WSN节点中能量管理方案设计  

Designing solar lithium battery management system in wireless sensor nodes

作　　者：朱舟[1] 余绍俊[2] 于勃[1] 易卫东[1] 

机构地区：[1]中国科学院大学电子电气与通信工程学院,北京100019 [2]昆明学院信息技术学院,昆明650214

出　　处：《电子测量与仪器学报》2015年第12期1798-1805,共8页Journal of Electronic Measurement and Instrumentation

基　　金："十二五"农村领域国家科技计划(2012BAJ24B01)项目

摘　　要：为了使无线传感器网络节点具有持续稳定的能量供给,设计实现了一种太阳能锂电池系统。系统利用改进的扰动观察法作为太阳能电池板最大功率追踪技术,追踪的效率能较稳定地维持在98%左右。系统利用MSP430输出的PWM波形控制由MOS管组成的3路开关,对系统的能量流动进行动态路径管理,采用动态路径管理技术使太阳能电池板实际输出功率的利用率提高了16%左右。系统利用电路测量的历史数据预测锂电池的状态,能有效防止锂电池过充过放。In order to make the wireless sensor network node has steady energy supply,a solar lithium battery system is designed and implemented. The system uses an improved perturbation and observation method as the solar panel maximum power point tracking technology,the efficiency of the tracking is stable maintained at around 98%.The system uses the PWM produced by MSP430 to control the three-way switch which is composed by MOS tubes,which implement dynamic power path management,dynamic path management technology enables the utilization of actual power output of solar panels increased by about 16%. The system uses historical data generated by the measurement circuit to predict the state of lithium battery,which can effectively prevent overcharge and over discharge of the lithium.

关 键 词：能量采集系统 动态电源路径管理 软硬件协同设计 

分 类 号：TN710[电子电信—电路与系统] TM912[电气工程—电力电子与电力传动]