A piezoelectric wind energy collector and its control method

Abstract

The invention discloses a piezoelectric wind energy collector and a control method, which relate to the field of micro energy collection. The piezoelectric wind energy collector includes a plurality of piezoelectric power generation parts. The initial lengths of the plates of the piezoelectric power generation parts are different, so that the piezoelectric power generation parts have different wind vibration frequencies. By enlarging the specific wind vibration frequency of the piezoelectric power generation parts, the specific wind vibration frequency of the piezoelectric power generation parts can be closest to the wind vibration frequency, and an ideal wind resonance effect can be achieved. The ability of the device to collect electric energy when the device deviates from the wind resonance frequency can be improved by increasing the amplitude. According to the control method, the data of the piezoelectric ceramic sheets on the plate of each piezoelectric power generation part is collected, the piezoelectric ceramic sheet with the highest generating capacity is determined through comparison, and the lengths of the other plates are adjusted. By adjusting the lengths of the plates, the specific wind vibration frequency of the piezoelectric power generation parts can be closest to the wind vibration frequency after the length change of the plates, and thus, an ideal wind resonance effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of micro energy collection, in particular to a piezoelectric wind energy collector and a control method. Background technique [0002] Due to the shortage of energy in the "oil crisis", people realized the instability and limitation of conventional mineral energy supply, so seeking clean and renewable energy has become an important issue in the modern world. As a renewable and non-polluting natural energy, wind energy has once again attracted the attention of governments, scientific research institutions and enterprises. [0003] Among the various forms of energy existing in the natural environment, the vibration energy excited by wind energy has a relatively high energy density. Piezoelectric materials have many advantages for collecting vibration energy, such as simple structure, no heat generation, no electromagnetic interference, clean and environmental protection, etc. It is an ideal power source for ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a piezoelectric wind energy collector and its control method, which solves the problem that the vibration of various wind vibration frequencies existing in the surrounding environment cannot be fully utilized

Images