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研究生：	李昱亨 Lee, Yu-Heng
論文名稱：	模糊控制導入切換式磁阻電機驅動與再生制動設計 Design of Fuzzy Control on Motor Drive and Regenerative Braking for Switched Reluctance Machine
指導教授：	張簡樂仁 Chang-Chien, Le-Ren
學位類別：	碩士 Master
系所名稱：	電機資訊學院 - 電機工程學系 Department of Electrical Engineering
論文出版年：	2018
畢業學年度：	106
語文別：	英文
論文頁數：	116
中文關鍵詞：	切換式磁阻馬達、轉矩漣波抑制、模糊控制、再生制動
外文關鍵詞：	switched reluctance motor, torque ripple reduction, fuzzy logic, regenerative braking
相關次數：	點閱：64 下載：0
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本文旨在探討切換式磁阻馬達轉矩漣波抑制以及再生制動策略之改善，並提升馬達之操作表現。接著列舉常見的轉矩漣波抑制方法，包含轉矩分配策略(Torque sharing function)、直接轉矩控制(Direct torque control)以及直接即時轉矩控制(Direct instantaneous torque control)。基於直接轉矩控制的原理，本文導入模糊控制定頻調變器進一步抑制轉矩漣波及維持定頻操作。以一具額定3kW之切換式磁阻馬達以及非對稱半橋驅動器驗證本文提出的方法對抑制轉矩漣波之有效性。另外，簡短探討再生制動回收之基本原理，並探討電流截波控制方式。本文導入模糊控制於電流控制器中，藉以提升在高電流運作中(飽和區)馬達的淨回收能量，並減少在混合截波控制中電流突波的發生。

The theme of this thesis is to improve the torque ripple suppression and regenerative braking of the SRM. Several torque ripple reduction methods are surveyed including torque sharing function (TSF), direct torque control (DTC) and direct instantaneous control (DITC). Based on direct torque control (DTC), this thesis introduces constant frequency modulator with fuzzy logic, to further reduce torque ripple and maintain fixed operating frequency. A 3kW SRM and an asymmetric half bridge converter are used to verify the effectiveness of the proposed strategy. Besides, this thesis also addresses regenerative braking mode of the SRM by current hybrid chopping. Fuzzy logic is applied to the current controller to suppress current spikes when the SRM operates in high current condition (saturated region).

摘要	                                                    I
Abstract	                                           II
誌謝	                                                  III
Contents	                                           IV
List of Tables	                                          VII
List of Figures	                                         VIII
Chapter 1	Introduction	                            1
1 Background	                                            1
2 Literature Reviews	                                    2
3 Motivation	                                            3
4 Thesis Organization	                                    3
Chapter 2	Essential Knowledge of Switched Reluctance Motors	                                                    5
1 Configuration of Switched Reluctance Motors	            5
1.1 Decision of phase numbers	                            5
1.2 Decision of pole numbers	                            7
1.3 Operating principles of switched reluctance motors	                                                    9
2 Mathematical Description of the Switched Reluctance Motor	                                                   11
2.1 Magnetization curve	                           11
2.2 Energy conversion loop	                           14
2.3 Equivalent circuit of switched reluctance motors	   20
Chapter 3	Torque Ripple Minimization Approaches	   25
1 Converter Topology and Dynamic Operation	           25
2 Influence Factors of Torque Ripple	                   28
2.1 Current controller	                           28
2.2 Commutation angle	                                   29
3 Torque Sharing Function (TSF)	                   31
4 Direct Torque Control (DTC)	                           34
5 Direct Instantaneous Torque Control (DITC)	           40
6 Options for Improvement among the Control Strategies	                                           44
Chapter 4	Refinement of Direct Torque Control	   45
1 Constant Frequency Modulator	                   45
1.1 Structure of constant frequency modulator	           45
1.2 Fuzzy logic controller	                           47
1.3 Constant frequency modulator with fuzzy logic	   54
2 Comparisons and Discussion among Control Strategies	   62
Chapter 5	Control of Switched Reluctance Motors in Regenerative Braking	                                   65
1 Energy Calculation in Regenerative Braking	           65
1.1 Basic concept of regenerative braking mode	   65
1.2 Energy conversion and energy flow	                   66
1.3 Structure of measurement on real circuit	           69
2 Strategies of Regenerative Braking	                   71
2.1 Hybrid chopping	                                   71
2.2 Increase of net recycling energy	                   75
2.3 Fuzzy logic approach	                           76
Chapter 6	Simulation and Experimental Results	   84
1 Simulation Environment	                           84
1.1 Motoring mode	                                   84
1.2 Regenerative braking mode	                           86
2 Simulation results	                                   86
3 Experiment Setup	                                   88
3.1 Experiment platform-torque meter	                   89
3.2 Experiment platform-motor	                           91
3.3 Experiment platform-driver	                   93
4 Experiment Results	                                   97
4.1 Fuzzy DTC	                                           99
Chapter 7	Conclusions and Future Works	          105
1 Conclusions	                                          105
2 Future Works	                                  105
Reference	                                          107
Appendix A  Basic Concept of Fuzzy Logic	          112

                                    

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校內：2023-08-17公開
校外：2023-08-17公開

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