【正文】 respectively. Describe the process of fuzzy inference of fuzzy control algorithm in detail in the brushless DC motor control system simulation technology， fuzzy PID controller design procedure and the use of objects. Brushless DC machines have the characteristics of multiple variables ， timevarying， nonlinear， strong coupling. Propose two kinds of scheme to improve the performance of brushless DC motor control. One is based on fuzzy adaptive PID control， and the other is based on particle swarm optimization (PSO) of the adaptive fuzzy PID control. Elaborate on swarm intelligence optimization algorithm， the algorithm is simple and easy to implement， in the realization of plex solution space to find the optimal solution benefits. Expound the principles of using PSO algorithm to optimize the fuzzy controller 基于 DSP 無刷 直流電機控制系統(tǒng)的設(shè)計與仿真 IV design. The control system can automatically adjust the fuzzy controller online quantization factor eK 、 ecK and scale Factor uK . Then adjust the three parameters( pK 、 iK 、 dK ) of PID to achieve better system quickly and dynamic performance without overshoot. Build brushless DC motor function modules by module in MATLAB/SIMULINK environment. There are mainly brushless DC motor module, PWM wave adjustment module， writing S function of PSO algorithm， fuzzy PID control module and other ponents. Link functional modules to build a brushless DC motor system simulation model. Simulation results prove the effectiveness of the PSObased parameter selftuning fuzzy PID control， and verify the method is better than traditional PID control and adaptive fuzzy PID the former control algorithm. Also the new method has advantages， such as faster response， smaller overshoot，stability and strong tracking performance. This will not only verify the reasonableness of the theory of the control algorithm， also can shorten the development cycle and save cost. Provide a good development methodology for the development of brushless DC motor control algorithms. Key Words： Brushless DC motor, Fuzzy PID controller, SP control system design, PSO algorithm 蘭州交通大學(xué)碩士學(xué)位論文 V 目 錄 摘 要 ..................................................................................................................................... I Abstract .....................................................................................................................................III 1 緒論 ......................................................................................................................................... 1 論文的背景及意義 ..................................................................................................... 8 課題研究的背景 ............................................................................................... 8 電機的發(fā) 展及其意義 ....................................................................................... 8 MATLAB 仿真的意義 ..................................................................................... 2 國內(nèi)外研究現(xiàn)狀及分析 ............................................................................................. 2 論文研究所做的主要工作 .......................................................................................... 4 2 永磁無刷直流電機工作過程分析 ........................................................................................ 6 永磁無刷直流電機的基本結(jié)構(gòu) ................................................................................. 6 永磁無刷直流電機的工作原理 ................................................................................. 7 永磁無刷直流電機數(shù)學(xué)模型的確定 ......................................................................... 9 永磁無刷直流電機控制方案選擇與確定 ............................................................... 12 調(diào)速系統(tǒng)的分類 ............................................................................................ 12 控制算法的確定 ............................................................................................ 13 主要控制模塊的比較選擇 ............................................................................ 13 小結(jié) ............................................................................................................................ 14 3 基于 DSP 的直流電機系統(tǒng)控制方案設(shè)計 ......................................................................... 15 控制系統(tǒng)總體結(jié)構(gòu) ................................................................................................... 15 硬件總體構(gòu)成 ................................................................................................ 16 軟件總體構(gòu)成 ................................................................................................ 16 轉(zhuǎn)子位置檢測方案的選擇 ....................................................................................... 17 起動方法的選擇 ....................................................................................................... 18 PDM 調(diào)制方法的選擇 .............................................................................................. 19 相電壓控制 PWM ......................................................................................... 19 硬件調(diào)制法 .................................................................................................... 20 軟件生成法 .................................................................................................... 20 梯形波與三角波比較法 ................................................................................ 20 小結(jié) ............................................................................................................................ 21 4 無刷直流電機控制系統(tǒng)的硬件 及軟件設(shè)計 ...................................................................... 22 基于 DSP 無刷 直流電機控制系統(tǒng)的設(shè)計與仿真 VI 概述 ........................................................................................................................... 22 基于 DSP 無刷直流控制系統(tǒng)總體硬件框圖 .......................................................... 22 TMS320F2812 DSP 最小系統(tǒng)及其外設(shè)電路的設(shè)計 ..................