DESIGN AND IMPLEMENTATION OF THE GRID-CONNECTED PV MONITORING SYSTEM

摘要

This paper presents the grid-connected monitoring system project that supports the Renewable Energy Research group of Rajamangala University of Technology Suvarnabhumi (RMUTSB) in Thailand. The objectives of this project are to measure and monitor the performance of 5 kW (a-Si) grid-connected PV systems that is already installed for a year. It can measure monitoring and display the real time data as shown below. 1) PV array voltage, current and power. 2) Grid voltage, current and power. 3) Energy to and from grid. 4) Solar irradiance, wind speed and wind direction. 5) Ambient temperature, cell temperature and relative humidity. This project is the PC-based monitoring system. The monitoring software was developed using LabVIEW 8.0.