生态物联网节点的风光混合能量变换系统设计

为使物联网传感器节点长期用于生态环境监测,设计了一种风光混合微能量变换系统提供节点持续电能.设计了光源自动跟踪和最大功率跟踪两种控制电路,最大程度地进行光伏能量转换;设计低输入电压的能力的升压电路以提高在低风速情况的能量采集.分析了风光混合系统电源管理的工作方式,理论推导传感节点和双轴电机工作所需能量管理的理论条件.实验测试结果表明：研究的混合微能量变换系统能够精确检测光照强度,能采集光能和风能并实时充电存储,节点可以持续工作,采集数据并实时远距离无线传输,能够满足林业生态环境的远程监测功能要求.

Design of wind-solar hybrid energy conversion system for ecological environment IoT node

To make Internet of things （IoT） sensor nodes for long term ecological environment monitoring, a kind of wind-solar hybrid micro energy conversion system is designed for providing sensor nodes with continuous powers. Two control circuits of automatic light tracking and maximum power tracking are designed for maximum solar energy conversion. The low input voltage boosting circuit is designed to increase energy collection in the case of low wind speed. Working mode of power management of wind-solar hybrid system are analyzed, energy management theories of sensor nodes and two-axis motor continuous work are deduced. Experimental results show that light intensity can be detected accurately by the hybrid micro energy conversion systems, solar and wind energy are real time collected and stored at the same time, sensor nodes can continuously operate, collect datas and realizes real-time long distance wireless transmission, which meets the requirement of remote monitoring for forestry ecological environment.