Ship to shore connection — Reliability analysis of ship power system

Worldwide concern about air quality and greenhouse gas emissions has led to stricter emissions regulations in ship industry. The pollutant emissions in a port mainly come from the electric power generation system of the ships at berth. If cold ironing facilities are provided then the power supply comes from the shore electric power system through the proper interconnection. Many techno-economic studies have been carried out about the interconnection issues, but the reliability of the power system has not been adequately investigated. This will be analyzed in this paper taking into consideration the forced outage rate (FOR) of ship electric generators and shore connection, as well as the parameters which influence the FOR. The behavior of power generation system in different case studies is examined based on reliability indicators of the expected loss of load power (LOLP) and of the expected loss of load energy (LOLE).