| 光伏充电系统的设计与研制 |
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| 引用本文： | 陈爱龙,胡天友,于慧君,宋涛松.光伏充电系统的设计与研制[J].实验室研究与探索,2011,30(6). |
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| 作者姓名： | 陈爱龙 胡天友 于慧君 宋涛松 |
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| 作者单位： | 电子科技大学机械电子工程学院,四川成都,611731 |
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| 基金项目： | 总装备部预研基金项目(G02010801PJ087DZ0201) |
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| 摘 要： | 根据光伏阵列的输出特性与蓄电池充电特性,设计了一套具有最大功率点跟踪的光伏充电系统。该系统以dsPIC30F5011单片机为控制器,采用Cuk电路为充电主回路,根据蓄电池端电压对蓄电池采用四阶段充电控制策略。在欠电压充电阶段,采用基于PI调节的涓流对蓄电池充电;在快速充电的阶段,使用基于电导增量法的最大功率跟踪算法对蓄电池充电;在过冲与浮充阶段,使用基于PI调节的带有温度补偿的恒压充电。试验结果表明,最大功率点跟踪能快速跟踪外界环境的变化,并稳定工作在最大功率点,提高光伏电池的使用效率;过冲和浮充电压精度高,能延长蓄电池使用寿命。
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| 关 键 词： | 最大功率点跟踪 光伏充电 电导增量法 |
Design and Development of Photovoltaic Charging System |
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| CHEN Ai-long,HU Tian-you,YU Hui-jun,SONG Tao-song.Design and Development of Photovoltaic Charging System[J].Laboratory Research and Exploration,2011,30(6). |
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| Authors: | CHEN Ai-long HU Tian-you YU Hui-jun SONG Tao-song |
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| Institution: | CHEN Ai-long,HU Tian-you,YU Hui-jun,SONG Tao-song(School of Mechatronics Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China) |
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| Abstract: | A photovoltaic charging system with maximum power point tracking was designed according to the output characteristics of photovoltaic(PV) array and charging characteristics of battery.The system is controlled by the single chip of dsPIC30F5011 and adopts Cuk circuit as its main charging circuit,and uses four-state charging control strategy according to the terminal voltage of battery.In the under-charge stage,the battery is charged with trickle current based on PI regulator;in the fast-charge stage,the batt... |
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| Keywords: | maximum power point tracking(MPPT) photovoltaic charging incremental conductance algorithm |
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