风动压电发电机的结构设计及实验研究

Structural Design and Experimental Study on Wind-Driven Piezoelectric Generator

物体在空中飞行时,或物体静止于流动的气体中,气体相对于物体进行流动,该流动的动能可使涡轮发生转动,运用涡轮转动时产生的力迫使压电振子进行振动,进行机械能与电能的转换,产生电能,通过桥式整流电路与贮存电路把该电能存贮下来,进行稳压后给一些电路进行供电。因空气流动的频率具有不确定性,研究了压电振子在非谐振环境下产生电能的原理与特点,进行了压电振子产生的电能作为电路电源可行性验证,设计了发电机的结构,进行了模拟实验。实验结果表明,运用强迫振动的方式可保证压电振子产生电能,利用该原理制成的压电发电机,具有无污染,活动部件少,激发时间短,产品易于小型化的特点。

When an object flies in the air, or the object is stationary in the flow of gas, the gas flows related to the object, and the flow of the kinetic energy makes the turbine rotate. Thus the forces generated by the turbine rotation can be used to make the piezoelectric vibrator vibrate, and conduct the conversion of mechanical energy and electrical energy to generate electricity. The electrical energy can be storied through the bridge rectifier circuit and the storage circuit, after be stabilized, the electrical energy can be supplied to some circuits. Science the frequency of the air flow is uncertain, the principle and characteristics of the piezoelectric vibrator to produce electricity are studied in the non-resonant environment, the feasibility on the piezoelectric vibrator to produce electricity as the power to the circuit is tested and verified, the structure of the generator is designed. Simulation and experimental results show that the use of forced vibration of the piezoelectric vibrator can ensure to produce electricity. The piezoelectric generator used this principle has the features of no pollution, less moving parts, stimulating in a short time and easy-to-be-miniaturized.