Advanced adaptive control system for activated anti-rolling tank

This paper attempts to apply the adaptive control theory to the design of a control system for a ship's rolling motion using an activated anti-rolling tank. In this theory, model parameters of the system are estimated sequentially on the basis of the least squares method. Numerical simulations are made based on the SOLA-SURF scheme, and it is confirmed that the system can effectively decrease the rolling angle over a wide frequency range and can cope with changes in motion characteristics by application of the theory to the control of an activated anti-rolling tank device.