基于单片机的光伏发电数据采集系统的设计

AbstractAs a kind of renewable energy,photovoltaic power generation is one of therecent research hotspots.Small-scale photovoltaic power plants have the advantagesof small investment,fast construction,small footprint,and large policy support,andhave broad application prospects.However,at the same time of construction,due todesign reasons and geographical factors,most small photovoltaic power plants arenot equipped with a data monitoring system,and cannot perform real-timemonitoring and analysis of the operation of the power station.Based on the abovesituation,this paper designs the design of a photovoltaic power generation dataacquisition system based on a single-chip microcomputer.This paper presents a design of a photovoltaic power generation dataacquisition system based on a single chip microcomputer.The program uses 51single-chip microcomputer chips as the core of system calculation and control,anduses C language as the development platform to realize the collection of importantparameters of photovoltaic power plants.The thesis described the system's softwareand hardware design process in detail.The hardware mainly consists of peripheralDS18B20 chip,BH1750FVI chip,linear Hall current sensor,linear Hall voltage sensor,OPA388 operational amplifier chip,TLC549 chip and SIM900A as temperatureacquisition module,light intensity acquisition module,current acquisition module,voltage acquisition module,respectively,A/D conversion module andcommunication module.The software realizes the collection and calculation ofimportant parameters of the photovoltaic power station,and sends the data to thenetwork through the RS485 protocol and GPRS,and displays the data on the uppercomputer.Keywords:MCU,data sampling,communication,sensor