태양광전원의 유지보수용 시험장치 제작 및 분석에 관한 연구

A Study on Development and Analysis of Test Device for Maintenance in PV System

With the environmental factors such as long period exposure, pollution and corrosion, the degradation phenomena in PV system, which are hot-spot, yellowing, damage of bypass diode, could have been occurred and the operation efficiency in PV system could have been deteriorated. And also, PV system has been influenced by weather conditions like temperature and solar radiation. To solve these problems, the optimal operation method of performance improvement in PV system is required. This paper proposes a maintenance system of PV system to analyze and diagnose output characteristics of PV modules in order to improve the operation efficiency of existing PV system. It is composed of 4 sections such as the PV module, measurement device, artificial distribution system and monitoring and control system. By performing simulation on the operation characteristics of PV module under various conditions, it is confirmed that proposed system will be based on the maintenance industry of the PV system.