文章设计了一种光伏控制器,采用STM32F103RBT6 单片机作为控制单元,采用降压式Buck变换电路作为控制主电路.控制器通过采集光伏板的输出电压和电流,计算输出功率,通过扰动观察算法保持充电功率的最大值,实现了最大功率点跟踪技术(Maximum Power Point Tracking,MPPT),提高光伏转换效率.文章加入温度检测,实现温度补偿,动态调整控制程序充放电阈值,防止蓄电池过充过放,提高蓄电池利用率.
Design of MPPT photovoltaic controller based on STM32
This article designs a photovoltaic controller that uses the STM32F103RBT6 microcontroller as the control unit and a buck converter circuit as the main control circuit.The controller collects the output voltage and current of the photovoltaic panel,calculates the output power,and maintains the maximum charging power through disturbance observation algorithm,achieving Maximum Power Point Tracking(MPPT)technology and improving the photovoltaic conversion efficiency.This article also incorporates temperature detection to achieve temperature compensation,dynamically adjust the charging and discharging threshold of the control program,prevent overcharging and discharging of the battery,and improve battery utilization.
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