| 用于传感器节点供电的压电振动发电机研究 |
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| 引用本文： | 杨涛,齐洪东,冯月晖,曾勇.用于传感器节点供电的压电振动发电机研究[J].压电与声光,2009,31(4). |
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| 作者姓名： | 杨涛 齐洪东 冯月晖 曾勇 |
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| 作者单位： | 西南科技大学,信息工程学院,四川,绵阳,621010 |
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| 基金项目： | 国防基础科研基金，西南科技大学引进人才启动基金 |
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| 摘 要： | 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.
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| 关 键 词： | 压电发电机 稳健设计 梯度遗传算法 能量收集电路 |
A Piezoelectric Vibration Generator Used for Powering Wireless Sensor Network Nodes |
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| YANG Tao,QI Hong-dong,FENG Yue-hui,ZENG Yong.A Piezoelectric Vibration Generator Used for Powering Wireless Sensor Network Nodes[J].Piezoelectrics & Acoustooptics,2009,31(4). |
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| Authors: | YANG Tao QI Hong-dong FENG Yue-hui ZENG Yong |
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| Abstract: | 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. |
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| Keywords: | piezoelectric generator robust design gradient genetic algorithm energy collection circuit |
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