具自我激磁加速系統穩定之微瓦級風力能量採集系統;A Self-Excitation Wind Energy Harvesting System with Settling Enhancement Using Micro Turbine

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Please use this identifier to cite or link to this item: http://ccur.lib.ccu.edu.tw/handle/A095B0000Q/394

Title:	具自我激磁加速系統穩定之微瓦級風力能量採集系統;A Self-Excitation Wind Energy Harvesting System with Settling Enhancement Using Micro Turbine
Authors:	謝任謙;HSIEH, JEN-CHIEN
Contributors:	電機工程研究所
Keywords:	風力能量採集;單輸入雙輸出架構;最大能量擷取;Energy harvesting;maximum power extraction (MPE);micro turbine
Date:	2017
Issue Date:	2019-07-17
Publisher:	電機工程研究所
Abstract:	本篇論文完成一應用於風力輸入之能量採集系統並具有能量擷取提升及快速啟動電路。環境中的風力可轉換成給予電路工作的能量，能量經過穩壓後給予外部電路做應用，但小型的換能器所能採集的能量大小有限，在不穩定的風源中除了一般風速的考量外，微弱風下的考量也是必要的。本論文使用微瓦能量等級之風力發電機(以下簡稱風機)作為能量來源，風機內部的寄生電感透過本論文的電源管理系統達到自激磁( Self-excitation )的功能。透過風機自激磁的方式解決交流輸入下低輸入電壓時的壓降限制( IR-drop )，提升輸入能量已達到快速充電啟動與能量提升的功能，本系統於低風速( < 14 Hz )環境下，自我激磁啟動電路之啟動速度高於二極體與蕭特基二極體橋式整流電路。此外，傳統的能量採集系統為了達到交流轉直流、最大能量採集與穩壓的功能，會分成三級功率轉換，增加了導通與開關損耗。本系統僅使用兩級功率轉換來達到功率消耗的減少。本系統在輸入尖端電壓2 V、輸入能量2 mW時擁有63 %的端點對端點( End to end )效率。最後，本論文使用台灣積體電路公司0.35 μm 2P4M CMOS製程，以100 CQFP封裝，尺寸為2.4×3.2 mm2。 A novel wind energy harvesting (WEH) system using micro-watt turbine is proposed in this paper. Toward enhancing the wind velocity range and system settling time of the WEH system, parasitic inductance of the turbine is utilized for self-excitation. The power converter in this system consists of an efficient two-stage converter rather than typical three-stage architecture. A regulator and the maximum power extraction (MPE) are also implemented in the same chip. The smallest input voltage to settle the system is less than 0.25 V and the settling time is less than traditional full-bridge rectifier with a 1 mF rectified capacitor. This work is implemented in TSMC 0.35-μm process, achieving 63 % end-to-end efficiency. The total active area is 7.68 mm2.
Appears in Collections:	[電機工程研究所] 學位論文

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