Modeling and Simulation of Gas Turbine Fuel Valve Control System based on Parameter Identification
Aiming at the problem that the domestic gas turbine gas fuel valve relies on foreign imports for a long time and lacks the ability of independent design and verification,this paper takes the actuator of the fuel valve control system as the object,deduces and establishes its mathematical model,and uses the least squares algorithm to identify the model parameters according to the experimental data.The transfer function of the actuator of the fuel valve control system is obtained,and then the dynamic response char-acteristics of the actuator and the fuel valve control system are simulated and analyzed by using the trans-fer function model.Comparing the simulation results with the experimental results,the overall error be-tween the simulated and the measured results is less than 1%,which verifies the accuracy of the estab-lished actuator transfer function model.The response time of the position servo control system under the action of step signal is 1.2 s,and the steady-state error is less than 1%.The system has certain anti-in-terference performance.The frequency domain analysis of the system shows that the dynamic response of the control system is good within 2.5 Hz.
gas turbinefuel valveparameter identificationleast squares methodemulation modeling