Research And Application Of PV Monitoring System Based On Wireless Sensor Network

Photovoltaic technology have been developed rapidly under the condition of currentenergy crisis. Along with the scale of the solar power station in China began to build and putinto operation, photovoltaic power station must be equipped with automatic operation and theperfect function of the monitoring system.Communication is the key link ensure thatmonitoring system transmits messages and is efficient. And communication network systemlargely determines the topology of the monitoring system, therefore, it is very necessary thatwe thoroughly research and test the scheme of communication in monitoring system design.At present the monitoring technology of PV power station is still in development,communication system in which the vendor is self-contained. In general speaking, singlemeans of communication、the lack of network management、not high technical level、lowlevel of integration, difficult to carry the growing business needs, this topic research is how touse wireless network information technology real-time monitoring PV power system status.In this paper, the various sub-system of PV power system distributed in different regions,it’s also difficult to layout cable between sub-systems, to achieve the same monitoring,namely that we proposed a remote monitoring method based on wireless sensor network. Thispaper introduces basic principle、system development process and analysis of experimental ofremote monitoring system based on ZigBee and GPRS protocol. This paper uses wirelesssensor network advantages with flexible networking、convenient、etc, to complete dataacquisition and transmission capabilities of PV system.Based on the above mentioned adverse factors of cable photovoltaic monitoring system,propose solutions. Summed up the important work of this paper are as follows:(1) theresearch of user side grid power system;(2) the research of wireless sensor network ZigBee,GPRS and network technology;(3) the research of wireless sensor network applied to userside grid power system.In the end I do the specific experimental analysis for the ZigBee and GPRS wirelessmonitoring system, the ZigBee and GPRS as a new type of wireless communicationtechnology, is suitable for using in a variety of photovoltaic grid-connected power station.Itcan effectively reduce costs, improve system reliability and reduce maintenance workintensity. The experimental results and experimental data coincides with cable monitoringsystem, it proves that ZigBee and GPRS wireless monitoring system is correct.