Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
Title Development of Fault Diagnosis Program for reducing Power Loss Cost of the Photovoltaic Power System using Actual Operation Data
Authors 조경희(Kyeong-Hee Cho) ; 김응상(Eung-Sang Kim) ; 이동규(Dong-Kyu Lee) ; 이문수(Munsu Lee) ; 박준호(June Ho Park)
DOI https://doi.org/10.5370/KIEE.2020.69.11.1682
Page pp.1682-1688
ISSN 1975-8359
Keywords PV Measuring Data Analysis; PV Fault Diagnosis; PV O&M Program; PV Field Test
Abstract Countries are looking for a pathway toward a sustainable transition from fossil-based to less or zero-carbon sources in energy sector in order to reduce its impact from climate change. Among different renewable resources, photovoltaic power system (PV) is considered as one of the most promising technology, which has the biggest potential for increasing renewable energy. However, its profit can be varied depending on operation and management, which possibly causes performance degradation and safety issues due to faults. Therefore, we have collected actual operation data from the PV monitoring system which located in Changwon, Gyeong-nam province during one year. While most of the PV system has security function which is limited to its inverter protection, in this study, based on fault data software program is developed for fault diagnosis in order to increase robustness of the PV system and minimize operation cost. Also, the program comprises machine learning algorithm based on fault data to classify its types of faults.
It also presents economic loss of each PV module considering mean time to repair (MTTR) occurred from the event of faults in the PV system. As a result, the program helps faster fault diagnosis of the PV system and decreasing overall operation cost for the system operator.