scholarly journals Performance analysis of brushless DC motor with optimum magnetic energy for bicycle application

2021 ◽  
Vol 12 (4) ◽  
pp. 2113
Author(s):  
Muhamad Ariff Khalid ◽  
Raja Nor Firdaus Kashfi Raja Othman ◽  
Nor Aishah Md Zuki ◽  
Fairul Azhar Abdul Shukor ◽  
Md Nazri Othman ◽  
...  
Keyword(s):  
Magnetic Energy ◽  
Dynamic Condition ◽  
Load Condition ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Density Parameter ◽  
Electromagnetic Torque ◽  
Bldc Motor ◽  
Brushless Dc ◽  
Electric Bicycle

<span lang="EN-US">Brushless DC (BLDC) motor is widely used for various applications such as transportation. BLDC motor has many advantages compared to brush motor such as more compact, high robustness and simplest construction. The maintenance of this motor also low compared to brush motor due to absent of the brush inside the motor. For electric bicycle application, the conventional motor has low electromagnetic torque because not properly designed. It faces low torque density as the motor in full load condition especially during climb uphill. In this research, an optimum magnetic energy is being determine by proper selection of permanent magnet size. In addition, this research also increases the input current in dynamic condition into the designed BLDC motor. Finite element method (FEM) is used to analyze other performance characteristic of improved motor such as back electromotive force (EMF), electromagnetic torque, flux linkage, and stator flux density. Parameter for improve the current motor are selected and varied based on the required specification. In conclusion, the research proposed the new motor specification that has highest electromagnetic torque of brushless DC motor. Finally, this research provides guidelines, suggestions and proposes a better improved structure in optimize the magnetic energy in BLDC motor.</span>

scholarly journals Brushless DC Motor Speed Controller for Electric Motorbike

2018 ◽  
Vol 9 (2) ◽  
pp. 859
Author(s):  
Mohd Syakir Adli ◽  
Noor Hazrin Hany Mohamad Hanif ◽  
Siti Fauziah Toha Tohara
Keyword(s):  
Pid Controller ◽  
Dc Motor ◽  
Battery Pack ◽  
Brushless Dc Motor ◽  
Bldc Motor ◽  
Motor Speed ◽  
Brushless Dc ◽  
Speed Controller ◽  
Optimum Speed ◽  
Control Scheme

<p>This paper presents a control scheme for speed control system in brushless dc (BLDC) motor to be utilized for electric motorbike. While conventional motorbikes require engine and fuel, electric motorbikes require DC motor and battery pack in order to be powered up. The limitation with battery pack is that it will need to be recharged after a certain period and distance. As the recharging process is time consuming, a PID controller is designed to maintain the speed of the motor at its optimum state, thus ensuring a longer lasting battery time (until the next charge). The controller is designed to track variations of speed references and stabilizes the output speed accordingly. The simulation results conducted in MATLAB/SIMULINK® shows that the motor, equipped with the PID controller was able to track the reference speed in 7.8x10<sup>-2</sup> milliseconds with no overshoot.  The result shows optimistic possibility that the proposed controller can be used to maintain the speed of the motor at its optimum speed.</p>

scholarly journals Constant Current Models of Brushless DC Motor

2013 ◽  
Vol 3 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Krzysztof Krykowski ◽  
Janusz Hetmańczyk
Keyword(s):  
Current Model ◽  
Dc Motor ◽  
Constant Current ◽  
Brushless Dc Motor ◽  
Bldc Motor ◽  
Modified Model ◽  
Brushless Dc ◽  
Mathematical Equations ◽  
The Impact ◽  
Electronic Commutator

Abstract Two constant current models of Permanent Magnet Brushless Direct Current Motor (PM BLDC) are presented in the paper. In the first part of the paper principle of operation, basic properties and mathematical equations describing PM BLDC models are given. Then, two different constant current models of PM BLDC motor are considered: In the first model, PM BLDC motor is approximated with dc motor; in the second model, modified constant current model is applied with additional block, which is used to take into account the impact of inductance on torque-speed characteristics. In order to verify these models, torque-speed characteristics have been determined and compared for different motor supply voltages. After running a series of simulation and laboratory tests, we have found that this modified model (which makes allowance for the influence of inductance on torque-speed characteristics) ensures obtaining torque-speed characteristics identical to those of the real motor. Therefore, this model may be recommended for those simulation tests which do not consider effects occurring inside the electronic commutator-motor circuit. However, approximation of PM BLDC motor with dc motor is not recommended in computer tests.

scholarly journals Electromagnetic phenomena analysis in brushless DC motor with speed control using PWM method

Open Physics ◽  
2017 ◽  
Vol 15 (1) ◽  
pp. 907-912
Author(s):  
Marek Pawel Ciurys
Keyword(s):  
High Pressure ◽  
Single Phase ◽  
Speed Control ◽  
Dc Motor ◽  
Circuit Model ◽  
Brushless Dc Motor ◽  
Bldc Motor ◽  
Vane Pump ◽  
Brushless Dc

AbstractField-circuit model of a brushless DC motor with speed control using PWM method was developed. Waveforms of electrical and mechanical quantities of the designed motor with a high pressure vane pump built in a rotor of the motor were computed. Analysis of electromagnetic phenomena in the system: single phase AC network – converter - BLDC motor was carried out.

Research and Realization on Sensorless Brushless DC Motor Control System

2014 ◽  
Vol 687-691 ◽  
pp. 183-186 ◽  
Author(s):  
Yu Hong Liang ◽  
Hai Bo Huang ◽  
Deng Liang Cheng ◽  
Jian Ping Lan
Keyword(s):  
Motor Control ◽  
Control System ◽  
Control Algorithm ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Bldc Motor ◽  
Zero Crossing ◽  
Brushless Dc ◽  
Dc Motor Control ◽  
Motor Control System

Brushless DC Motor is a kind of a new motor which commutation signals replaces traditional motor mechanical structure with electronic signals. Square wave brushless DC motor can be divided into sensor motor and sensorless motor. Position sensor will increase system cost, motor size and maintenance difficulty, which bring about limitation and limits to promote its application in all areas. This project designs sensorless BLDC Motor control system with the core of the stm32 micro-controller and uses Back-EMF zero-crossing detection method. In the system designing software control algorithm, drawing schematic diagram of hardware and making PCB board have been completed dependently. The experimental results show that the system can well realize the starting and running of sensorless BLDC Motor control system, and have a good measure of protection.

scholarly journals Design of PV Based DC-DC Converter Fed Brushless DC Motor Drive – A Review

2021 ◽  
pp. 349-354
Author(s):  
Payal Rathod ◽  
R. M. Bhombe ◽  
Yogesh Likhar
Keyword(s):  
Dynamic Condition ◽  
Cost Effective ◽  
Brushless Dc Motor ◽  
Motor Drive ◽  
Bldc Motor ◽  
Brushless Dc ◽  
Pumping System ◽  
Switching Losses ◽  
Water Pumping ◽  
Is Design

This project present BLDC motor driven solar water pumping system which cost effective & economical for propose drive, A zeta convertor is employed in order to extract the maximum power from the SPV array. The proposed MPPT algorithm reduces the starting current of BLDC motor in order to achieve soft starting of BLDC motor. The switching of invertor is achieve by commutation of BLDC motor, thereby eliminating switching losses in invertor .The proposed system is design and modeled such that the performance isn’t affect under dynamic condition. The performance under various operating condition is analyzed & suitability of proposed system is demonstrated using MATLAB/Simulink software.

scholarly journals Performansi Sistem Pengendali Kecepatan Motor BLDC Menggunakan Logika Fuzzy Logic

Jurnal METTEK ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 11
Author(s):  
Wayan Widhiada ◽  
Made Widiyarta ◽  
K.P. Arya Utama
Keyword(s):  
Fuzzy Logic ◽  
Power Supply ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Main Stream ◽  
Bldc Motor ◽  
Motor Speed ◽  
Brushless Dc ◽  
Simulation And Experiment ◽  
Dc Current

Brushless DC motor adalah salah satu jenis motor sinkron yang diberi arus DC yang bersumber dari inverter atau power supply. Motor AC menghasilkan arus AC yang dapat menggerakan motor. Pada dasarnya kecepatan motor dapat di atur menggunakan kontroler yang menghitung seberapa besar keluaran yang harus dihasilkan. Pada umumnya input dari kontroler berupa tuas (naik – turun atau putar) dan tombol untuk input awalnya. Oleh Karena itu dilakukan penelitian untuk mengganti input yang mengatur kecepatan motor BLDC. Kontrol kecepatan motor BLDC berbasis logika fuzzy adalah suatu system kontrol yang mengganti input main stream dari kontroler menjadi sensor beban, dan dimana pembacaanya akan dikontrol oleh logika fuzzy untuk mengatur control kecepatan motor BLDC. Penelitian dilakukan dengan dua cara yaitu simulasi dan eksperimen prototype dengan pemberian beban pada sensor yaitu 10 kg, 20 kg, 30 kg, 40 kg dan 50 kg sebagai inputnya. Hasil dari pengujian dan penghitungan yang didapat pada setiap pembebanan menghasilkan kecepatan yang stabil yaitu rata – rata 0.25 detik dengan kecepatan yang hamper setara dengan referensinya. Error pada kecepatan yang dihasilkan antara simulasi dan prototype sangat kecil yaitu kurang dari 1% pada masing – masing pembebanan. Brushless DC motor is one type of synchronous motor that is given a DC current from the inverter or power supply sourced. It produces an AC current that can drive the motor. Basically the motor speed can be set using a controller to compute the result of output. In general, the input from the controller is like a handle (up – down or twist) and a button for initial input. Therefore the research has changed the input that regulates the speed of the BLDC motor. BLDC motor speed is controlled based on fuzzy logic. Fuzzy logic is a control who help load sensor to replace the mainstream input like handle, and where the reader will be directed by logic to determine the speed of the BLDC motor. The research is carried out in two techniques, called simulation and experiment. The prototype is testing with the load on 10 kg, 20 kg, 30 kg, 40 kg and 50 kg as an input. The results of the tests is obtained at each loading resulted in a stable speed which is an average of 0.25 seconds with a speed that is almost the same as the reference. The error signal of the speed is produced between the simulation and prototype is very small, which is less than 1% in each load.

Sign in / Sign up

Export Citation Format

Share Document