Affiliation:
1. College of Logistics Engineering, Shanghai Maritime University, Shanghai 201306, China
Abstract
In the navigation of rudderless dual-motor propulsion ships, it is often necessary for the dual motor to run stably at different given speeds. However, the existing coupling strategies cannot achieve precise cooperative control of the dual motor under different given commands. Therefore, in this study, we proposed a variable error difference compensation-coupling control (VEDC-CC) strategy. Simultaneously, a coupling compensation coefficient determination method based on the self-error difference of the dual motor was introduced. The VEDC-CC utilizes the self-error difference of the dual motor as the input for the coupling compensation controller, which enables the mutual coupling of self-errors, and effectively improves the cooperative controlling performance under different given commands. Moreover, the employed variable compensation coefficient determination method enhances the disturbance coupling performance and the response speed of the system. In this study, we analyzed the different navigation conditions and dual-propeller load characteristics of a rudderless dual-motor propulsion ship. Taking a rudderless dual-motor propulsion ship designed based on the cruise ship “Feng Hua Xue Yue” as the object, the VEDC-CC strategy was validated through simulation tests, considering the propeller load characteristics and actual operating conditions. The experimental results demonstrated that the VEDC-CC strategy could meet the practical control needs of the target ship.
Subject
Ocean Engineering,Water Science and Technology,Civil and Structural Engineering
Reference21 articles.
1. Zhang, H., Liang, W., and Zhang, H. (December, January 29). Multi-PMSM Sensorless Cooperative Control Based on LADRC. Proceedings of the 2022 25th International Conference on Electrical Machines and Systems (ICEMS), Chiang Mai, Thailand.
2. Cross-coupling control design of a flexible dual rotor wind turbine with enhanced wind energy capture capacity;Cai;Renew. Energy,2024
3. Lan, C.Y., Wang, H., Deng, X., Zhang, X.F., and Song, H. (2023). Multi-motor position synchronization control method based on non-singular fast terminal sliding mode control. PLoS ONE, 18.
4. Improved relative coupling control structure for multi-motor speed synchronous driving system;Shi;IET Electr. Power Appl.,2016
5. Perez-Pinal, F.J., Calderon, G., and Araujo-Vargas, I. (2003, January 1–4). Relative coupling strategy. Proceedings of the IEEE International Electric Machines and Drives Conference, 2003. IEMDC’03, Madison, WI, USA.