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研究生:黃俊淵
研究生(外文):Jun-Yuan Huang
論文名稱:三級架構之複金屬燈電子式安定器穩定度分析
論文名稱(外文):Stability Analysis of Three-Stage Electronic Ballast for Metal Halide Lamp
指導教授:梁從主林瑞禮
指導教授(外文):T. J. LiangR. L. Lin
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電機工程學系碩博士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2005
畢業學年度:93
語文別:英文
論文頁數:83
中文關鍵詞:複金屬燈電子式安定器
外文關鍵詞:Metal Halide LampElectronic Ballast
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  • 被引用被引用:2
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  本文提出三級架構之複金屬燈電子式安定器的穩定度分析。由於複金屬燈在點燈瞬間,其燈管阻抗會從原先的開路迅速下降到幾十歐姆的等級,這個劇烈的變化可能導致安定器的不穩定,而造成燈管電弧熄滅以致於點燈失敗。基於這個原因,本文將以安定器各級間阻抗匹配(系統迴路增益)的觀點去探討安定器的穩定度,藉以了解三級架構之複金屬燈電子式安定器在啟動時所產生的不穩定因素,進而使得點燈順利。對於三級(功率因數修正器、直流至直流切換式轉換器、全橋換流器)的電子式安定器,其安定器整體的系統穩定度可以使用各級間阻抗匹配的技術來決定,因此必須建立安定器各級間輸入阻抗與輸出阻抗的小信號模型。然而,為了簡化分析的過程,本文將全橋換流器和複金屬燈以一個等效電阻替代之;接著,利用三端點脈寬調變開關模型予以建立三級架構之電子式安定器的小信號模型。另外,本文也將對此三級架構之電子式安定器的輸入電流諧波作一簡單的討論。最後,利用模擬軟體SIMetrix/SIMPLIS來對安定器的小信號模型作一個驗證。
 This thesis presents the analysis of the system stability of the three-stage electronic ballast for metal halide lamp. In this type of lamp, the lamp impedance dramatically drops from an open circuit to a few tens of ohms after ignition, which causes the arc in the lamp to extinguish and thus results in ignition failure. This paper will analyze system stability from the standpoint of the interactions between different stages in the ballast. For the three-stage (power factor correction circuit, DC/DC converter and DC/AC inverter) electronic ballast, the overall system stability margin can be determined by the impedance ratio (minor loop-gain) between each of the three stages. For the simplification of analysis, the DC/AC inverter and the high-intensity discharge (HID) lamp in the three-stage ballast are modeled together by an equivalent resistance. Therefore, the small-signal model of the three-stage electronic ballast is derived by applying the three-terminal pulse-width modulation (PWM) switch model. Moreover, the input-current II harmonics of the system are also discussed. Finally, the derived small-signal model is verified by the simulation in SIMetrix/SIMPLIS.
Chapter 1. Introduction………………………………………… 1
1.1. Background……………………………………………………….............. 1
1.2. Motivation………………………………………………………………… 2
1.3. Thesis Outline…………………………………………………………….. 3
Chapter 2. Modeling of PFC Front-End Stage………………… 4
2.1. Introduction……………………………………………………………….. 4
2.2. Operational Principle of Power Factor Correction Circuit with Boundary-
Conduction Mode…………………………………………………………. 6
2.3. Small-Signal Model of Open-Loop System………………………………. 9
2.3.1. Derivation of Transfer Functions……………………………………... 10
2.3.2. Simulation Validation………………………………………………… 13
2.4. Small-Signal Model of Closed-Loop System…………………………….. 20
2.4.1. Derivation of Transfer Functions…………………………………….. 20
2.4.2. Simulation Validation………………………………………………… 24
2.5. Summary………………………………………………………………….. 28
Chapter 3. Modeling of DC/DC Buck Converter………………. 29
3.1. Introduction……………………………………………………………….. 29
3.2. Operational Principle of Buck Converter with Constant Power Control…. 31
3.3. Small-Signal Model of Open-Loop System………………………………. 34
3.3.1. Derivation of Transfer Functions……………………….…………….. 35
3.3.2. Simulation Validation………………………………………………… 38
3.4. Small-Signal Model of Closed-Loop System…………………………….. 48
3.4.1. Derivation of Transfer Functions…………………………………….. 49
3.4.2. Simulation Validation………………………………………………… 53
3.5. Summary…………………………………………………………………... 57
Chapter 4. Stability Analysis of System………………………… 58
4.1. Introduction……………………………………………………………….. 58
4.2. Stability Analysis………………………………………………………….. 61
4.2.1. Measurement of Equivalent Resistance for Inverter and HID Lamp… 61
4.2.2. Interaction between PFC Circuit and DC/DC Converter…………….. 65
4.3. Input-Current Harmonics of the Three-Stage Electronic Ballast…………. 76
4.4. Summary…………………………………………………………………... 79
Chapter 5. Conclusions and Future Works……………………... 80
References………………………………………………………… 82
[1] Yongxuan Hu, “Analysis and Design of High-Intensity-Discharge Lamp Ballast for Automotive Headlamp”, Thesis Dissertation, VPI&SU, November 19, 2001.
[2] C.M. Wildrick, F.C. Lee “A Method of Defining the Load Impedance Specification for a Stable Distributed Power System,” IEEE Transaction on Power Electronics, Vol.10, No. 3, May 1995, pp. 280-5.
[3] Vatche Vorperian, “Simplified Analysis of PWM Converters Using Model of PWM Switch Part I: Continuous Conduction Mode,” IEEE Transaction, Vol. 26, No. 3, May 1990.
[4] Jih-Sheng Lai, “Design Consideration for Power Factor Correction Boost Converter Operating at the Boundary of Continuous Conduction Mode and Discontinuous Conduction Mode,” Applied Power Electronics Conference and Exposition, March 1993, pp. 267 – 273.
[5] “L6561, Enhanced Transition Mode Power Factor Corrector”, ST Microelectronics Application Note, AN966, March 2003.
[6] “L6561, Control Loop Modeling of TM PFC”, ST Microelectronics Application Note, AN1089, March 2000.
[7] Byungcho Choi, “Modeling and Small-Signal Analysis of Controlled On-Time Boost Power-Factor-Correction Circuit,” IEEE Transaction, Vol. 48, No. 1, February 2001.
[8] F. A. Huliehel, F. C. Lee, and B. H. Cho, “Small-signal modeling of the single-phase boost high power factor converter with constant frequency control,” in Proc. IEEE PESC’92, 1992, pp.475-482.
[9] G. Zhu, H. Wei, P. Kornetzky, and I. Batarseh, “Small-signal modeling of a single-switch ac/dc power factor correction circuit,” in Proc. IEEE PESC’98, 1998, 83
pp. 601-607.
[10] R. Erickson, M. Madigan, and S. Singer, “Design of a simple high-power-factor rectified based on the flyback converter,” in Proc. IEEE APEC’90, 1990, pp.792-801.
[11] Tan Jiang, “A Novel Single Stage Single Switch PFC Converter with Constant Power Control for Ballast for Medium HID Lamps,” Industry Applications Conference, Vol. 5, Oct. 2000, pp. 3415 – 3418.
[12] J.J. Shieh, “Closed-form oriented loop compensator design for peak current-mode controlled DC/DC regulators,” IEE Proc.-Electr. Power Appl., Vol. 150, No. 3, May 2003
[13] Xiaogang Feng, “Impedance Specification and Impedance Improvement for DC Distributed Power System,” Power Electronics Specialists Conference, Vol. 2, July 1999, pp. 889 – 894.
[14] Xiaogang Feng, “Monitoring the Stability of DC Distributed Power System,” Virginia Power Electronics Center Power Electronics Seminar, 2001
[15] R. D. Middlebrook, “imput filter consideration in design and application of switching regulators”, Proc. IEEE Industrial Application Society Annual Meeting, 1976.
[16] Gurjit Thandi, “Modeling, Control and Stability of a PEBB Based DC Distributed Power System,” Thesis, VPI&SU, June 1997.
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