地质灾害监测设备太阳能高效供电技术研究
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摘要
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 photovoltaic 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 photovoltaic cells 30W and lead-acid battery 12V/70Ah.When the load is 0.6W/5V,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.
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 photovoltaic 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 photovoltaic cells 30W and lead-acid battery 12V/70Ah.When the load is 0.6W/5V,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.
引文
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[14]WANG Chang-Chunl,WU Ming-Chuan,OU Sheng-Yuan.Anal-ysis and research on maximum power point tracking of photo-voltaic array with fuzzy logic control and three-point weightcomparison method[J].SCIENCE CHINA Technological Sci-ences,2010,53(8):2183-2189.
[2]许强.汶川大地震诱发地质灾害主要类型与特征研究[J].地质灾害与环境保护,2009,20(2):86-93.
[3]张耀明.中国太阳能光伏发电产业的现状与前景[J].能源研究与利用,2007(1):1-6.
[4]朱俊杰,陈程,李智.新型的单相光伏并网发电装置[J].自动化仪表,2010,31(8):41-44.
[5]李蔚.我国太阳能光伏产业发展趋势探讨[J].电源技术,2009,33(8):742-743.
[6]时剑,单春贤,童红.MCU控制的太阳能电池最大功率跟踪控制器[J].电力电子技术,2008,42(11):45-46.
[7]范长城,王勇,植勇.基于太阳能电池板的直流不间断电源的设计[J].电源世界,2008,10(11):44-46.
[8]P R Mishra,A K Pandey,J C Joshi.Theoretical analysis ofintegrated photovoltaic system and design of an optimized bat-tery voltage regulator[J].Solar Energy Materials and Solar Cells,1995:159-174.
[9]侯艳丽.太阳能电池组件专用材料研发进展[J].阳光能源,2009,1(2):36-37.
[10]Linear Integrated Products.LT3652 Data Sheet[EB/OL].2009.www.linear.com.
[11]秦怀平,钟渝,马永开.草原无电用户太阳能供电可持续问题的研究[J].软科学,2010,24(7):138-140.
[12]张金花.太阳能光伏发电系统容量计算分析[J].甘肃科技,2009,25(12):57-60.
[13]杨健,杜银昌,刘树慰.太阳能供电系统在海上平台的应用[J].中国造船,2007,25(11):155-161.
[14]WANG Chang-Chunl,WU Ming-Chuan,OU Sheng-Yuan.Anal-ysis and research on maximum power point tracking of photo-voltaic array with fuzzy logic control and three-point weightcomparison method[J].SCIENCE CHINA Technological Sci-ences,2010,53(8):2183-2189.
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