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研究生: Hari Maghfiroh
Hari - Maghfiroh
論文名稱: Modeling and Speed Control of a Single Train of Taipei Mass Rapid Transit System
Modeling and Speed Control of a Single Train of Taipei Mass Rapid Transit System
指導教授: 連國龍
Kuo-Lung Lian
口試委員: 柯博仁
Bo-Ren Ke
陳南鳴
Nan-Ming Chen
曾乙申
Yi-Shen Zeng
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: 2014
畢業學年度: 102
語文別: 英文
論文頁數: 80
中文關鍵詞: 大眾捷運系統牽引系統可變電壓可變頻控制類神經網路PID控制器
外文關鍵詞: Mass Rapid Transit (MRT), traction system, VVVF control, neural network, PID
相關次數: 點閱:339下載:7
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本論文使用Matlab/Simulink建置台北捷運系統模型,本模型將捷運系統分成三個部份:牽引系統、第三軌電壓和負載。牽引系統包含感應電動機與可變電壓可變頻控制、正弦脈波寬度調變和三相全橋變頻器。
負載部份包含了啟動電抗、運轉電抗和磁軌的梯度與旋度電抗。有四種操作模式用於速度調節,分別為加速、巡航、滑行、煞車。速度控制利用PID控制器建立於倒傳遞類神經網路中,利用類神精網路將PID控制器參數之調整自動化,並利用其線上學習的特性,使控制器能增強其適應性。
本論文中討論兩種情境,分別為梯度改變與負載改變,於情境中可得知控制器可穩定控制,當加速度與急動分別限制於 ±1 m/s2與 ±1 m/s3 以及急動限制於 ±0.8 m/s3 等情形。另外,本論文也示範再生儲能式煞車模式與滑行模式可成功地減少能源的耗損。


In this thesis, the actual train of Taipei Rapid Transit Systems (TRTS) is modeled with MATLAB/ Simulink. It consists of three main parts which are traction system, third rail voltage and the load. The traction system consists of induction motor with variable voltage variable frequency (VVVF) control, switching modes (SPWM, Quasi Six-step, and Sis Step), and three phase bridge inverter. The load consists of starting resistance, the running resistance during train movement, and gradient and curve resistances from the track profile. Four operation modes are used in the speed regulation which are acceleration, cruising, coasting, and braking.
Back Propagation Neural Network (BPNN) based PID is used as speed controller. This algorithm is the combination of Neural Network and PID. This technique makes PID tuning automatically since the tuning is done by the Neural Network. On-line learning capability of neural network can make the controller more adaptable.
Two case studies are presented to prove that the controller can work well regardless the gradient changes or load variations. The acceleration and jerk are limited within ± 1 m/s2 and ± 1 m/s3, respectively. Jerk limit ± 0.8 m/s3 which according to the TRTS regulation also implemented. Regenerative braking and coasting mode are successfully implemented to reduce the energy consumption.

ABSTRACT i 摘要 ii ACKNOWLEDGEMENTS iii CONTENTS iv LIST OF FIGURES vii LIST OF TABLES ix CHAPTER 1 INTRODUCTION 1 1.1 Background 1 1.2 Literature Review 2 1.3 Scope 3 1.4 Chapter Overview 3 CHAPTER 2 TAIPEI RAPID TRANSIT SYSTEM 5 2.1 Induction Motor 6 2.2 Scalar Control 7 2.3 Three-Phase Bridge Inverter 9 2.4 Switching Method 10 2.4.1 Sinusoidal PWM (SPWM) 11 2.4.2 Selective Harmonic Elimination PWM (SHEPWM) 12 2.4.3 Six Step Modulation 13 2.5 Third Rail 14 2.6 Train Resistance 15 2.6.1 Starting Resistance 16 2.6.2 Running Resistance 16 2.6.3 Gradient Resistance 17 2.6.4 Curve Resistance 18 2.7 Operation Mode 19 CHAPTER 3 CONTROLLER DESIGN 21 3.1 PID Controller 21 3.2 Neural Network 22 3.2.1 Activation Function 24 3.2.2 Back Propagation Learning 25 3.3 Back Propagation Neural Network (BPNN) based PID 27 CHAPTER 4 TRAIN SYSTEM MODELLING 32 4.1 System Data 32 4.2 Traction System 32 4.2.1 Induction Motor Model 32 4.2.2 Scalar Control Model 34 4.2.3 Inverter Model 35 4.2.4 Switching Model 36 4.3 Third Rail Model 38 4.4 Load Model 40 4.5 Train System Model 41 CHAPTER 5 CASE STUDY 43 5.1 System Efficiency 43 5.2 Case 1 44 5.2.1 Without Coasting Mode 47 5.2.2 With Coasting Mode 49 5.2.3 TRTS Real Conditions 53 5.3 Case 2 54 5.3.1 Without Coasting Mode 56 5.3.2 With Coasting Mode 57 CHAPTER 6 CONCLUSIONS 63 6.1 Conclusions 63 6.2 Future Works 63 REFERENCES 64

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