Analysis and simulation research of ship electric propulsion system
With the goal of ensuring the stable operation of ships to the greatest extent possible,the analysis and simu-lation research of ship electric propulsion system is carried out.Based on the structural composition of ship electric propul-sion system,mathematical models of various components are constructed.Matlab Simulink simulation analysis software is used to simulate and calculate the ship electric propulsion system,and its performance under different working conditions is analyzed.The simulation analysis results show that direct starting of the vehicle exhibits a fast response speed,but the pro-peller torque overload is severe.In contrast,although the starting process of the graded main engine is relatively long,the changes in propeller torque and ship speed are more stable.Under sudden load conditions,the method proposed in this paper exhibits good performance,can quickly adapt to load changes,has a short adjustment time,and has small motor current fluc-tuations,which is conducive to ensuring the stable operation of the electric propulsion system.Under the condition of chan-ging speed,the fluctuation amplitude and steady-state error are small,and it has high stability and control accuracy.
electric propulsion systempropellerinverterpropulsion motor
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