TY - JOUR ID - 30156 TI - Detailed Analyses of the Failure and Repair Rates of Wind and Solar- PV Systems for RAM Assessment JO - The International Conference on Electrical Engineering JA - ICEENG LA - en SN - 2636-4433 AU - El-Metwally, M. AU - EL-Shimy, M. AU - Elshahed, M. AU - Sayed, A. AD - Dept. of Electrical Engineering, Cairo University, Giza, Egypt. AD - Professor, Dept. of Electrical Power and Machines, Ain Shams, Cairo, Egypt. Y1 - 2018 PY - 2018 VL - 11 IS - 11th International Conference on Electrical Engineering ICEENG 2018 SP - 1 EP - 16 KW - failure rate KW - repair rate KW - Reliability KW - photovoltaic (solar-PV) systems KW - wind energy systems KW - Reliability, Availability, and Maintainability (RAM) DO - 10.21608/iceeng.2018.30156 N2 - This paper presents an extensive survey of the failure, and repair rates of wind, and solar- PV energy conversion systems. Various practical layouts of these systems are presented considering various operation modes (i.e. off-grid, and grid-connected), and load types (i.e. deferrable, and non-deferrable). The presented layouts of wind and solar-PV energysystems cover various energy solutions for various operation modes, and load types. The overall structure of each system is separated into a set subsystems, then each subsystem is separated into a set of subassemblies or items. Considering repairable, and nonrepairable items, the analyses of failure, and repair rates are then performed for identifying the reliable performance, and weak items. The confidence of the results is increased by collecting huge amounts of data. These data cover various configurations, and meteorological conditions (i.e. stress factors) are analyzed and represented by their confidence median values. Salient conclusions are reached from the analyses of the collected data. The presented results are essential for performing a detailed Reliability, Availability, and Maintainability (RAM) of wind, and solar-PV systems. In addition, they are useful in identifying the weak items, for setting appropriate maintenance plans forincreasing the overall reliability of the considered systems. UR - https://iceeng.journals.ekb.eg/article_30156.html L1 - https://iceeng.journals.ekb.eg/article_30156_2439a4c60f34056b4d41006131d75752.pdf ER -