Research on Speed Cooperative Control Strategy for Rudderless Dual-PMSM Propulsion Ships

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 stu...

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Bibliographic Details
Published inJournal of marine science and engineering Vol. 12; no. 2; p. 266
Main Authors Zhou, Ziqi, Geng, Pan, Cao, Wei, Xu, Xiaoyan
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.02.2024
Subjects
Algorithms
Compensation
Controllers
Cooperative control
Coordinate transformations
Cruise ships
Cruises
Engines
Error analysis
Motor task performance
multiple operating conditions
Mutual coupling
Navigation
Passenger ships
Propulsion
relative coupling control
rudderless dual-motor propulsion ship
Shipping industry
Simulation methods
speed cooperative control
Velocity
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Summary: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.
ISSN:2077-1312
2077-1312
DOI:10.3390/jmse12020266