Investigation of processes in the ship's power system containing a rectifier under different control

Abstract

The diversity of seagoing ships and marine facilities is increasing. The power of the ship's power systems is also increasing, especially for ships with electrical propulsion systems. High voltage and DC distribution networks are used to increase their efficiency and stability. The presence of rectifiers degrades the power quality, which disrupts the operation of all electrical equipment. An accurate mathematical model of a ship's power system containing an electronic rectifier is proposed. With the help of the model, different static and dynamic modes of operation of the system caused by different control and disturbance influences are studied. The modes are tested in phase and PWM control of the rectifier. Some of the results of the research are presented, and the frequency spectra of the quality of electricity obtained by FFT are shown.