents Finite Element Analysis (FEA) of a Surface Mounted PMSG. Several optimization tests are run in order to yield the lowest Total Harmonic Distortion (THD) and cogging torque with the highest induced voltage. The results of the optimization tests are then utilized to design an initial “optimized” circumferential Internal PMSG. This optimized design is then compared to a non-optimized design, as well as the results of the Surface Mounted PMSG.
Źródło:
Power Electronics and Drives; 2016, 1, 36/2; 175-186
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected Nature-Inspired Algorithms in Function of PM Synchronous Motor Cogging Torque Minimisation
Autorzy:
Cvetkovski, Goga Vladimir
Petkovska, Lidija
Powiązania:
https://bibliotekanauki.pl/articles/1955984.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
permanent magnet synchronous motor
optimisation method
cogging torque
genetic algorithm
finite element method
Opis:
Both permanent magnet brushless DC motors and permanent magnet synchronous motors have attracted wide attention and are increasingly used in industrial high-performance applications in recent years. Those motors are known for their good electrical, magnetic and performance characteristics, but there is one parameter known as cogging torque that has a negative influence on the performance characteristics of the motor. This pulsating torque is generated as a result of the interaction between the stator teeth and the permanent magnets. The minimisation of the ripple of this torque in those permanent magnet motors is of great importance and is generally achieved by a special motor design which in the design process involves a variety of many geometrical motor parameters. In this research work, a novel approach will be introduced where two different nature-inspired algorithms, such as genetic algorithm (GA) and cuckoo search (CS) algorithm are used as an optimisation tool, in which the defined equation for the maximum value of the cogging torque is applied as an objective function. Therefore, a proper mathematical presentation of the maximum value of the cogging torque for the analysed synchronous motor is developed and implemented in the research work. For a detailed analysis of the three different motor models, the initial motor and the two optimised motor models are modelled and analysed using a finite element method approach. The cogging torque is analytically and numerically calculated and the results for all the models are presented.
Źródło:
Power Electronics and Drives; 2021, 6, 41; 204-217
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Spectral and Wavelet Analysis of Stator Current to Detect Angular Misalignment in PMSM Drive Systems
Autorzy:
Pietrzak, Przemysław
Wolkiewicz, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1956007.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
fault diagnosis
permanent magnet synchronous motor
angular misalignment
fast Fourier transform
discrete wavelet transform
Opis:
This paper deals with the selected methods of detecting angular misalignment in drive systems with a permanent magnet synchronous motor (PMSM), which are based on the analysis of the stator phase current signal, as well as their experimental verification and comparison. The proposed and compared methods are spectral analysis and wavelet analysis of the stator current, stator current envelope, stator current space vector module. Furthermore, the influence of power supply frequency and load torque on the performance of the proposed diagnostic methods is also discussed. The experimental tests were carried out for an undamaged motor and for two levels of angular misalignment. The article discusses the question of exactly what damage symptoms can be extracted from each of the methods. In the case of spectral analyses, it is demonstrated which multiplicities of the failure frequency are the most sensitive to misalignment and the least sensitive to changes in motor operating condition, which may be considered novel in the case of drive systems with permanent magnet motors. It is also proven that discrete wavelet transform (DWT) of the envelope and monitoring of the value of the relevant components allows the detection of misalignment with the availability of measuring current only in one phase in various motor operating conditions.
Źródło:
Power Electronics and Drives; 2021, 6, 41; 42-60
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Derivation of Motor Mean Phase Currents in PMSM Drives Operating with Low Switching-to-Fundamental Frequency Ratio
Autorzy:
Jarzebowicz, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/1193701.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
electric drives
high-speed drives
current control
current measurement
Permanent Magnet Synchronous Drives
Digital Signal Processing
Opis:
Pulse width modulation (PWM) of inverter output voltage causes the waveforms of motor phase currents to consist of distinctive ripples. In order to provide suitable feedback for the motor current controllers, the mean value must be extracted from the currents’ waveforms in every PWM cycle. A common solution to derive the mean phase currents is to sample their value at the midpoint of a symmetrical PWM cycle. Using an assumption of linear current changes in steady PWM subintervals, this midpoint sample corresponds to the mean current in the PWM cycle. This way no hardware filtering or high-rate current sampling is required. Nevertheless, the assumption of linear current changes has been recently reported as over simplistic in permanent magnet synchronous motor (PMSM) drives operating with low switching-to-fundamental frequency ratio (SFFR). This, in turn, causes substantial errors in the representation of the mean phase currents by the midpoint sample. This paper proposes a solution for deriving mean phase currents in low SFFR PMSM drives, which does not rely on the linear current change assumption. The method is based on sampling the currents at the start point of a PWM cycle and correcting the sampled value using a model-based formula that reproduces the current waveforms. Effectiveness of the method is verified by simulation for an exemplary setup of high-speed PMSM drive. The results show that the proposed method decreases the error of determining the mean phase currents approximately 10 times when compared to the classical midpoint sampling technique.
Źródło:
Power Electronics and Drives; 2019, 4, 39; 95-102
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Introduction to the Special Section on Intelligent Fault Monitoring and Fault–Tolerant Control in Power Electronics, Drives and Renewable Energy Systems
Autorzy:
Malinowski, Mariusz
Levi, Emil
Orlowska-Kowalska, Teresa
Powiązania:
https://bibliotekanauki.pl/articles/1193706.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
electrical drives
permanent magnet machine
induction motors
sensor fault
winding fault
demagnetization fault
neural networks
observers
Opis:
This article constitutes an introductory part of the special section on Intelligent Fault Monitoring and Fault-Tolerant Control in Power Electronics, Drives and Renewable Energy Systems. In the current issue of the journal, the first part of this section is published. Accepted articles are focussed mainly on the sensor-fault diagnosis methods for T-type inverter-fed dual- three phase PMSM drives, partial demagnetization, faults of the permanent magnet synchronous generator (PMSG) and online open phase fault detection (FD) in the sensorless five-phase induction motor drive implemented with an inverter output LC filter and third harmonic injection. Also, neural networks (NN) application in the detection of stator and rotor electrical faults of induction motors has been proposed in one of the papers, and the observer-based FD concept for unknown systems using input–output measurements was applied to a brushless direct current motor drive with unknown parameters.
Źródło:
Power Electronics and Drives; 2019, 4, 39; 163-165
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stator Winding Fault Detection of Permanent Magnet Synchronous Motors Based on the Short-Time Fourier Transform
Autorzy:
Pietrzak, Przemysław
Wolkiewicz, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2175935.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
fault diagnosis
condition monitoring
inter-turn short circuit
permanent magnet synchronous motor
short-time Fourier transform
Opis:
In modern drive systems, the high-efficient permanent magnet synchronous motors (PMSMs) have become one of the most substantial components. Nevertheless, such machines are exposed to various types of faults. Hence, on-line condition monitoring and fault diagnosis of PMSMs have become necessary. One of the most common PMSM faults is the stator winding fault. Due to the destructive character of this failure, it is necessary to use fault diagnostic methods that allow fault detection at its early stage. The article presents the results of experimental studies obtained from fast Fourier transform (FFT) and short-time Fourier transform (STFT) analyses of the stator phase current, stator phase current envelope and stator phase current space vector module. The superiority of the proposed method over the classical approach based on the stator current analysis using FFT is highlighted. The proposed solution is experimentally verified under various motor operating conditions. The application of STFT analysis discussed so far in the literature has been limited to the fault diagnosis of induction motors and the narrow range of the analysed motor operating conditions. Moreover, there are no works in the field of motor diagnostics dealing with STFT analysis for stator windings based on the stator current envelope and the stator current space vector module.
Źródło:
Power Electronics and Drives; 2022, 7, 42; 112--133
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
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