Simulation of dynamic characteristics of marine steam power system under rapid power generation disturbance

  Objectives  In order to ensure safe and stable operation of the marine steam power systems, it is necessary to study the dynamic response characteristics of the system under the rapid power generation disturbance of a turbo-generator set.

  Methods  An overall simulation model of a marine steam power system is established, and the simulation analysis of the dynamic characteristics of the system is carried out according to the operating conditions of single and continuous rapid disturbance of power generation.

  Results  The simulation results show that the steam intake pressure of the main engine fluctuates by no more than 5% under single rapid disturbance, and by by no more than 7% under continuous rapid disturbance, and the fluctuation of the propeller's revolution speed under the two disturbance conditions is not more than 2%, which can meet the stable steam supply demand of the system.

  Conclusions  The results of this study can provide references for the safety design of marine steam power systems.