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  • 會議論文

壓電振動發電機的機電分析

Electromechanical Analysis of Piezoelectric Power Generators

摘要


壓電振動發電機的原理主要是利用壓電結構的壓電效應,將週遭環境所存在的機械振動能轉換為電能,再透過整流電路儲存電能於蓄電池中,提供小型電子裝置使用。為了提高壓電振動發電機中機械能轉換為電能的能量轉換關係,本文將針對壓電振動發電機的各個組成單元進行建模,這些單元包括壓電結構、整流電路與充電電容,逐一建立壓電振動發電機系統的完整數學模型。在實驗方面,從量測結果可以看出隨著電容C(下標 S)的不同,存在有最大輸出功率所對應的最佳負載。

並列摘要


The Piezoelectric bimorph with a concentrated mass attached at one end, an electric circuit for energy storage, and a rectifier that converts the AC output of the generator into a DC input for the storage circuit.In order to improve the energy conversion from the mechanical energy to electrical energy, piezoelectric power generator systems, which include piezoelectric structure, the rectifier circuit and the charging capacitor, are studied. In the experiments, the measurement results show that it exist a maximum output power corresponding to the optimal load in various capacitor C(subscript S) used case.

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