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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/83814完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳景然(Ching-Jan Chen) | |
| dc.contributor.author | Hou-Fong Ma | en |
| dc.contributor.author | 馬浩峰 | zh_TW |
| dc.date.accessioned | 2023-03-19T21:19:06Z | - |
| dc.date.copyright | 2022-08-04 | |
| dc.date.issued | 2022 | |
| dc.date.submitted | 2022-07-29 | |
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Yamamoto, “A current sharing method utilizing single balancing transformer for a multiphase LLC resonant converter with integrated magnetics”, IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 6, issue 2, Jun. 2018. [20] M. Noah, K. Umetani, S. Endo, H. Ishibashi, J. Imaoka, and M. Yamamoto, “A lagrangian dynamics model of integrated transformer incorporated in a multi-phase LLC resonant converter”, 2017 IEEE ECCE, Oct. 2017. [21] S. Li, Q. Min, E. Rong, R. Zhang, X. Du, and S. Lu, “A magnetic integration half-turn planar transformer and its analysis for LLC resonant DC-DC converters”, IEEE Access, Sep. 2019. [22] C. Fei, F. C. Lee, Q. Li, “A new design paradigm for GaN based LLC converter”, 2017 IEEE SPEC, Dec. 2017. [23] M. Noah, S. Kimura, S. Endo, M. Yamamoto, J. Imaoka, K. Umetani and W. Martinez, “A novel three-phase LLC resonant converter with integrated magnetics for lower turn-off losses and higher power density”, 2017 APEC, Mar. 2017. [24] C. Park and S. Han, “Analysis and design of an integrated magnetics planar transformer for high power density LLC resonant converter”, IEEE Access, vol. 9, Nov. 2021. [25] M. Li and Z. Ouyang, B. Zhao and M. A. E. Andersen, “Analysis and modeling of integrated magnetics for LLC resonant converters”, IECON 2017, Oct. 2017. [26] H. Yang and Z. Lu, “Analysis on near-field effect caused by stray magnetic field of integrated LLC transformer”, 2014 International Power Electronics and Application Conference and Exposition, Nov. 2014. [27] F. C. Lee, Q. Li, Z. Liu, Y. Yang, C. Fei and M. Mu, “Application of GaN devices for 1kW server power supply with integrated magnetics”, CPSS Transactions on Power Electronics and Applications, vol. 1, issue 1, Dec. 2016. [28] S. Bolte, F. Schafmeister and J. Bocker, “Bidirectional resonant converter with integrated magnetics for on-board chargers”, 2019 IEEE ISIE, Jun. 2019. [29] Y. Liu, H. Wu, J. Zou, Y. Tai and Z. 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Jiang, “Thin-film integrated magnetic component for three-level LLC resonant converter”, 2005 IEEE International Conference on Industrial Technology, Dec. 2005. [37] M. Dai, X. Zhang, H. Li, D. Zhou, Y. Wang and D. Xu, “LLC converter with an integrated planar matrix transformer based on variable width winding”, 2019 22nd ICEMS, Aug. 2019. [38] R. Cheng, Y. Yang and Y. Jiang, “Design of LLC resonant converter with integrated magnetic technology”, 2005 International Conference on Electrical Machines and Systems, Sep. 2005. [39] C. W. Park and S. K. Han, “Design of an integrated magnetics structure for LLC resonant converter”, IECON 2017, Nov. 2017 [40] Y. Zhang, D. Xu, K. Mino and K. Sasagawa, “1MHz-1kW LLC resonant converter with integrated magnetics”, 2007 IEEE APEC, Feb. 2007. [41] TDK, “Ferrites and accessories”, ELP 64/10/50 with I 64/5/50 Cores datasheet, May 2017. [42] TDK, “Ferrites and accessories”, SIFERRIT material N87 datasheet, Sept. 2017. [43] M. K. Kazimierczuk, “High-frequency magnetic components”, U.K., West Sussex: Wiley, 2009. [44] M. Noah, T. Shirakawa, K. Umetani, J. Imaoka, M. Yamamoto, and E. Hiraki, “Effects of secondary leakage inductance on the LLC resonant converter”, 2019 IEEE APEC, Mar. 2019. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/83814 | - |
| dc.description.abstract | 由於高效率與高功率密度之特性，LLC諧振轉換器已廣泛被採用在不同應用之中。為了改善轉換器之功率密度，諧振電感與變壓器整合在同一個鐵芯之整合磁件常被使用。諧振電感與變壓器之間之耦合效應會改變LLC轉換器之穩態特性，並引發如增益曲線偏移與元件應力過大等問題。但是，LLC轉換器之耦合效應從未被分析。 本論文旨在分析LLC諧振轉換器之整合磁件耦合效應，包括時域分析、電壓增益分析、諧振槽之輸入阻抗分析，亦計算了元件上之電壓與電流應力，以分析開關零電壓切換 (ZVS) 條件和能量損耗。此外，三種不同繞線方法之整合磁件設計亦展現與分析，並由Ansys Maxwell與Simplorer模擬所提出之磁件設計。具有400 V 輸入和 20 V/10 A 輸出之轉換器原型的實驗結果驗證了所提出分析之準確性。所提出之分析如在正規化頻率為1之增益曲線與諧振電感電流峰值，與實驗結果相比分別只有11.25%誤差與1.99%誤差，與傳統分析相比分別減少55%與81.6%。 | zh_TW |
| dc.description.abstract | LLC resonant converter has been widely adopted in different applications due to its high efficiency and high-power density characteristics. To improve the power density of the converter, an integrated magnetic combining resonant inductor and transformer into the same core is often adopted. The coupling effects between resonant inductor and transformer change the LLC converter’s steady-state characteristics and induce issues such as gain curve shift, and component overstress. However, the coupling effects have never been analyzed for LLC converter. This thesis aims to analyze the coupling effects of the integrated magnetic for the LLC resonant converter, including time-domain analysis, voltage gain analysis, and the input impedance analysis of the resonant tank. Voltage and current stress on components are also calculated to analyze the zero-voltage switching conditions of switches and power loss. In addition, magnetic designs of integrated magnetic with three different winding structures are also performed and analyzed. The characteristics of the proposed magnetic designs are simulated by ANSYS Maxwell and Simplorer. Experimental results of a prototype converter with 400 V input and 20 V/10 A output verify the accuracy of the proposed analysis. The proposed analysis such as gain curve when the normalized frequency is 1 and peak value of resonant inductor current only have 11.25% mismatch and 1.99% mismatch respectively, compared with the experimental results, and reduce by 55% and 81.6% respectively compared with traditional analysis. | en |
| dc.description.provenance | Made available in DSpace on 2023-03-19T21:19:06Z (GMT). No. of bitstreams: 1 U0001-2807202202333500.pdf: 9419939 bytes, checksum: cc20e17dc348f0e503e9674fd301dc81 (MD5) Previous issue date: 2022 | en |
| dc.description.tableofcontents | 口試委員會審定書 ……………………………………………………………………...i 致謝……………………………………………………………………………………...ii 中文摘要……………………………………………………………………………...iii Abstract………………………………………………………………………………iv Table of Contents………………………………………………………………………v List of Figures...………………………………………………………………………vii List of Tables……………………………………………………………………….xiii Chapter 1. Introduction………………………………………………………………1 1.1 Research Background and Recent Development……………………………1 1.2 Research Motivation and Objectives…………………………………………4 1.3 Thesis Organization………………………………………………………8 1.4 Thesis Contribution………………………………………………………9 Chapter 2. Circuit Analysis of Integrated Magnetic with Coupling Effect for LLC Resonant Converter………………………………………. 10 2.1 Time-Domain Analysis………………………………………………………10 2.2 Voltage Gain Analysis…………………………………………………….16 2.3 Input Impedance/Input Admittance Analysis………………………………20 2.4 Voltage Stress and Current Stress Analysis………………………………….22 2.4.1 Resonant Inductor Current iLr……………………………………….23 2.4.2 Rectifier Diode Current iD ………………………………………….25 2.4.3 Output Capacitor Current iCo……………………………………….26 2.4.4 Switch Current iQ1-4………………………………………………….26 2.5 Analysis of Zero-Voltage Switching Conditions of Switches ……………….28 2.6 Power Loss Analysis ……………………………………………………….31 Chapter 3. Magnetic Circuit Analysis of Integrated Magnetics……………………34 3.1 Ferrite Core Selection……………………………………………………...34 3.2 Symmetrical Winding Method………………………………………...……35 3.3 Asymmetrical Winding Method A…………………………………………38 3.4 Asymmetrical Winding Method B…………………………………………41 Chapter 4. Design of Integrated Magnetics…………………………………………45 4.1 Symmetrical Winding Method……………………………………………..46 4.2 Asymmetrical Winding Method A……………………………..……………48 4.3 Asymmetrical Winding Method B…………………………...………….…..51 Chapter 5. Maxwell Simulation and Co-Simulation with Simplorer….……………54 5.1 Symmetrical Winding Method………………………………………………54 5.2 Asymmetrical Winding Method A……………………………….………...59 5.3 Asymmetrical Winding Method B……………………………….………...64 Chapter 6. Power Loss Analysis of Magnetic Components………………………….71 6.1 Core Loss…………………………………………………….………………72 6.1.1 Hysteresis Loss…………………………………………………….72 6.1.2 Eddy Current Loss ………………………………………………….75 6.2 Copper Loss………………………………….………..……………………75 6.2.1 DC Resistance……………………………………………………….75 6.2.2 Skin Effect ………………………………………………………….77 6.2.3 Proximity Effect…………………………………………………….80 6.2.4 Fringing Effect …………………………………………………….86 Chapter 7. Experiment Results……………………………………………………….89 7.1 Experiment Setup………………………………………….………………89 7.2 Experiment Results Verification……………………………………………91 7.2.1 Integrated Magnetic Parameters Measurement…………………….91 7.2.2 Steady-State Operation…………………………………………….99 7.2.3 Efficiency Measurement……………………………………………107 7.2.4 Voltage Gain Curve Verification……………………………………116 Chapter 8. Conclusion and Future Works………………………………………….118 8.1 Conclusions………………………………………………….……………118 8.2 Future Works……………………………………………….………………119 Reference……………………………………………………………………………120 | |
| dc.language.iso | en | |
| dc.subject | 穩態分析 | zh_TW |
| dc.subject | LLC諧振轉換器 | zh_TW |
| dc.subject | 整合磁件 | zh_TW |
| dc.subject | 耦合效應 | zh_TW |
| dc.subject | 耦合系數 | zh_TW |
| dc.subject | integrated magnetic | en |
| dc.subject | steady-state analysis | en |
| dc.subject | coupling coefficients | en |
| dc.subject | coupling effects | en |
| dc.subject | LLC resonant converter | en |
| dc.title | LLC諧振轉換器之整合磁件耦合效應分析與設計 | zh_TW |
| dc.title | Coupling Effect Analysis and Design of Integrated Magnetics for LLC Resonant Converter | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 110-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 陳耀銘(Yaow-Ming Chen),邱煌仁(Huang-Jen Chiu),劉宇晨(Yu-Chen Liu) | |
| dc.subject.keyword | LLC諧振轉換器,整合磁件,耦合效應,耦合系數,穩態分析, | zh_TW |
| dc.subject.keyword | LLC resonant converter,integrated magnetic,coupling effects,coupling coefficients,steady-state analysis, | en |
| dc.relation.page | 122 | |
| dc.identifier.doi | 10.6342/NTU202201811 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2022-07-29 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電機工程學研究所 | zh_TW |
| 顯示於系所單位： | 電機工程學系 | |
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