Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/1953
標題: 壓電式發電裝置研究
Study of the piezoelectric generator
作者: 彭泰龍
peng, tai-long
關鍵字: mini-scale piezoelectric power generator;壓電式微型發電裝置;circuit for energy storage;circuit analysis;configuration design;儲能電路;電路分析;構形設計
出版社: 機械工程學系所
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摘要: 
本文主要探討微型壓電式發電裝置之機制,原理乃是利用壓電材料的正壓電效應,將外界的振動機械能量經壓電材料轉換成電能型式輸出,以期望輸出之電能作有效的運用。
本研究重點有二,一為結構振動,利用理論推導方式得知發電元件的形變量、頻率、應力、電荷、電壓、功率之間交互關係,以及實驗的方式得知發電元件的共振頻率與共振電壓,並利用ANSYS軟體作模態分析。
另一為電路分析,壓電元件輸出的是交流電型式,需透過整流後方能供應電子元件電源,或者是儲能用;在此利用實驗的方法,量測共振功率、整流特性、電容鏈波效應,並以Pspice模擬不同輸入頻率與電容值對輸出影響。
文中分別探討了外界振源頻率在高、低頻率時,微型壓電式發電裝置之應用可能性,同時也考量了在同樣空間限制下,如何藉由構形設計來改善發電效果。

The main topic in this thesis is to discuss the mechanism for mini-scale piezoelectric power generator. This device is made by piezoelectric material using the principle of direct piezoelectric effect which can transfer the mechanical energy due to vibration into electric energy.
There are two issues in this research. First is the structural vibration of device. The relationships between strain, frequency, stress, charge, voltage, and power are derived by theories. The resonance frequency and voltage of resonance are obtained by experiment. A CAE software ANSYS is used here to analyze the modal shape.
Second is the analysis of circuit. The output of piezoelectric device is alternating current which must be rectified for further usage, such as power supply of electric device or energy storage. The power of resonance, characteristic of rectification, and chain wave effect of capacitance are obtained by experiment. Also the Pspice software is used to simulate the outputs under different input frequency and capacitance.
The possible application of mini-scale piezoelectric power generator is discussed in here for shaker of high frequency and low frequency. Also using different configuration design to improve the effect of power generated under same space is studied in this research.
URI: http://hdl.handle.net/11455/1953
其他識別: U0005-2908200713181400
Appears in Collections:機械工程學系所

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