| Summary: | 碩士 === 國立成功大學 === 機械工程學系碩博士班 === 95 === There are a lot of different kinds of low-frequency vibration in the ambient environment; for instance, the vibration of cars and boats traveling on rough ground, and the swinging which occur when a human is walking, etc. Piezoelectric materials have the property of electromechanical energy conversion, and can convert vibration energy into electrical energy, thus achieving the objective of recycling useless energy. In view of this condition, this thesis investigates a piezoelectric power generator, and analyzes it’s electric power generation from low-frequency vibrations. With regard to the analytical method, the piezoelectric equivalent circuit model can illustrate the important parameters that influence how the piezoelectric element generates electrical energy. The circuit-simulation software PSIM is utilized to simulate charge of the capacitor, and verify the feasibility of this method in the experiment. In addition, this thesis proposes a set of procedures for designing, and realizing the application of a hand-shake piezoelectric power generator to drive a module of wireless switches.
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