Keywords
degaussing power supply; two-stage converter; model predictive control; multi-output; Buck converter
Abstract
A ship generates a compensating magnetic field by supplying power to multiple sets of degaussing coils, and when a single degaussing coil fails, the remaining degaussing coil current needs to be adjusted quickly.To address the difficulty of degaussing power supply to maintain the magnetic field quickly and accurately when the coils fail, this paper proposes a model predictive control method for Buck converter-type degaussing power supply current, which realizes the stable and fast control of degaussing current.By analyzing the working principles of the front and rear two-stage converters, this study develops a two-stage multi-output Buck converter state-space averaging model, based on which the model predictive controller of the degaussing power supply is designed.Using Matlab/Simulink simulation model, the study verifies the effectiveness of the proposed control method and carries out numerical simulation on the ship’s resultant magnetic field.The simulation results show that the proposed method can restore the magnetic field to a safe range in the shortest possible time.
DOI
10.19781/j.issn.1673-9140.2025.05.023
First Page
246
Last Page
253
Recommended Citation
YANG, Xiaohui; HUANG, Wentao; YANG, Huanhong; and YU, Moduo
(2025)
"Model predictive control method for degaussing power supply current in induced magnetic field of ship,"
Journal of Electric Power Science and Technology: Vol. 40:
Iss.
5, Article 23.
DOI: 10.19781/j.issn.1673-9140.2025.05.023
Available at:
https://jepst.researchcommons.org/journal/vol40/iss5/23
