|本期目录/Table of Contents|

[1]董建怀*,汤碧玉.无线传感器节点太阳能自适应收集环路及控制策略[J].厦门大学学报(自然科学版),2019,58(04):589-594.[doi:10.6043/j.issn.0438-0479.201805017]
 DONG Jianhuai*,TANG Biyu.Adaptive solar energy harvesting circuit and control strategies for wireless sensor network nodes[J].Journal of Xiamen University(Natural Science),2019,58(04):589-594.[doi:10.6043/j.issn.0438-0479.201805017]
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无线传感器节点太阳能自适应收集环路及控制策略(PDF/HTML)
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《厦门大学学报(自然科学版)》[ISSN:0438-0479/CN:35-1070/N]

卷:
58卷
期数:
2019年04期
页码:
589-594
栏目:
研究论文
出版日期:
2019-07-28

文章信息/Info

Title:
Adaptive solar energy harvesting circuit and control strategies for wireless sensor network nodes
文章编号:
0438-0479(2019)04-0589-06
作者:
董建怀1*汤碧玉2
1.福建江夏学院电子信息科学学院,福建 福州 350108; 2.厦门大学信息科学与技术学院,福建 厦门 361005
Author(s):
DONG Jianhuai1*TANG Biyu2
1.College of Electronics and Information Science,Fujian Jiangxia University,Fuzhou 350108,China; 2.School of Information Science and Engineering,Xiamen University,Xiamen 361005,China
关键词:
无线传感器网络 太阳能 收集 最大功率点跟踪电路 自适应算法
Keywords:
wireless sensor networks(WSN) solar energy harvesting maximum power point tracking circuit adaptive algorithm
分类号:
TN 86
DOI:
10.6043/j.issn.0438-0479.201805017
文献标志码:
A
摘要:
针对无线传感器网络(WSN)节点太阳能收集效率低的问题,提出了一种WSN节点的太阳能高效收集方案,最大功率点跟踪(MPPT)电路由微功耗的可控制光伏电压的闭合环路实现,初始功率跟踪点由通过扫描光伏功率曲线的幅值搜索算法提供,利用简化的梯度上升算法来跟踪随环境变化的最大功率,使其最大化地传输到充电电池.实验结果表明,自适应系统的能量转换效率高达86.7%,在光伏电压低至0.8 V的超低光照强度下仍能有效地收集能量,能有效延长WSN节点的生存周期,可适用于其他应用场合的微小功率太阳能收集.
Abstract:
To solve the problem of the low efficiency of solar energy harvesting in wireless sensor network(WSN)nodes,we propose an adaptive solar energy harvesting system for WSN nodes.The maximum power point tracking(MPPT)circuit is implemented by a closed loop circuit that can control the photovoltaic voltage with micro power consumption.The initial operating point is provided by the amplitude search algorithm of the scanning power curve.The simplified gradient-ascend algorithm tracks the maximum power that varies with the environment and maximizes energy transfer to the battery.Experimental results show that the energy-conversion efficiency of the adaptive system increases to 86.7%.Furthermore,energy can continue to be harvested effectively under the ultra-low light intensity with the photovoltaic voltage down to 0.8 V,effectively prolonging the lifetime of these WSN nodes.Our proposed strategy is suitable for small power solar energy harvested in other applications.

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备注/Memo

备注/Memo:
收稿日期:2018-05-17录用日期:2019-01-12
基金项目:福建省自然科学基金(2015J01653)
*通信作者:411975655@qq.com
更新日期/Last Update: 1900-01-01