臺灣博碩士論文加值系統

本文旨在建立一套線性馬達驅動及定位控制系統。前級採用單相全橋式昇壓型AC/DC轉換器，以可變直流電壓供變頻器使用。而變頻器驅動線性無刷直流馬達，以完成運動控制。AC/DC轉換器之線電流低失真/高功率因數由開關操作於切換模式下所獲得。此轉換器在直流鏈電壓降低或馬達減速時，具有可雙向功率傳輸之能力。運動控制器是由電流、速度及位置迴圈所組成，其參數是透過根軌跡法則所決定。本文提出之系統數學模式，已由Matlab/Simulink建立與模擬，以評估系統之效能。最後，以數位信號處理器TMS320LF2407A做為運動系統之控制器核心，控制器提供脈寬調變訊號以做為前後級開關切換與運動命令及回授(位置)訊號控制之用。經由模擬與實驗之結果證實所提出之系統架構確具可行性。

The purpose of this thesis is to build a position control system of a linear motor driver. The front stage employs a single-phase full-bridge boost type AC/DC converter, which provides the inverter stage with variable DC voltage. Then, a linear brushless DC motor is driven by the inverter to accomplish the motion control. The AC/DC converter conducts switching-mode operations, so that the low-distortion/high- power-factor line current is obtained. Moreover, this converter provides bidirectional capability when the dc link voltage needs to reduce or the motor decelerates. The motion controller consists of current, velocity, and position loop with parameters determined through root-locus method. For evaluating performance, the mathematical model of the proposed system has been established and simulated by Matlab/Simulink. Finally, a digital signal processor, TMS320LF2407A, is used to implement the controller of motion system. This controller supplies pulse-width modulation signals to the switches of the two power stages, and handles the motion command and feedback (position) signal. Both the simulation and experimental results are obtained to show the validity of the proposed system.

中文摘要..................................................i
英文摘要..................................................ii
誌謝.....................................................iii
目錄......................................................iv
符號索引................................................viii
圖目錄...................................................xii
表目錄.................................................xviii
第一章 緒論..............................................1
1.1 研究動機.........................................1
1.2 研究方法與系統描述............................... 2
1.3 內容大綱......................................... 4
第二章 單相昇壓型交-直流轉換器...........................6
2.1 前言............................................. 6
2.2 單相昇壓型交-直流轉換器之介紹.....................6
2.2.1 單開關標準式交-直流轉換器...................6
2.2.2 雙開關標準式交-直流轉換器...................7
2.2.3 雙開關半橋式交-直流轉換器...................8
2.2.4 四開關標準式交-直流轉換器...................9
2.3 單相全橋式昇壓型交-直流轉換器之控制方法..........11
2.3.1 電流磁滯控制法.............................11
2.3.2 正弦脈寬調變法.............................13
2.3.3 電流預測控制法.............................14
2.4 單相全橋式昇壓型交-直流轉換器之數學模式..........16
第三章 線性直流無刷馬達.................................20
3.1 前言............................................20
3.2 線性馬達之簡介..................................20
3.2.1 線性馬達之基本構造.........................20
3.2.2 線性馬達之分類.............................22
3.3 線性直流無刷馬達之數學模式......................24
3.3.1 電壓方程式.................................24
3.3.2 電磁推力方程式.............................28
3.4 線性直流無刷馬達之控制器設計....................31
3.4.1 線性直流無刷馬達之電流控制器設計...........33
3.4.2 線性直流無刷馬達之速度控制器設計...........38
3.4.3 線性直流無刷馬達之位置控制器設計...........43
第四章 系統整合數學模式.................................48
4.1 推導整合系統之狀態方程式........................48
4.2 系統調變方法....................................55
4.3 系統傳送功率之分析..............................56
第五章 實體製作..........................................62
5.1 前言............................................62
5.2 硬體架構........................................62
5.2.1 數位信號處理器模組之介紹...................65
5.2.2 電壓回授電路之介紹.........................69
5.2.3 電流回授電路之介紹.........................71
5.2.4 差動電路之介紹.............................72
5.2.5 馬達絕對位置偵測電路之介紹.................75
5.2.6 功率電晶體驅動電路之介紹...................76
5.3 軟體規劃........................................77
5.3.1 整數運算之實現.............................77
5.3.2 類比/數位轉換比之設計.......................79
5.3.3 程式流程之介紹.............................80
第六章 模擬與實作結果....................................88
6.1 前言............................................88
6.2 交-直流轉換器模擬與實作結果.....................88
6.3 線性馬達驅動器模擬與實作結果....................94
6.4 前後級整合系統之模擬與實作結果.................107
第七章 結論與未來研究方向...............................114
7.1 結論...........................................114
7.2 未來研究方向...................................114
參考文獻................................................116
附錄A..................................................120
附錄B..................................................123
作者簡介................................................124

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