(For USM Staff/Student Only)

EngLib USM > Ω School of Electrical & Electronic Engineering >

Design of speed control of bldc motor based on microcontroller

Design of speed control of bldc motor based on microcontroller / Tiew Jih Yong
Baru-baru ini, motor BLDC bertambah popular kerana kelebihannya dari segi kecekapan dan ciri-ciri kelajuan dengan tork. Namun, motor BLDC telah pun menghadapi banyak rintangan seperti kos yang tinggi, bunyi yang bising, getaran dan riak tork sebelum mencapai populariti hari ini. Penyelidikan yang berterusan telah dilaksanakan untuk mengatasi semua masalah yang telah disebutkan. Oleh itu, dalam projek ini, motor BLDC telah dipilih kerana kelebihannya jika dibandingkan dengan motor lain. Untuk membolehkan motor BLDC berfungsi, teknik pensuisan yang sesuai mesti digunakan untuk menjana denyut yang diperlukan untuk memandu pemandu MOSFET. Dalam projek ini, teknik pensuisan yang digunakan ialah PWM yang dihasilkan oleh pengawal mikro dsPIC30F2010 yang bergantung kepada input Hall sensor dari motor. Kelajuan motor BLDC boleh dikawal dengan mengubahkan kitaran tugasan PWM yang dihasilkan. Kitaran tugasan akan menentukan purata bekalan voltan yang dibekalkan untuk motor dan justerunya kelajuan motor kerana kelajuan motor bergantung kepada purata bekalan voltan. Akibatnya, pengawal mikro yang digunakan telah berjaya menghasilkan PWM yang diperlukan untuk mengendalikan motor. _______________________________________________________________________________________________________ Recently, the brushless DC (BLDC) motors are gaining popular due to its efficiency and speed/torque characteristic. However, BLDC motors have encountered many hurdles to come to its present stage in terms of cost, noise, vibration and torque ripples. Continuous researches have been made to overcome these problems. Thus, in this project, BLDC motor is chosen due to its many advantages if compared to other motors. In order to run the BLDC motor, an appropriate switching technique must be used to generate the required pulses to drive the MOSFET driver. In this project, the switching technique used is pulse width modulation (PWM) which is produced by the dsPIC30F2010 microcontroller depending on the Hall sensor input from the motor. The speed of BLDC motor can be controlled by varying the duty cycle of PWM produced. The duty cycle will determine the average voltage supply to the motor and thus the speed of the motor as the speed depends on the average voltage supply. As a result, the microcontroller being used has successfully produced the PWM needed to operate the motor.
Contributor(s):
Tiew Jih Yong - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875005079
Language:
English
Subject Keywords:
(BLDC); efficiency; MOSFET
First presented to the public:
6/1/2013
Original Publication Date:
11/18/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Materials & Mineral Resources Engineering
Citation:
Extents:
Number of Pages - 87
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-12-02 17:18:37.318
Submitter:
Mohd Jasnizam Mohd Salleh

All Versions

Thumbnail Name Version Created Date
Design of speed control of bldc motor based on microcontroller1 2019-12-02 17:18:37.318
Engineering Library USM @ 2017