地质灾害监测设备太阳能高效供电技术研究

Research on Solar Energy Efficient Power Supply Technology in Geohazards Monitoring Equipment

通过对地质灾害监测设备供电情况的研究,提出一种基于太阳能的高效供电方法,即采用集成MPPT技术的充电管理芯片LT3652,自动实现最大功率点跟踪,从光伏电池抽取峰值功率,直接驱动负载,同时给能量储备单元充电,以保证在光伏电池输出功率为零时,维持负载工作。地质灾害监测供电系统选用了30W的光伏电池,12V/70Ah的铅酸免维护蓄电池,在四川省成都市区(光照强度为8100lux至87600lux)进行了测试,当负载为0.6W/5V时,太阳能供电系统最大充电电流为1.47A,设备可连续工作15个阴雨天,提高了地质灾害监测设备的长效性。

With the study of geological disaster monitoring equipment power supply, proposed a kind of method based on solar energy efficient power supply. Adopts charging management chip LT3652 integrated MPPT technology, which realize the maximum power point tracking automatically. This system extracted the peak power from the photovohaie panels driving load directly. At the same time charge for the energy reserves units, ensuring maintain work when photovoltaic panels output power is zero. Geohazards monitoring power supply system was tested in downtown of Chengdu in Sichuan province （light intensity 8100lux to 87600lux） with photovohaie cells 30W and lead-acid battery 12V/70Ah. When the load is 0.6W/SV, solar power system for a maximum charge current 1.47A, which can maintain the monitoring equipment works continuously 15 rainy days, improving the long-term of geohazards monitoring equipment.