International Science and Technology Journal

The sources and transient effects of electrical variables and harmonic distortion in ships electrical power networks, and the parameters and methods of characterization, were presented and discussed. Furthermore, the paper investigates, discusses and compares relevant issues by standards defined by marine classification institutions applicable on board ships, taking into account the standard setting of similar international energy systems. The conditions used in the operation of alternating current generators that intended to work in parallel with the ships' board, also been discussed. The proposed solution is by adding a multi-level voltage inverter that works in parallel with the network. A comparison will be made between the types of multi-level inverters. Key words: PSQ, Transients, shipboard power system, marine classification institutes, harmonics.