Ship Electric Propulsion Experiment Platform

1.      Platform Introduction

The electric propulsion experiment platform is a simulation experiment platform that integrates a digital simulation system, real-time simulation system, and actual small-scale experiment system. On this platform, users can conduct structural parameter design optimization and operation strategy research for electrically propelled ships, and by conducting steady-state or dynamic simulation experiments, users can analyze factors that affect the performance of the electric propulsion system. It also provides guidance on improved design or optimized operations and provides efficient solutions for actual system demonstration or verification.


The above figure shows the comparison between the simulated parent ship and the small-scale experiment platform. 

(a) is the simulated parent ship propulsion system, consisting of a propulsion motor, transmission shaft, and propellers; 

(b) is the small-scale simulated propulsion system, consisting of a propulsion motor, transmission shaft, flexible coupler, and load motor. The moment of resistance of the load motor is calculated based on the mathematical model of the blades of the simulated parent ship.

2.      Platform Features
  1. Digital Simulation System: Establishes ship blade models based on Matlab Simulink and carries out offline simulation research, specifically including: advance ratio subsystem model, thrust subsystem model, torque coefficient subsystem model, thrust deduction coefficient subsystem model, wake coefficient subsystem model, effective thrust subsystem model, ship speed subsystem model, propeller torque subsystem model, etc.
  2. Real-Time Simulation System: Based on the Links-Box real-time simulator, an HIL real-time simulation system is constructed for the ship electric propulsion system, combining the operations of the dynamic mathematic model of ship blades (established in Simulink) and the small-scale experiment platform, thus realizing HIL experiments for the ship electric propulsion system and providing reference and guidance for the design and model selection of actual ship systems.
  3. Small-Scale Experiment System: Based on the principle of similarity isomorphism, a small-scale physical system is constructed for a target ship, consisting of a small-power propulsion motor, transmission shaft, flexible coupler, and load motor.

3.      Experiment Contents
  • Electric propulsion principle and semi-physical simulation model establishment
  • Digital simulation experiment for electric propulsion vehicle forward start, forward parking, reverse start, and reverse parking;
  • Digital simulation experiment for electric propulsion vehicle forward-reverse and reverse-forward transition;
  • Electric propulsion operation test on a physical simulation experiment platform;
  • Semi-physical simulation experiment for electric propulsion vehicle forward start, forward parking, reverse start, and reverse parking;
  • Electric propulsion propeller emergence and submergence simulation experiment;
  • Semi-physical simulation experiment for electric propulsion vehicle forward-reverse and reverse-forward transition;
  • Semi-physical simulation experiment for electric propulsion multi-axis linkage;
4.      Model Selection and Configuration

Product Name

Product Model

System Configuration

Ship Electric Propulsion Experiment Platform

LINKS-RN-SEP-01

Fast prototype simulator

Links-Box-02

Motion control card

Links-IPC-GTS

Small-scale experiment system

Links-PMSM-02

Real-time simulation software package

Links-RT


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