Modeling of electric power quality problems in bulk carriers with Simulink

The concept of power quality in ship electrical systems has become more important with the widespread use of electronic control systems and electrical drive systems. The low power quality affects the ship's electrical network performance, as well as the efficient use of energy, cruise safety and life safety at sea. In this thesis, the concept of electrical power quality on a bulk carrier and a passenger ship accident with significant power quality disturbances that may arise from problems in the electrical system are examined. Possible power quality problems that may have occurred during this ship accident were modeled through the MATLAB / Simulink program and the extent to which sinusoidal waves deviated from what they should be was revealed as power quality disturbances, and it was aimed to emphasize the importance of the concept of electrical power quality in ships. The failure of the harmonic filters during the accident, which resulted in a blackout as a result of the explosion of the harmonic filters installed for the prevention of harmonic power disturbance on the passenger ship, was adapted to a bulk carrier, fictionally, and the cases with and without the harmonic filter were analyzed. In addition, possible voltage spikes and drops due to short circuit of the terminals of the capacitors in the filters are investigated. In this thesis, equipment to ensure power quality in ship electrical systems has been examined, it has been concluded that possible malfunctions may cause ship accidents, and additional improvements and changes that can be made in order to avoid such accidents are included.