基于ATmega88的光伏发电控制与计量  

Photovoltaic Power Generation Control and Measurement Based on ATmega88

作　　者：李双双[1] 曾野[1] 陆寅[1] 

机构地区：[1]安徽大学电气工程与自动化学院,安徽合肥230601

出　　处：《仪表技术与传感器》2014年第4期69-70,110,共3页Instrument Technique and Sensor

摘　　要：针对光伏发电系统电量控制与计量的需要,提出了一种基于ATmega88的小型光伏发电控制与计量系统的设计方案。该方案采用ATmega88单片机及其外围电路组成主控电路,利用最大功率跟踪环节对蓄电池进行充放电管理和负载控制,看门狗电路对系统每2 s唤醒一次,提高了系统工作的可靠性和稳定性。系统定时对太阳能电池电压和电流进行采样,并通过计算得到太阳能电池的功率和发电总量。经测试,系统各项指标正常,运行良好。To meet the demand for power control and measurement of photovohaic power generation system, this paper pro- posed a design scheme of small photovohaic power measurement and control system based on ATmega88. The scheme used AT- mega88 MCU and its peripheral circuit as the main control circuit, managed the battery charging and discharging and controls load by the MPPT,watchdog circuit wakes-up the system once every 2 s. By doing these can improve the reliability and stability of the system. The solar cell voltage and current were timing sampled, and achieved the power and the power output of solar cell by calcu- lating. The testing results show the system indicators are normal, it works well.

关 键 词：光伏发电 ATMEGA88 蓄电池管理 电能计量 

分 类 号：TM615[电气工程—电力系统及自动化]