一种基于电导增量改进算法光伏充电实现策略  

Implementation Strategy of Photovoltaic Charging Based on the Improved Incremental Conductance Algorithm

作　　者：丁中樑[1] 徐恒 杨涛[1] 

机构地区：[1]成都大学实验技术中心,四川成都610106 [2]新都供电局,四川成都610500

出　　处：《电力电子技术》2011年第10期68-70,共3页Power Electronics

摘　　要：根据太阳能光伏电池的输出特性与蓄电池的充电特性,利用dsPIC30F5011设计了一台能进行最大功率点跟踪(MPPT)的光伏充电系统,在快速充电阶段,利用基于电导增量的改进算法对光伏阵列进行MPPT,以最大功率对蓄电池充电;在过充和浮充阶段,利用带有温度补偿的电压PI调节算法实现过充和浮充。实验与仿真结果表明,改进的MPPT算法能提高系统MPPT效率,带温度补偿的浮充能延长蓄电池的使用寿命。A photovoltaic （PV） charging system with maximum power point tracking （MPPT） based on dsPIC30F5011 is designed,according to the output characteristics of PV array and charging characteristics of battery.The improved incremental conductance （INC） algorithm is used in fast-charge stage to track maximum power point （MPP） for charging the battery with maximum power.PI regulator algorithm with temperature compensation is applied to realize constant voltage charge in the over-charge and float-charge stage.Experimental and simulation results indicate that the improved method can improve the efficiency of MPPT, and the float-charge with temperature compensation can extend the lifetime of battery.

关 键 词：光伏充电 最大功率点跟踪 电导增量改进算法 

分 类 号：TM615[电气工程—电力系统及自动化]