具容錯永磁同步電動機驅動系統的週期性速度控制器及電流估測器研製

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研究生：	Muhammad Ridwan Muhammad Ridwan
論文名稱：	具容錯永磁同步電動機驅動系統的週期性速度控制器及電流估測器研製 Design and Implementation of a Periodic Speed Controller and Current Estimator for a Fault-Tolerant PMSM Drive System
指導教授：	劉添華 Tian-Hua Liu
口試委員:	廖聰明 Chang-Ming Liaw 楊勝明 Sheng-Ming Yang 劉益華 Yi-Hua Liu
學位類別：	碩士 Master
系所名稱：	電資學院 - 電機工程系 Department of Electrical Engineering
論文出版年：	2019
畢業學年度：	107
語文別：	英文
論文頁數：	126
中文關鍵詞：	容錯驅動系統、週期性控制、永磁同步電動機、速度控制、電流估測器
外文關鍵詞：	fault-tolerant drive system, periodic control, PMSM, current estimation, speed control
相關次數：	點閱：455 下載：0
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上一筆

本論文探討週期性速度控制器及滑動模式電流預測器應用於具容錯功能的永磁同步電動機驅動系統，故障的狀態包括變頻器的一個功率開關開路或短路，或霍爾效應電流偵測元件故障。經由使用週期性速度控制器，此驅動系統具有較使用比例積分速度控制器驅動系統更快速的暫態響應及加載響應。詳細的週期性控制器設計及容錯驅動系統，包括:錯誤偵測、診斷、控制，均在論文中討論。
此外，並探討一個滑動模式電流估測器用以估測電動機的定子電流。當霍爾效應檢知器故障時，此估測的定子電流用來取代量測的電流。文中使用32位元，TMS-320F-2808的數位信號處理器來執行容錯方法及週期性控制法則，驗証實測結果與理論分析的正確性。

This thesis proposes a periodic speed controller and a sliding-mode current estimator for fault-tolerant permanent magnet synchronous motor drive systems. The fault-tolerant conditions including one power switch open-circuit, one power switch short-circuit, or one Hall-effect current sensor fault. By using the speed-loop periodic controller, the drive system has better performance, including faster transient responses and better load disturbance responses than a speed-loop PI controller drive system. The detailed design of the periodic controller and the fault-tolerant drive system, including fault detection, diagnosis, and control are included.
In addition, a sliding mode current estimator is investigated to estimate the stator current. The estimated current is used to replace the measured current when a Hall-effect current sensor is faulty. A 32-bit digital signal processor, type TMS-320F-2808, is used to execute the fault-tolerant algorithm and periodic control algorithm. Experimental results show the measured results can validate the correctness of the theoretical analysis.

TABLE OF CONTENTS
.................................................................................................................Page
ABSTRACT........................................................................................................... vi
中文摘要............................................................................................................... vii
NOMENCLATURE............................................................................................... ix
TABLE OF CONTENTS...................................................................................... xii
LIST OF FIGURES .............................................................................................. xv
LIST OF TABLE ............................................................................................... xviii
CHAPTER I INTRODUCTION............................................................................ 1
1.1 Background........................................................................................... 1
1.2 Introduction of Periodic Controller....................................................... 2
1.3 Literature Review ................................................................................. 2
1.4 Contribution.......................................................................................... 4
1.5 Thesis Organization .............................................................................. 4
CHAPTER II PERMANENT MAGNET SYNCHRONOUS MOTOR................ 5
2.1 Introduction........................................................................................... 5
2.2 Structure................................................................................................ 5
2.3 Mathematical Model ............................................................................. 7
2.3.1 Mathematical model in a-b-c axis frame................................... 7
2.3.2 Mathematical model d-q axis frame ........................................ 10
CHAPTER III FAULT-TOLERANT METHOD................................................ 12
3.1 Introduction......................................................................................... 12
3.2 Fault-Tolerant Inverter........................................................................ 13
3.3 Fault-Tolerant Detection..................................................................... 17
3.4 Fault-Tolerant Diagnosis .................................................................... 19
3.5 Fault-Tolerant Control ........................................................................ 22
xiii
CHAPTER IV CONTROLLER DESIGN........................................................... 25
4.1 Introduction......................................................................................... 25
4.2 Current-Loop PI Controller ................................................................ 26
4.2.1 Current-Loop PI Controller Structure...................................... 27
4.2.2 Current-Loop PI Controller Design ......................................... 29
4.3 Speed-Loop PI and Periodic Controllers ............................................ 32
4.3.1 Speed-Loop PI Controller Design............................................ 33
4.3.2 Speed-Loop Periodic Controller Design.................................. 39
CHAPTER V CURRENT ESTIMATOR AND ADAPTIVE THRESHOLD..... 47
5.1 Introduction......................................................................................... 47
5.2 Current Estimator................................................................................ 48
5.3 Adaptive Threshold............................................................................. 51
CHAPTER VI IMPLEMENTATION.................................................................. 56
6.1 Introduction......................................................................................... 56
6.2 Simulation........................................................................................... 57
6.3 Hardware............................................................................................. 59
6.3.1 Permanent Magnet Synchronous Motor .................................. 59
6.3.2 Three-Phase Inverter................................................................ 59
6.3.3 TRIAC ..................................................................................... 61
6.3.4 Current Sensing Circuit ........................................................... 62
6.3.5 DC-Link Current Sensing Circuit ............................................ 63
6.3.6 Overcurrent Protection Circuit................................................. 64
6.3.7 Encoder Circuit ........................................................................ 64
6.3.8 Digital Signal Processor........................................................... 65
6.4 Software Design.................................................................................. 66
6.4.1 Main Program.......................................................................... 67
xiv
6.4.2 Interrupt and Sub-routine Programs ........................................ 68
CHAPTER VII SIMULATION AND EXPERIMENTAL RESULTS ............... 75
7.1 Introduction......................................................................................... 75
7.2 Simulation Results .............................................................................. 76
7.3 Experimental Results .......................................................................... 78
CHAPTER VIII CONCLUSIONS AND FUTURE RESEARCH .................... 101
8.1 Conclusions....................................................................................... 101
8.2 Future Research ................................................................................ 101
REFERENCES.................................................................................................... 102
BIOGRAPHY ..................................................................................................... 108
                                

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全文公開日期 2024/01/21 (校內網路)
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