【摘要】：無刷直流電機(jī)以電子換相方式替換機(jī)械換相方式，因?yàn)槠錁?gòu)造簡(jiǎn)單、沒有勵(lì)磁損耗等特點(diǎn)，在各行各業(yè)廣泛應(yīng)用。為此，本課題選用DSP作為主控芯片，設(shè)計(jì)無刷直流電機(jī)調(diào)速系統(tǒng)，實(shí)現(xiàn)電機(jī)速度控制數(shù)字化。 本文首先論述了無刷直流電機(jī)基本構(gòu)造與工作原理，從而建立數(shù)學(xué)模型，分析研究有位置傳感器的無刷直流電機(jī)控制方案，實(shí)現(xiàn)速度和電流雙閉環(huán)PWM控制調(diào)速。其次，選用TI的TMS320F28335浮點(diǎn)型數(shù)字信號(hào)處理器作為主控器，設(shè)計(jì)無刷直流電機(jī)調(diào)速系統(tǒng)硬件電路整體框圖，主要包括電源模塊設(shè)計(jì)、速度檢測(cè)電路設(shè)計(jì)、電流檢測(cè)電路設(shè)計(jì)、轉(zhuǎn)子位置檢測(cè)電路設(shè)計(jì)、保護(hù)電路設(shè)計(jì)以及功率驅(qū)動(dòng)電路設(shè)計(jì)等。選用CCS3.3作為DSP編程環(huán)境，設(shè)計(jì)無刷直流電機(jī)調(diào)速系統(tǒng)軟件程序整體流程框圖，主要包括速度環(huán)程序設(shè)計(jì)、電流環(huán)程序設(shè)計(jì)、轉(zhuǎn)子位置檢測(cè)與換相程序設(shè)計(jì)、PWM波產(chǎn)生程序設(shè)計(jì)等。然后，，采用經(jīng)典數(shù)字PID控制算法，加入限幅與積分校正，達(dá)到較好的調(diào)速性能。 最后總結(jié)了無刷直流電機(jī)調(diào)速系統(tǒng)測(cè)試與結(jié)果分析，驗(yàn)證了PID控制算法的有效性，實(shí)現(xiàn)了無刷直流電機(jī)速度控制數(shù)字化，并且對(duì)整體設(shè)計(jì)進(jìn)行總結(jié)，對(duì)后續(xù)工作給出展望。
[Abstract]:Brushless DC motor (BLDCM) is widely used in various industries because of its simple structure, no excitation loss and so on. In this paper, DSP is chosen as the main control chip to design the speed control system of brushless DC motor, and realize the digitization of motor speed control. In this paper, the basic structure and working principle of brushless DC motor are discussed firstly, and then the mathematical model is established. The control scheme of brushless DC motor with position sensor is analyzed and studied, and the speed and current double closed loop PWM control speed regulation is realized. Secondly, using TMS320F28335 floating-point digital signal processor of TI as the main controller, the hardware block diagram of brushless DC motor speed control system is designed, which mainly includes the design of power module, the design of speed detection circuit, the design of current detection circuit, and the design of hardware circuit of brushless DC motor speed control system. Rotor position detection circuit design, protection circuit design and power drive circuit design. CCS3.3 is chosen as the DSP programming environment to design the whole flow chart of the software program of brushless DC motor speed regulation system, which mainly includes speed loop program design, current loop program design, rotor position detection and commutation program design. PWM wave generation program design and so on. Then, the classical digital PID control algorithm is adopted, and the limiting and integral correction are added to achieve better speed regulation performance. Finally, the test and result analysis of brushless DC motor speed control system are summarized, the validity of PID control algorithm is verified, the speed control digitization of brushless DC motor is realized, and the overall design is summarized, and the future work is prospected.
【學(xué)位授予單位】：北京印刷學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM33

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 李永紅;陳家斌;趙圣飛;岳鳳英;;Position detection of BLDC rotor based on adaptive wavelet neural network[J];Journal of Measurement Science and Instrumentation;2012年01期

本文編號(hào)：2456038