有限周期环MPPT控制型光伏电池充电器的设计  

Design of photovoltaic battery charger for maximum power point tracking control of limit cycle operation

作　　者：马洪勃[1] 

机构地区：[1]沈阳工程学院自控系,辽宁沈阳110136

出　　处：《电源技术》2012年第12期1840-1842,1865,共4页Chinese Journal of Power Sources

摘　　要：为了最大限度的实现光伏电池效率的转换,而采用太阳能输出电流周期性的自动跟随基准指令电流,即用有限周期环最大功率点跟踪控制(有限周期环MPPT控制)技术来达到最大输出功率,介绍了其技术原理、设计方法和实际电路的测试结果。通过充电器的实践证明,本充电器具有电路简单,控制精度高,充电效率高,实用性强等优点。其最主要的特点就是可以在不同的光照条件下完全采集光伏电池能量。另外,本电路还可以作为大容量直流系统的个体能量供给源。In order to realize the maximum conversion efficiency of photovoltaic cells, the solar energy output current should follow the instructions current benchmark periodically and automatically, namely, the limited ring cycle of maximum power point tracking control （limited cycle ring MPPT control） technology was used to achieve the maximum output power. The technical principle, design methods and practical test results of circuit were introduced in this paper. The practice shows that the charger with simple circuit has high control accuracy, high charging efficiency and excellent practicability. The main feature of the charger is to harvest the energy of photovoltaic cells completely in different light conditions. In addition, the circuit can act as a large-capacity DC system of individual energy supply source.

关 键 词：有限周期环 最大功率点跟踪控制 光伏电池 充电器 原理图 波形图 设计方法 实测结果 

分 类 号：TM615[电气工程—电力系统及自动化]