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This paper describes the design and implementation of the marine electric propulsion dynamic load simulation system, witch is a real-time hardware-in-the-loop simulation system for marine electric propulsion. Especially, issues about implementing the propeller dynamic load simulation, such as the propeller dynamic load mathematical model, the embedded simulation computer, as well as specific problems and solutions in practical implementation work, are discussed in detail. Finally results of experiment with this system is shown and interpreted.

This paper introduces the Marine Electric Propulsion Dynamic Load Simulation System, and puts forward a new type ARM+DSP embedded system to implement the screw load dynamic simulation, which is the vital part of this real-time HIL simulation system. Hardware and software of ARM+DSP embedded system, as well as some problems in practical implementation and corresponding solutions are discussed in detail. Some simulation experiment results produced by the simulation system are also shown in the paper.

According the new ship building tense, a novel electric propulsion simulator (EPS) had been developed in Marine Simulation Center of SMU. The architecture, software function and FCS network technology of EPS and integrated power system (IPS) were described. In allusion to the POD propeller in ship, a special physical model was built. The POD power was supplied from the simulative 6.6 kV Medium Voltage Main Switchboard, its control could be realized in local or remote mode. Through LAN, the simulated feature information of EPS will pass to the physical POD model, which would reflect the real thruster working status in different sea conditions. The software includes vessel-propeller math module, thruster control system, distribution and emergency integrated management, double closed loop control system, vessel static water resistance and dynamic software; instructor main control software. The monitor and control system is realized by real time data collection system and CAN bus technology. During the construction, most devices such as monitor panels and intelligent meters, are developed in lab which were based on embedded microcomputer system with CAN interface to link the network. They had also successfully used in practice and would be suitable for the future demands of digitalization ship.