Synchronous Reference Frame Theory Control for Current Harmonics Suppression in Ship Power System Using Shunt Active Power Filter

Today, the challenge of enhancing and maintaining the electrical power quality is growing along with the expansion of nonlinear loads employed in ship power systems. The resulting deterioration may cause problems with electrical equipment operation and overall system instability. Different strategies, such as the use of active filters, passive filters, or other methods, can be used to avoid these effects. The goal of the current study is to reduce total harmonic distortion (THD) at the PCC (point of common coupling) of non-linear loads by implementing a shunt active power filter (SAPF) with a synchronous reference frame theory based control system used. The disruption in the system with and without the use of SAPF is analyzed and quantified through the proposal of a mathematical model of the ship's electrical power system and simulation of various case studies.