Modeling And Simulation Of Fuel Pressurization System Of Micro Gas Turbine

As one of the core components of micro gas turbine,the fuel pressurization system determines the performance of the micro gas turbine.Due to the complex working conditions,the fuel pressure does not reach the set value in the actual production process,and the fuel mass flow into the combustion chamber fluctuates greatly,which is likely to cause serious consequences such as abnormal fuel supply and failure of micro gas turbine.Therefore,in order to ensure the safe operation of micro gas turbine,it is necessary to model the fuel pressurization system.In this paper,the fuel pressurization system of micro gas turbine is studied,a modeling method of fuel pressurization system is presented,and the parameters of the controller are optimized by optimization algorithm to improve its performance.Based on the actual working principle of fuel pressurization system,modeling and simulation studies are carried out in this paper from component-level model to subsystem model and overall model to controller parameter optimization.Firstly,the component-level model is established according to the working principle,and relevant parameters are substituted into the component-level model for simulation to verify the component characteristic curve.Then,the typical working process curve is verified according to the specific data requirements.Furthermore,the subsystem model is established according to the working principle.Finally,the subsystem model is combined to establish the system-level model under full operating conditions.Aiming at the problem of controller parameter optimization,several intelligent optimization algorithms are proposed,the simulation result of particle swarm optimization algorithm is found to be the best,the parameters of PID controller are optimized by particle swarm optimization algorithm.The simulation analysis of the whole working condition of the model is carried out through the actual data.The simulation results show that the AMEsim modeling method provides an effective solution for analyzing the performance of fuel pressurization system of micro gas turbine.