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The aim of this paper is to demonstrate the successful application of systematic dynamic simulation modelling in researching the performance dynamics of the marine steam turbine, in the example of load of marine synchronous generator. Marine steam turbine at the load of synchronous generator is a complex non-linear system, which needs to be systematically investigated as a unit consisting of a number of subsystems and elements, which are linked by cause-effect feedback loops, both within the propulsion system and with the relevant surrounding. In this paper the authors will present the efficient application of scientific methods for the research of complex dynamic systems called qualitative and quantitative simulation methodology of System dynamics. This will allow continuous computer simulation of various models and significantly contribute to acquisition of new information about the non-linear character of performance dynamics of turbo generator’s systems in the process of designing, failure diagnosis, optimization and education. Marine steam turbine will be presented by a set of non-linear differential equations, after which mental-verbal structural models and flowcharts in System dynamics symbols will be produced. Performance dynamics will be simulated in POWERSIM simulation language.

Marine steam turbine at the load of synchronous generator is a complex non-linear system, which needs to be systematically investigated as a unit consisting of a number of subsystems and elements, which are linked by cause-effect feedback loops. In this paper the authors will present the efficient application of scientific methods for the research of complex dynamic systems called qualitative and quantitative simulation methodology of System dynamics. This will allow continuous computer simulation of various models and significantly contribute to acquisition of new information about the non-linear character of performance dynamics of turbo generator systems in the process of designing, failure diagnosis, optimization and education. The results presented in the paper have been derived from the scientific research project “Shipboard energy systems, alternative fuel oils and reduction of pollutants emission” supported by the Ministry of Science, Education and Sports of the Republic of Croatia