本論文提出先進的功率因數修正電路無感測無刷直流電機的驅動器，首先由永磁式同步電機和無刷直流電機的比較揭開序幕，接下來循序漸進討論單相無刷直流風扇馬達與保護電路，採用霍爾感應器控制，及無感測器啟動策略，深入開發無感測三相無刷直流風扇電機的電流回饋與驅動程式，此架構包括速度控制策略和減振與三相無刷直流電機的數學模型，以模擬和實驗結果去總結與驗證理論及實務。
第二，論及再生和持續能源的理論，無刷直流電機的控制和應用包括獨立風力發電機，涵蓋各種型號，以及能源管理和儲存系統的設計。
對於重要的功率因數修正定理，依序討論開關電源、升壓和降壓轉換器到完整的功率因數修正控制電路、轉移函數與方程式。之後本論文主軸功率因數修正應用和控制，包括雙升壓功率因數修正電路、單級高功因降壓式LED驅動電路設計與分流式半主動功率因數修正永磁式同步電機驅動器，巧妙地整合功因修正與電機控制這兩個研究領域，顯著的達到高功因、精確的控制，和廣泛的應用性能 之的目標。
最後，軟體模擬與實驗結果驗證了理論的假設和前述方法的預期目標相符合，此外亦提出了創新性的多執行緒的人機介面執行電機的遙控。

This dissertation proposed an advanced power factor correction circuit for sensor-less brush-less dc motor driver. At first, the comparison of permanent magnet synchronous motor and BLDCM is unveiled. Subsequently, a single phase BLDC fan motor with protection circuits incorporates Hall sensor control, sensor-less startup tactics, and several control strategies are step-by-step discussed. Furthermore, a sensor-less driver with current feedback for three-phase BLDC fan motor is developed, the scheme includes speed control strategy and vibration reduction, together with mathematical models of the three-phase BLDCM, summarize and validate the theories as well as practices with simulations and experiments.
Secondly, renewable and sustainable energy theories are referred, the control and applications of BLDCM including stand-alone wind turbine generator, which covers various models, along with energy management and storage systems are designed.
In regard to the crucial theorem, power factor correction, discusses sequentially from switch mode power supply, Boost, and Buck converters to the complete PFC control circuit, their transfer functions, and equations. Afterwards, the pivotal part of this dissertation, the applications and control methods of PFC, encompass dual-Boost converter to raise PF, single-stage Buck converter PFC for light emitting diode driver circuits, and shunt-based semi-active PFC for PMSM driver which skillfully integrated the two researching categories, PFC and motor control, significantly attained the goals of high PF, accurate control, and wide applications.
Finally, the theoretical assumption and the expected objectives of these aforesaid approaches were verified and fulfilled with software simulations and experimental results. The innovative multithreaded human machine interface for motor remote control was also proposed.

Table of Contents
Acknowledgement....….………………………………………………….i
Chinese abstract...………………………………………………………..ii
Abstract…..……………………………………………………………...iii
Table of Contents..…..………………………………….………………..iv
List of Figures....……………………….……………………………….vii
List of Tables..……………….…………………………………………xiii
List of Acronyms and Abbreviations…………………..………….……xiv
Chapter 1 Introduction 1
1.1Background…………………………………………….......................................1
1.2 Motivation and contribution…………………………………………………….3
1.3The organization of this dissertation…………………………………………….5
Chapter 2 Brushless dc motor 6
2.1 Introduction………………………………………………………………………………………………….. 6
2.2 Single phase brushless dc fan motor with protection circuits…………………..7
2.2.1 Mathematical model of BLDC motor 7
2.2.2 Speed estimated by using hall-sensor method 9
2.2.3 Speed estimated with sensor-less mode 11
2.2.4 Analysis of speed control strategies 18
2.2.5 Speed control with sensor-less mode 23
2.2.6 Experimental results of single phase BLDC fan motor 27
2.3 Three-phase sensor-less bldcm with current feedback.……………..…………30
2.3.1 The analysis and design of sensor-less control 30
2.3.2 Design of start-up signal control circuit 37
2.3.3 The speed control strategies 41
2.3.4 Experimental results 44
Chapter 3 The application of BLDCM 49
3.1 Introduction...……………………………………………………………….....49
3.2 The applications of BLDCM in WTG 49
3.2.1 The theories of wind turbine generator 50
3.3 Control of a synchronous generator for stand-alone WTG 56
3.3.1 The framework of stand-alone wind power system 57
3.3.2 The energy management system 60
3.3.3The mathematical modeling of excitation synchronous generator 65
3.3.4Three-phase excitation synchronous generator magnetic field control 67
3.3.5 Simulation and experimental results 68
Chapter 4. Power factor correction 75
4.1 Introduction...…………………………………………...………………………..75
4.1.1 Switch mode power supplies 75
4.2 Definition and principle of power factor 77
4.2.1 Types and conduction modes of PFC 78
4.3 The Boost converter 80
4.3.1 Mathematical model of Boost converter 81
4.3.2 Mathematical model of PFC 82
Chapter 5 The application and control methods of PFC 85
5.1 Control of a robust dual Boost PFC 85
5.1.1 Design of robust current inner-loop controller 85
5.1.2 Analysis and design of robust dual Boost PFC circuit 89
5.2 Single-stage Buck converter PFC for LED driver circuits 94
5.2.1 Converter analysis and modeling 94
5.2.2 The voltage follower control and the nonlinear carrier control 97
5.3 Shunt semi-active PFCcircuit for PMSM driver 101
5.3.1 Theories of shunt semi-active PFC circuit 102
5.3.2 The framework of experiment and software program 105
5.3.3 The analyses and discussion of experimental results 110
Chapter 6 Conclusion and Discussion 114
6.1 Future works 116
References 117

 

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