机电工程技术2024，Vol.53Issue(2)：111-115,5.DOI:10.3969/j.issn.1009-9492.2024.02.024
基于STM32F373的光伏组件IV特性测试系统
PV Module IV Characteristic Test System Based on STM32F373
摘要
Abstract
To accurately and conveniently measure the IV characteristic curve of photovoltaic modules,a photovoltaic module IV characteristic testing system based on STM32F373 is designed,which can measure open circuit voltage,short circuit current,IV curve,PV curve and so on.This system is composed of a current control unit,a signal acquisition unit,a software processing unit,a communication unit,an upper computer display unit and so on,and it adopts an electronic load circuit,which uses the STM32F373 single-chip DAC output to adjust the constant current current value.At the same time,it collects the output voltage value of the photovoltaic cell,performs Kalman filtering and curve fitting on the collected data,and generates IV and PV curves for voltage,current,and power values to be displayed on the TFT color screen finally.The system can also remotely transmit the data to the PC for data analysis and curve observation.The results show that the curves collected by using the system are accurate,fast,and have good performance,the time to collect an IV curve is only 1 s,and the measured voltage and current error is less than 1%.The system is small in size and easy to carry,and has a lithium battery inside,which can be charged and used outdoors.关键词
STM32F373/光伏组件/IV特性Key words
STM32F373/photovoltaic module/IV characteristic分类
信息技术与安全科学引用本文复制引用
郑巍,艾学忠,蒙永龙,王明达,汪冬冬..基于STM32F373的光伏组件IV特性测试系统[J].机电工程技术,2024,53(2):111-115,5.基金项目
吉林省科技发展计划项目(20190302063GX) （20190302063GX）
