智能型太阳能充电电路的设计.pdfVIP

第 38 卷增刊 (Ⅱ) 东南大学学报 (自然 科学版 ) Vo.l38 Su(Ⅱ) 　 2008 年 11月 JOURNALOFSOUTHEASTUNIVERSITY(NaturalScienceEdition) 　 Nov.2008 　　　　　　 冯显争　　李训铭 (, 2 10098) :针对油田无线示功仪及其无线网络节点的供电问题, 用开关电源技术实现了太阳能组 件电压变化或负载波动时自动调节占空比的供电网络, 运用自动控制技术设计了过电压保护电 路、过放电保护电路与应急充电电路等, 用充电管理技术实现了锂电池充电及电压调节电路, 根据光敏传感器输出差值比较电压设计了太阳自动跟踪控制器.该太阳能充电电路思路新颖,在 应用上是一种突破,工作效率达到 92%,输出电压精度为 98%, 系统运行 一年来,工作性能安全、 稳定.应用证明具有较高的实用和推广价值. :太阳能;供电网络;充电;锂电池;自动跟踪 :TP202 　　:A　　:1001-0505 (2007 )(Ⅱ)-0194 -05 Designofintelligentsolarchargingcircuit FengXianzheng　　LiXunming (CollegeofElectricalEngineering, HohaiUniversity, Nanjing210098, China) Abstrac:tAmiingattheower-su ly roblemofthewirelessdynamometersanditswirelessnet- worknodesinoilfield,sautomaticadjustmentofthedutycyclewasaccom lishedwhenthevoltage ofsolarenergycom onentsorloadchanged, andtheowersu lynetworkwasachievedbyusing switchingowertechnology.Theover-voltagerotectioncircu,itover-dischargerotectioncircuit andemergencychargingcircuitweredesignedbasedonautomaticcontroltechnology.Lithiumbat- terieschargingcircuitsandvoltageregulatorcircuitswererealizedbychargemanagementtechnolo- gy.Voltagedifferencecom arisonwasroducedby hotosensitivesensor,s andautomaticsolar trackingcontrollerwasdesigned.Thesolarchargercircuitisinnovativeindesignideasanda lica- tion.sTheworkefficiencyreaches92%, andoututvoltagerecisionachieves98%.Thesystem erformanceisstableandsafeovertheastyea.rTheresultshasrovedthatthiscircuitisvaluable in racticala licationandworthoularizing. Keywords:solarenergy; owersu lynetwork;charge;ithiumbatteries;automatictracking , , ,,,.,, 、, , ., , , . 、,.:① , .② , --.③、 CMOS, 、.④、,、 .⑤ ,,. 　:2008-10 -12. 　: (1977— ), , , fengtao981@163.com;(), , ,