Dynamic Model And Simulation Of The Gas Turbine Based On Combined Cycle

In the 21century, the development of power station required of high efficiency, good economics, low pollution, that's to say, to combine the energy, economic, environment together. This requirement breaked down the long time governing status of steam turbine in the world power generation, and gas turbine and it's combined cycle will replace it, because of their advantage of low cost rate, short building time, high efficiency, low pollution, and this must will influence our country's economic development and environment protection deeply. So it is very necessary to study the characteristics by developing a mathematical model for gas turbine, so as to provides the basis for the design, operation and control of gas turbine.The paper analyze the limitations of serial gas turbine model, take single axis gas turbine as prototype, with the intensive analyzes and profound of the principles and characteristic of the object, using the Modular modeling method proposed the dynamic model of gas turbine, which including the model of compressor, combustor, turbine. With respect to the purposes and key points of establishing model, the model is simplified. The intensive cooling of turbine blades is also modeled. The compressor and turbine are modeled according to their stage characteristic.The simulation program is written with ACSL language, under this basis, simulation experiments were conducted. The results of simulation showed that the principles of gas turbine correctly reflect the dynamic characteristic of gas turbine. The model provides a useful and reliable tool for research, development of gas turbine, it also enriches and develops the modeling technology and simulation method of thermodynamic system.