Integral sliding mode control for ship main cooling systems

Abstract

This paper presents the design and implementation of integral sliding mode control (ISMC) for the main cooling systems of ships. A ship cooling system is critical for maintaining optimal operational temperatures and ensuring the efficiency and reliability of ship machinery. However, conventional PI control often struggles to minimize energy consumption while maintaining stability under nonlinear disturbances, whereas standard sliding mode control suffers from chattering that can damage actuators. The proposed ISMCbased method addresses the challenges posed by system uncertainties and external disturbances, which are common in marine environments. Through mathematical modeling and simulation, ISMC is shown to save more energy than traditional control methods. These results indicate that seawater pumps are efficiently operated by ISMC. This study contributes to the advancement of control strategies in marine engineering and offers a viable solution for optimizing ship cooling systems.