Research Of The Photovoltaic Convergence Monitoring System Based On ARM

In recent years, with the development of new energy industry, especially the photovoltaicindustry has achieved rapid development.Photovoltaic power generation has characteristics ofno pollution, easy maintenance, and inexhaustible resources and resources are widelydistributed,In the photovoltaic power generation system, however, need a huge number ofcomponents of photovoltaic cells through the series combination to achieve the desiredvoltage and current values,How to effectively monitoring the convergence work of thephotovoltaic array, is one of the photovoltaic power generation system must be solved.Analysis and research on the composition of the battery components and battery array ofphotovoltaic power generation system, photovoltaic power generation system in the cell arrayto the effective monitoring of the convergence work as a starting point, according to the actualneeds of the photovoltaic power generation system, research andacquisition and MonitoringSystem designed ARM.based photovoltaic communication.First of all, through the development of photovoltaic technology and embeddedtechnologies are discussed, leads to the importance of the convergence work of monitoring ofphotovoltaic cell array of the photovoltaic power generation system. Actually givenparameters analyzed equivalent circuit model of the components of photovoltaic cells to drawvolt-ampere characteristics of components of photovoltaic cells, then analysis of thecomposition of the photovoltaic power generation system and the necessity of photovoltaic，The overall program is formulated.Secondly, research and design of communication acquisition unit and the convergence ofcurrent acquisition unit.The hardware design of the communications acquisition unit is basedon the ARM core,The software system uses the Linux multitasking operating system,Andthrough the study of process scheduling,The establishment of the system migration and cross.development platform, multi.threaded applications designed to improve the responsespeed of the communications acquisition unit.System requirements analysis, research anddesign of photovoltaic convergence acquisition unit, select a reasonable device to achieve theconvergence of the acquisition unit hardware and software design, and static characteristics ofthe program algorithm to improve convergence of the acquisition unit.Finally, according to the actual engineering requirements, choose the means ofcommunication and data exchange between each unit, then establishment of the Modbuscommunication protocol, design the computer applications, debugging and to achieveconvergence acquisition unit and communication acquisition unit,computer monitoringsystem monitoring and management branch current and voltage of the photovoltaic array.