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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25108完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 顏家鈺(Jia-Yush Yen) | |
| dc.contributor.author | Zuo-Ting Wong | en |
| dc.contributor.author | 翁左庭 | zh_TW |
| dc.date.accessioned | 2021-06-08T06:02:30Z | - |
| dc.date.copyright | 2011-08-16 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-08-05 | |
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Zhao, “A novel PWM control method for hybrid-clamped multilevel inverters,” IEEE transactions on industrial electronics, vol. 57, no. 7, pp. 2365-2373, 2010 [33] G. Bertotti, “Hysteresis in magnetism, ” Academic Press, 1998. [34] G. Bertotti, “Physical interpretation of eddy current losses in ferromagnetic materials. I. Theoretical considerations, ” Journal of Applied Physic, vol.57, no. 6, pp. 2110-2117, 1985. [35] B.D. Cullity, C. D. Graham, “Introduction to Magnetic Materials ,” Addison-Wesley Pub. Co., 1972. [36] S. Yanase, H. Kimata, Y. Okazaki and S. Hashi, “A simple prediction method for magnetic losses of electrical steel sheets under arbitrary induction waveform,” IEEE transactions on magnetics, vol. 41, no. 11, pp. 4365-4367, 2005. [37] Emad Dlala, “A simplified iron loss model for laminated magnetic cores,” IEEE transactions on magnetics, vol. 44, no. 11, pp.3169-3172, 2008. [38] J.J. Lee, Y.K. Kim, H. Nam, K.H. Ha, J.P. Hong and D.H. Hwang, “Loss distribution of three-phase induction motor fed by pulsewidth-modulated inverter,” IEEE transactions on magnetics, vol.40, no. 2, pp. 762-765, 2004. [39] M. Yabumoto, C. Kaido, T. Wakisaka, T. Kubota, N. Suzuki, “Electrical steel sheet for traction motors of hybrid/electric vehicles,” Nippon Steel Technical Report, no. 87, pp. 57-61, 2003. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25108 | - |
| dc.description.abstract | 本研究的目的在於探討電磁鋼片操作在脈衝寬度調變波形（PWM）下，調整電壓波形參數所對於矽鋼片的電磁特性影響。
研究方法以調整PWM兩參數：振幅調變指數（ma）、頻率調變指數（mf），討論其變化與鐵損值的相關性，並進一步探究振幅調變指數大於1操作下的電磁特性表現。 主要的鐵損分析與討論分成以下部份：（一）各情況下感應電壓波形的諧波分析，討論諧波分佈、大小對鐵損的影響；（二）物理定義上磁滯損、渦流損與異常渦流損的鐵損分離估測，分析不同PWM波形下各鐵損組成的差異；（三）單極切換模式下，以形狀因子係數對鐵損進行估測的效果；（四）雙極切換的小磁滯迴圈現象。 由以上有系統的分析量測實驗，配合即時顯示電磁特性的量測系統，可以有效分析電磁鋼片之特性，有利於電磁鋼片的應用和將來材料的研發工作。 | zh_TW |
| dc.description.abstract | The purpose of this research is to explore the electro-magnetic characteristics of the silicon steel sheets under PWM excitation.
The relationship of iron loss and two PWM parameters, including amplitude modulation index (ma) and frequency modulation index (mf), are discussed. Furthermore, the performance of silicon steel sheets which operated under amplitude modulation index higher than 1 is discussed. Analysis and discussions include the following topics: (1) Harmonic analysis of induced voltage waveform and the effect of harmonics magnitude and distribution on the iron loss; (2) To divide iron loss into three parts: hysteresis loss, eddy current loss and excess loss, discussing the difference under various PWM waveform excitation; (3) The estimation of iron loss by form factor coefficient under unipolar switching PWM; (4) The phenomenon and analysis of minor loops under bipolar switching PWM excitation. With the developed systematic measurement and analysis processes, the properties of silicon steel can be obtained by the real-time display software system. This study could be helpful for silicon steel applications and future material development. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T06:02:30Z (GMT). No. of bitstreams: 1 ntu-100-R98522810-1.pdf: 11153696 bytes, checksum: 23ff780ffa1bae3ad5549785a63faa42 (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | 目錄
摘要 I Abstract II 目錄 V 圖目錄 IX 表目錄 XIII 第1章 導論 1 1.1 研究動機 1 1.2 文獻回顧 2 1.3 研究內容 4 1.4 研究貢獻 5 第2章 實驗原理與架構 7 2.1 實驗原理 7 2.1.1 鐵損成因 7 2.1.2 基本電磁原理 7 2.1.3 鐵損計算方法 9 2.1.4 形狀因子(FF)與形狀因子係數(Fc) 11 2.2 實驗架構 12 2.2.1 Epstein鐵損量測器 12 2.2.2 新設計環形鐵損量測器 14 2.2.3 PWM波形產生 20 2.2.4 實驗儀器與設備 23 2.3 實驗步驟 27 第3章 PWM鐵損實驗 29 3.1 脈寬調變波形量測 31 3.2 PWM基本參數比較 36 3.2.1 振幅調變指數的影響 36 3.2.2 頻率調變指數的影響 42 3.2.3 系統的重現性與穩定性 43 3.3 諧波分析 49 3.3.1 基本諧波定義 49 3.3.2 振幅調變指數分析 50 3.3.3 方波輸入 56 3.3.4 頻率調變指數分析 59 3.4 結果與討論 62 第4章 鐵損分離實驗 63 4.1 鐵損分離原理 63 4.1.1 磁滯損失 63 4.1.2 渦流損失 63 4.1.3 異常渦流損失 66 4.2 鐵損分離實驗 67 4.2.1 準靜態磁滯損失實驗 67 4.2.2 鐵損分離結合形狀因子 69 4.3 結果與討論 70 第5章 PWM下小磁滯迴圈分析 85 5.1 小迴圈現象分析 85 5.2 小迴圈量測方法 90 5.3 實驗結果與討論 96 第6章 結論與未來發展 103 6.1 結果與討論 103 6.2 未來展望 105 參考文獻 107 附錄 113 | |
| dc.language.iso | zh-TW | |
| dc.subject | 環形量測 | zh_TW |
| dc.subject | 鐵損 | zh_TW |
| dc.subject | PWM | zh_TW |
| dc.subject | 小磁滯迴圈 | zh_TW |
| dc.subject | 矽鋼片 | zh_TW |
| dc.subject | 諧波分析 | zh_TW |
| dc.subject | 鐵損分離 | zh_TW |
| dc.subject | PWM | en |
| dc.subject | Iron loss | en |
| dc.subject | Toroidal frame | en |
| dc.subject | Loss separation | en |
| dc.subject | Harmonic analysis | en |
| dc.subject | Silicon steel | en |
| dc.subject | Minor loop | en |
| dc.title | 矽鋼片於高頻脈寬調變激磁狀態下之電磁特性分析 | zh_TW |
| dc.title | Electromagnetic Characteristics of Silicon Steel sheet Under High Frequency PWM Excitation | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 99-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 絲國一,李炳坤 | |
| dc.subject.keyword | 鐵損,PWM,小磁滯迴圈,矽鋼片,諧波分析,鐵損分離,環形量測, | zh_TW |
| dc.subject.keyword | Iron loss,PWM, Minor loop,Silicon steel,Harmonic analysis,Loss separation,Toroidal frame, | en |
| dc.relation.page | 114 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2011-08-05 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| 顯示於系所單位： | 機械工程學系 | |
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