Modeling And Simulation Of Steam Turbine System Based On Modelica_Dymola

With the development of electric power industry, ultra supercritical unit has been the developmental direction of thermal power generation unit. Higher requirements are put forward to meet the increase of capacity and parameter levels. Related researches, such as unit operation optimization, analysis and design on control systems, performance assessment for system have been widely developed. In this way, a model for boiler-turbine system with enough accuracy, strong applicability and convenient handling is urgently desiderated by above-mentioned studies. Therefore, in this paper, an ultra supercritical steam turbine system model is built for the 1000MW unit of Taizhou power plant based on Modelica_Dymol platform. The equipment modules of turbine system are established firstly following the physical mechanisms, which compose the modules library for integrated simulation of turbine system. After that, the integrated model of turbine system is composed with modules in the library. Field running data are used to determine the parameters, and analyze the accuracy of the model. The analyzing results show that the turbine system model can be used conveniently and the simulation performance of the model is well.