Ricerc@Sapienza

Considering the highest power demand by Ship to Shore (STS) cranes in pier E at the port of Long Beach, designing a proper control system can harness the peak load increasing. In this paper, tw o strategies have been used for the peak load shaving. First, demand side management (DSM) in order to peak power demand minimization by duty cycle coordination between STS cranes based on PSO algorithm and in the second part utilization of Flywheel Energy Storage System (FESS) to make a power balance between generation and demand side.

Most of the power demand at Container Terminals (CT) is related to Ship to Shore (STS) cranes. These cranes work simultaneously together for loading and unloading container. This issue causes the peak demand increase significantly. Considering the STS group crane's activity to move containers (from ship to shore and vice versa), finding the best delay time between STS cranes can play an important role to reduce the total power demand. The peak shaving strategy which has been used in this paper is Demand Side Management (DSM).