研究生: |
趙栢陞 Bo-Sheng Zhao |
---|---|
論文名稱: |
四階層飛馳電容型圖騰柱功率因數修正器研製 Design and Implementation of Four Level Flying Capacitor Totem Pole Power Factor Correction |
指導教授: |
林景源
Jing-Yuan Lin |
口試委員: |
林景源
Jing-Yuan Lin 邱煌仁 Huang-Jen Chiu 張佑承 You-Cheng ZHANG 王建民 Jian-Min Wang |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2022 |
畢業學年度: | 110 |
語文別: | 中文 |
論文頁數: | 117 |
中文關鍵詞: | 圖騰柱 、多階層 、飛馳電容 、氮化鎵開關 、數位控制 |
外文關鍵詞: | totem pole, multi-level, flying capacitor, GaN device, digital control |
相關次數: | 點閱:492 下載:0 |
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本論文將介紹四階層飛馳電容型圖騰柱功率因數修正器,傳統二階層圖騰柱操作於連續導通模式下,硬切損失的關係使得切換頻率受限於低頻切換,因此難以將磁性元件小型化,與傳統二階層圖騰柱相比,四階層飛馳電容型圖騰柱是透過飛馳電容來達成多顆功率開關疊接的架構,使用相移式脈波寬度調變技術,使電感上等效漣波頻率增加數倍,電感可以小型化來獲取更高的功率密度,並透過飛馳電容平衡每顆關關上的電壓,藉以使用低電壓應力的200V氮化鎵開關,同時讓開關節點上電壓有數種變化,可減小電感上的感應電動勢,較低的dv/dt使電磁干擾上影響較小,並探討階層數對於電感電流漣波之影響、分析電路動作原理、控制迴路與補償器,以及圖騰柱在輸入電壓零交越時之突波電流與同步整流開關控制策略的問題。為驗證分析,將以電力電子系統模擬軟體(PSIM 11.0)來模擬電路的實際工作狀況。本論文實現一輸入電壓從90到264 Vrms,輸出功率2.6 kW,直流輸出電壓380 V,峰值效率最高達99.11 %與功率因數最高達0.99之高效率、高密度、高功率與高功率因數之數位控制功率因數修正器。
This thesis introduces a Four-Level Flying Capacitor Totem-Pole Power-Factor-Correction (PFC), conventional Two-Level Totem-Pole operate at Continuous Conduction Mode (CCM), the hard switching loss issue limit PFC converter work at low switching frequencies, hence it’s difficult to miniaturize the magnetic element. Compared with the con-ventional Two-Level Totem-Pole PFC, this Four-Level Totem-Pole PFC is a cascaded connection power switch topology by Flying Capacitor, Using Phase-Shift Pulse Width-Modulation (PSPWM), so that inductor equivalent frequency increase several-fold, the inductor can be minia-turized for higher power density, and balance the voltage on each switch through the flying-capacitor, so as to utilizes the low voltage GaN de-vices, so let switching node have various voltage, reduce the voltage stress on the inductor, lower dv/dt makes EMI less impactful, then discuss the effect of the number of level on the inductor current ripple, analyze the operation principle, control loop and compensator, moreover totem pole current spike issue at input voltage zero crossing and synchronous switch control strategy issue. To validate the analysis, use power elec-tronics simulation software (PSIM 11.0) to simulate the actual operation of the circuit. This paper realizes a high-efficiency, high-density, high-power and high-power-density PFC with an input voltage from 90 to 264 Vrms, an output power of 2.6 kW, a DC output voltage of 380 V, an efficiency of 99.11% and a power factor of 0.99.
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