Automatic Malfunction Warning System for Photovoltaic Energy System

Abstract

This paper presents the development of Automatic Malfunction Warning System (AMWS). The objective is to improve the performance of 5-kWp Grid-connected PV system with real time PC based monitoring system installed at Rajamangala University of Technology Suvarnabhumi Nonthaburi, Thailand. The system is able to measure electrical parameters and air condition with real-time display. The AMWS comprises of hardware and software. The software was developed by LabVIEW. The AMWS's function is to monitor important equipment in the PV energy system. If there is a malfunction or any detected faults, the AMWS would directly warn the operator of the PV energy system instantly. Results showed that the AMWS can complete programmed operation according to specified condition. The AMWS can send the right details and the cause of malfunction by SMS and E-mail every time the system did not work properly. The benefit of this system is that the operator can get the system to run properly and fix problems in a short period of time