A logical-probabilistic model for analysing the reliability of wind – diesel generator autonomous hybrid power system

A wind-diesel hybrid system involves two generating sources, diesel generators and wind turbines. They are designed to increase the capacity and reduce the cost and environmental impact of generating electricity in remote locations that are not connected to the electricity grid. Wind-diesel hybrid systems reduce dependence on diesel fuel, which creates pollution and is expensive to transport. A paper, a logic-probabilistic model based on a fault tree is developed to analyze the reliability of an autonomous complex system (wind-diesel plant) taking into account the characteristics of generating sources and operating conditions. A calculation of the reliability of a hybrid plant located in the south-eastern part of Bulgaria was made.