The paper examines possible directions for improving power quality assurance tools by achieving their multifunctionality, controllability, and efficiency, with the aim of enhancing their performance while considering the circuit and operational specifics of integrated ship electrical power systems with semiconductor propulsion complexes. To address the challenges posed by increasing harmonic distortions and reactive power in such systems, one- and two-stage versions of system-controlled filter-compensating devices are proposed and thoroughly investigated. These devices are specifically designed to enable full reactive power compensation while significantly reducing voltage and current harmonic distortions, thus ensuring improved power quality and system reliability in ship electrical power systems with semiconductor propulsion complexes. The proposed modeling approach provides a comprehensive framework for analyzing and comparing the impact of controlled filter-compensating devices on the integral harmonic distortion coefficient of voltage across systems with various types of input rectifiers incorporated within the frequency converters of semiconductor propulsion complexes. Additionally, the study takes into account possible deviations in the ship network frequency, which can influence system performance under real operating conditions. The results demonstrate the effectiveness of the proposed tools in mitigating power quality issues, thereby contributing to the overall stability and efficiency of modern ship electrical power systems.