Particular aspects concerning the design of a brushless DC electric motor driving a mini-scooter

Author(s):  
Nicolae Marian-Stefan ◽  
Presura Raluca-Cristina ◽  
Vlad Ion ◽  
Nicolae Petre-Marian ◽  
Smarandescu Ionut-Daniel
Author(s):  
Chityala Revanth Kumar Reddy

This paper represents the performance of placement control of step motor (Brushless DC electric motor) using LabVIEW. Step motors are Applicable in many industries and factories where accurate control of motor position is necessary. In this work, half step and full step manner of step motor control is implemented. The experiment outcome show that half step manner makes an angle of 0.6 degree per step (300 steps), considering full step makes 1.2 degree per step (150 steps). With LabVIEW the arrangement has friendly communication, better control result and uncomplicated control in both ways.


2016 ◽  
Author(s):  
Jakub Drozd ◽  
Mariusz Duk ◽  
Michał Borecki

Author(s):  
U. Karthick ◽  
A. Vimal Kodeeswaran ◽  
P. Ashokkumar

In order to maintain a sustainable development and pollution free environment, hybrid vehicles are being made, which have the advantages of both I.C. engines and electric motors. Till date, hybrid technology implemented in a two wheeler has not hit the market yet due to cost issues and nonavailability of resources. We have made an attempt to implement hybrid technology in two wheelers. We have modified a conventional motorcycle using double sprocket, flywheel, brushless DC electric motor and an alternator.We have installed all the components, tested and found it to be successful as it satisfies our objectives by showing enhanced performance.


Author(s):  
Sundhy Pareza ◽  
Purwantono Purwantono ◽  
Remon Lapisa ◽  
Primawati Primawati

The issue of global warming is very strong in the force in the procession, the damage caused by global warming is very influential in the survival of living beings. The methods performed in this study are experimental methods. The experiments performed were to make a design and to become a unity so that it formed a tool of electric bicycle transportation that can be used well. This thesis author devise and assemble electric bicycle using DC electric motor 24 Volt 250 Watt and 3000 rpm. The power system used is 24 Volt 12 Ampere battery. From the results of the test and analysis of data that has been taken on the electric bicycle obtained data of the average speed obtained by the electric bike with a load of 78 = 4.94 m/s, load 83 = 4.59 m/s, load 88 = 4.25 m/s, power output to drive electric bicycle with load 78 = 266.679 Watt, load 83 = 263.810 Watt, load 88 = 258.984 Watt. Isu pemanasan global sangat kuat di gencar disuarakan, kerusakan yang disebabkan pemanasan global sangat berpengaruh pada kelangsungan hidup makluk hidup. Metode yang dilakukan dalam penelitian ini adalah metode eksperimen. Eksperimen yang dilakukan adalah membuat sebuah rancangan dan merakitnya menjadi suatu kesatuan sehingga terbentuk sebuah alat transportasi sepeda listrikyang dapat digunakan dengan baik. Skripsi ini penulis merancang dan merakit sepeda listrik dengan menggunakan motor listrik DC 24 Volt 250 Watt dan 3000 rpm. Sistem daya yang digunakan adalah baterai 24 Volt 12 Ampere. Dari hasil pengujian dan analisis data yang telah diambil pada sepeda listrik didapatkan data berupa kecepatan rata-rata yang didapatkan sepeda listrik dengan beban 78 = 4,94 m/s, beban 83 = 4,59 m/s, beban 88 = 4,25 m/s, daya output untuk menggerakkan sepeda listrik  dengan beban 78 = 266,679 Watt, beban 83 = 263,810 Watt, beban 88 = 258,984 Watt.


Vestnik IGEU ◽  
2020 ◽  
pp. 31-45
Author(s):  
T.H. Abuziarov ◽  
A.S. Plehov ◽  
A.B. Dar’enkov ◽  
A.I. Ermolaev

When designing electric drives based on brushless DC motors with permanent magnets (BLDC), which have low level torque pulsations, the problem of modelling non-standard topological solutions appears. The known models of BLDC motors are either based on the assumptions about the symmetry of the stator pa-rameters of the electric motor and/or the ideal form of the phase back-EMF waveform, which reduce the accuracy of evaluating the effectiveness of the proposed solutions or prove unusable for modelling an operation of the electric motor with a non-standard semiconductor converter. It is necessary to develop a mathematical model of the BLDC motor-based electric drive that takes into account the structural features of the electric motor and allows for semiconductor converter configuration variability. The model is designed in the Matlab Simulink environment. The verification is carried out by comparing the modelling results with experimental data obtained previously by other researchers. The proposed method for generating phase back-EMF in the BLDC motor model provides the possibility for the user to set the EMF form templates independent for each phase. The proposed method for stator circuit simulating provides the user with access to each of the stator windings leads as well as with the possibility of asymmetric determination of each parameter of the electric motor. Upon verification, it has been shown that the difference in the control points between the simulated and experimental speed-torque curves does not exceed 3,5 %. The developed model allows analyzing the static and dynamic characteristics of operation modes of non-standard topology BLDC motor-based electric drives taking into account the stator pa-rameters asymmetry and the real phase back-EMF waveform. The specified features of the model allow exploring the operation of the designed electric drive, taking into account the BLDC motor and converter design. The model can be applied when checking atypical design decisions and when changing the set parameters of the electric drive and restrictions on working conditions and target functions to refine the control system algorithms and automate the search for optimal parameters of the motor and the semiconductor converter.


Author(s):  
Kyoungchul Kong ◽  
Helge C. Kniep ◽  
Masayoshi Tomizuka

Input saturation is a well-known nonlinearity in mechanical control systems; it constrains the maximum acceleration, which results in the limitation of the system response time. Input saturation has been considered in controller design in various ways, e.g., antiwindup control. In addition to the input, the state variables of mechanical systems are often subjected to saturation. For example, the maximum angular velocity of electric motor systems is limited by the maximum voltage provided to the motor windings. In the case of electronically commutated motors (i.e., brushless dc motors), the maximum speed is additionally constrained by limitations of the servo amplifier output. If gears are utilized, further constraints are introduced due to resonances in ball bearings and/or velocity dependent friction. Although such factors are significant in practice, they have not been fully considered in controller design. This paper investigates the input and output saturations, and presents how they may be considered in the controller design; a Kalman filter, a PID controller, and a disturbance observer are designed, taking input/output saturations into consideration. A case study is provided to verify the proposed methods.


1997 ◽  
Vol 81 (8) ◽  
pp. 5100-5102 ◽  
Author(s):  
G. K. Nicolaides ◽  
Y. K. Atanassova ◽  
M. G. Ioannides ◽  
D. M. Tsamakis ◽  
H. Gamari-Seale

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