Design And Study On An Intelligent Monitoring System For Distributed PV System

With the development of PV industry in our country, the distributed PV system will be animportant direction for future development of PV industry. However, the distributed PV systems arealways established dispersedly, it will require much human effort to complete the monitoring systemin traditional way. This article investigated the principle of PV station system and the situation of PVmonitoring system both at home and abroad. On the base of the investigation, a cost-effective, userfriendly and centralized PV monitoring system is designed in this paper. This system combines WSNwith Internet to build a data transmission channel to the cloud storage for the monitoring system andprovide two query methods for users. The main contents of this dissertation are:1) Based on Zigbee protocol, TinyOS system and CC2430chips, the wireless transmission ofthe PV system in monitoring system was achieved.2) Based on android smart phone, the data processing terminal which can upload data and becontrolled remotely was developed.3) A network processing unit was created by virtual hosting to process uploaded data andprovide information service. The unit adopts B/S architecture, so users can get PV systems’information conveniently by using browser or WeChat on cell phone.4) By us ing this system, the influence of the dust on PV modules caused by haze in Nanjingwas analyzed.Compared with other monitoring system, this system features easily installation, low cost, highprecision, convenience of data processing and well extensible.