基于相关向量机的振动能量采集器输出电压估计

Chuan Li, Daewoong Hong, K. Kwon, Jaehwa Jeong
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引用次数: 0

摘要

通过将自然振动转化为电能,振动能量采集器(VEHs)为驱动无线电子系统提供了有前途的自供电资源。输出电压是评价电火花发生器性能的一个重要参数。考虑到工作条件与输出电压之间的非线性关系,提出了一种基于相关向量机的输出电压估计方法。采用振动频率、加速度幅值和负载电阻作为输入矢量,对收获电压进行建模,所得电压作为RVM的输出矢量。利用实验装置收集实际数据进行RVM建模和精度评估。结果表明,该方法能较好地估计出VEH的输出电压。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Output Voltage Estimation for Vibration Energy Harvesters Using Relevance Vector Mechines
By converting natural vibration into electricity, vibration energy harvesters (VEHs) provide promising self-power resources to drive wireless electronic systems. The output voltage is a vital parameter to evaluate the performance of a VEH. Considering the fact that relation between the operation conditions and the output voltage is nonlinear, a relevance vector machine (RVM) -based approach is proposed to estimate the output voltage. The vibration frequency, acceleration amplitude, and load resistance are employed as the input vectors so as to model the harvested electricity voltage which is the output vector of the RVM. An experimental set-up is used to collect real data for RVM modeling and precision evaluation. The results show that the proposed method is capable of estimating the output voltage for the VEH with good precision.
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