系統識別號 | U0002-0408201501584200 |
---|---|
DOI | 10.6846/TKU.2015.00115 |
論文名稱(中文) | 模糊控制餘熱回收系統採用熱電發生器 |
論文名稱(英文) | Fuzzy Control of a Waste Heat Recycling System using Thermoelectric Generators |
第三語言論文名稱 | |
校院名稱 | 淡江大學 |
系所名稱(中文) | 電機工程學系碩士班 |
系所名稱(英文) | Department of Electrical and Computer Engineering |
外國學位學校名稱 | |
外國學位學院名稱 | |
外國學位研究所名稱 | |
學年度 | 103 |
學期 | 2 |
出版年 | 104 |
研究生(中文) | 蘇啟源 |
研究生(英文) | Chi-Yuan Su |
學號 | 602460239 |
學位類別 | 碩士 |
語言別 | 英文 |
第二語言別 | |
口試日期 | 2015-07-06 |
論文頁數 | 37頁 |
口試委員 |
指導教授
-
劉寅春(pliu@mail.tku.edu.tw)
委員 - 邱謙松 委員 - 江東昇 |
關鍵字(中) |
狀態空間平均法(SSA) 熱電發生器 模糊控制器 直流-直流Cuk轉換器 |
關鍵字(英) |
State-Space Averaging (SSA) TEG Fuzzy Cuk |
第三語言關鍵字 | |
學科別分類 | |
中文摘要 |
本文的方向是使用再生能源。本文提出用熱電發生器(TEGs)當作電源然後搭配模糊控制和直流-直流Cuk轉換器建立一個完整的餘熱回收系統。我們發現在工廠攝氏150-300度之間的典型的廢熱是大量並且值得我們去探討。另外,TEG不能普遍的主要原因是輸出為低電壓,和輸出難以穩定。 因此,我們提出方法來解決TEG的輸出電壓,透過串聯TEGs產生15伏。而我們介紹一些方法來提高單一一顆TEG效率。串聯後所產生的電壓,然後輸入到一個直流-直流Cuk變換器產生一個電壓輸出。我們透過狀態空間平均法得到Cuk變換器動態方程式,這方便我們在Matlab裡面模擬。我們在這裡使用模糊控制器以穩定的電壓輸出。控制器模糊規則如下:如果誤差為e則佔空比(duty ratio) 是d。在本文中,我們電腦中模擬,並實現了系統。 |
英文摘要 |
Direction of the paper is the use of renewable energy. This paper proposes fuzzy control of a waste heat recycling system using thermoelectric generators (TEGs) and a DC-DC Cuk converter. The overall system structure includes TEG, Cuk converter, and Fuzzy control. We found that between 150-300 degrees Celsius waste heat from the factory is a lot of typical waste heat and worth to discussion. In addition, the common specification produces low voltage, this is the main reason why TEG can’t be widespread, and output of TEG is hard to be stable. Therefore, we propose ways to solve the TEG output voltage, first series-connect TEGs to generate 15 volts. And we introduce some of the methods to improve efficiency of TEG. The generated voltage is then fed to a DC-DC Cuk converter which in turn generates a stable voltage output regardless of load conditions. We derive the DC-DC Cuk converter dynamical equations from state-space averaging method. We here use a fuzzy controller to stabilize the voltage output. The controller fuzzy rule is shown as follows: If the error is e, then the duty ratio’s value is d. In this paper, we try to simulation with computer and to realize it at last. |
第三語言摘要 | |
論文目次 |
Contents Acknowledgement I Abstract in Chinese II Abstract in English III Contents IV List of Figures IX 1 Introduction 1 1.1 Research Background 1 1.2 Research Purposes 2 1.3 Problem Formulation and Motivations 4 1.4 Organization of Thesis 4 2 TEG 6 2.1 TEG Description 6 2.2 Thermoelectric generator(TEG) structure 7 2.3 Seebeck effect 8 2.4 Peltier effect 8 2.5 Thermoelectric merit value (ZT) 9 2.6 Improve the ZT value 10 2.7 Radiator 10 3 DC-DC Cuk Converter Mathematical Model 11 3.1 DC-DC Cuk Converter Structure 12 3.2 Mathematical Models 14 3.2.1 DC-DC Cuk Converter Maths models 14 3.3 Cuk converter of Duty 16 4 Fuzzy controller 18 4.1 Fuzzy controller with Cuk converter in Matlab 19 5 Numerical Simulations 21 5.1 TEG Model 21 5.2 TEG Model in Matlab 24 5.3 DC-DC Cuk Converter Simulations and Results 25 5.3.1 Example 1 (Reference voltage variation test) 25 5.3.2 Example 2 (Reference voltage variation test) 26 6 Experimental Results 30 6.1 Experiment Environment 30 6.2 Experiment Implement 30 7 Conclusions 35 References 36 List of Figures 1.1 factory waste heat, reference Taiwan ITRI 2 1.2 percentage of industrial waste, reference Taiwan ITRI . . . . . . . . . . 3 1.3 system structure 4 2.1 TEG structure 7 2.2 TEG structure 8 3.1 System structure of DC-DC Cuk Converter 11 3.2 Circuit structure of switch is ON 12 3.3 Circuit structure of switch is OFF 13 3.4 Circuit structure of switch is ON 14 3.5 Circuit structure of switch is OFF 15 3.6 25 Percentage of total duty 17 4.1 error of fuzzy input 19 4.2 duty of fuzzy output 19 4.3 Fuzzy controller control Cuk converter in Matlab 20 5.1 TEM 22 5.2 TEG Model in Matlab 24 5.3 TEGs Model in Matlab 24 5.4 Buck type, X-axis is time, Y-axis is volts 26 5.5 Buck type, X-axis is time, Y-axis is volts 27 5.6 Buck type, X-axis is time, Y-axis is volts 27 5.7 Boost type, X-axis is time, Y-axis is volts 28 5.8 Boost type, X-axis is time, Y-axis is volts 28 5.9 Boost type, X-axis is time, Y-axis is volts 29 6.1 system structure 31 6.2 DSP card 31 6.3 DSP I/O box 31 6.4 TDS 32 6.5 Power supply 32 6.6 TEG and TEC 33 6.7 Boost type, 29V, X-axis is time, Y-axis is volts 33 6.8 Buck type, 9V, X-axis is time, Y-axis is volts 34 |
參考文獻 |
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