小功率独立光伏发电系统研究  

Study of Low Power Stand Alone PV Power System

作　　者：张超[1] 张学众[1] 张志宏[1] 张竑基 

机构地区：[1]河南省郑州供电公司,河南郑州450052

出　　处：《低压电器》2010年第14期19-23,共5页Low Voltage Apparatus

摘　　要：提出了一种采用推挽输出的新型光伏独立发电主电路拓扑结构,系统包括光伏阵列、CUK充电器、蓄电池、升压变换和逆变部分。CUK充电器采用了基于蓄电池电流控制的充电策略,可以在短时间内使蓄电池达到充满状态;升压变换拓扑采用推挽结构,使由蓄电池输出的24V直流电,上升到符合逆变需要的380V(母线电压)。该系统采用闭环控制,试验结果表明,该方法简单有效,灵活性强,能够保证系统的稳定运行。A novel stand alone photovoltaic system topology was proposed,in which push-pull output circuit was adopted. The system was consisted of photovoltaic array,CUK charger,battery,Boost transformation and inverter. Charging strategy based on the battery current regulation principle was adopted in CUK charger,which made that a 100% battery state of charge could be reached in shorter time. Boost topology used push-pull structure,so that the output from the battery of DC 24 V rose to 380 V to meet the needs of inverter （bus voltage）. Closed-loop control was adopted in the system,and experiment results showed that the method was simple,effective and flexible,and was able to ensure the stable operation of the system.

关 键 词：太阳能 蓄电池 逆变器 

分 类 号：TM615[电气工程—电力系统及自动化]