Design of Brushless Direct Current Motor Control System Based on DSP

2018 International Conference of Green Buildings and Environmental Management

土木建筑工程;生态环境科学

Tian, Danlan^1 ; Huang, Zhigong^1

School of Electronic Engineering, Guangxi Normal University, Guilin, Guangxi

541004, China^1

关键词: Brushless direct current motor;    Design of hardwares;    Dual-mode converters;    Electrical vehicles;    Energy and environment;    Environment protection;    High energy efficiency;    Overlapping commutations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/186/5/012048/pdf
DOI  :  10.1088/1755-1315/186/5/012048

来源: IOP

【 摘 要 】

As the energy and environment crises become more and more intense, people are becoming more and more conscious of environment protection and energy conservation. Electrical vehicles are gradually being accepted and becoming the development trend for vehicles, which are characterized by free pollution, low noise, high energy efficiency and simple structure compared with traditional internal combustion engine automobile vehicles. In selecting the driving motor of electric vehicle, the brushless DC motor is favored by many auto dealers with its advanced features. As a result, based on motor's mathematical model and controlling theory, this paper started from the basic structure and working mechanism of brushless DC motor, to build the simulation model based on Matlab/Simulink platform control system, which mainly includes speed and current regulation module, logic commutation module, dual-mode converter module, motor module, overlapping commutation module, and three-phase full-bridge inverse module. Then, the simulation results are obtained to provide references for the subsequent design of hardware circuit and software programs. Besides, the overall scheme of control system is determined by taking performance indexes into consideration, and the circuit design for the system hardware based on DSP2812 is completed, which mainly includes central processing unit, main power circuit, driving circuit, detection circuit, dual-mode switching circuit, display circuit, speed adjustment circuit, power supply circuit and reset circuit, of which the working principle and functions are presented in this study.