CAJ | 학술논문

悬臂梁式压电振动发电机是一种新型的供电装置,可广泛应用于无线传感器网络节点进行供电.首先建立以悬臂梁为结构方式的压电振动换能器的模型;然后从遗传算法和田口稳健设计的理论方法出发,以输出平均功率为优化目标的对换能器进行稳健优化设计;接着以钽电容和稳压二极管为核心设计了换能器的能量收集电路,最后用优化后的参数制成样机进行测试.测试结果证明,该发电机完全能满足功耗为50 μW的传感器节点的使用要求,验证了该研究方案的可行性.
현비량식압전진동발전궤시일충신형적공전장치,가엄범응용우무선전감기망락절점진행공전.수선건립이현비량위결구방식적압전진동환능기적모형;연후종유전산법화전구은건설계적이론방법출발,이수출평균공솔위우화목표적대환능기진행은건우화설계;접착이단전용화은압이겁관위핵심설계료환능기적능량수집전로,최후용우화후적삼수제성양궤진행측시.측시결과증명,해발전궤완전능만족공모위50 μW적전감기절점적사용요구,험증료해연구방안적가행성.
Cantilever-type piezoelectric vibration transducers provides a new method for power supply,which can be widely used in wireless sensor network nodes. A model was designed for cantilever-type piezoelectric vibration generators. Based on Taguchi robust design and genetic algorithm, a robust optimization method was developed with average power output as the robust optimization objectives. The energy collection circuit was designed using a tantalum capacitor and a Zener diode . Through testing the prototypes with optimized parameters, the transducer characteristics were obtained. Experimental results showed that the generator could completely meet the requirements of sensor nodes with a power consumption of 50 μW.