摘要
针对散布在大范围水域中的无线传感器网络节点的供电问题,提出了太阳能电源系统的设计与实现方法。研究的系统主要由太阳能电池、充电控制器和蓄电池等组成。本文通过计算系统所需太阳能电池的功率和蓄电池的容量,使二者相匹配以保证系统的持续运行。为提高太阳能电池的利用效率,还提出了一种改进的扰动观察法来实现太阳能最大功率点跟踪控制。通过合理的硬件设计,实现了太阳能电池最大功率点跟踪和蓄电池充电精确控制。
Aiming at the power supply problem of Wireless sensor network nodes in Large-scale water,a method of designing a solar power supply system was presented,mainly including the photovoltaic array,charge controller and storage battery. Match the capacity of battery pack with the rating power of PV array by means of calculation to make sure non-stop running of system. This paper also proposed an improved perturb and observe method so that the utilization efficiency of the photovoltaic cell can be improved. The PV array output its maximum power and storage battery was controlled accurately through the rational design of hardware.
出处
《微计算机信息》
2010年第19期135-137,共3页
Control & Automation
关键词
水质监测
光伏电池
蓄电池
充电控制器
MPPT
Water quality monitoring
Photovoltaic cells
Storage battery
Charge Controller
MPPT
