Arkan k.AL-Taie; Usama S.Salah
Abstract
The general configuration of a turboshaft gas turbine control systems model ispresented. The control systems included the relationships between the engine and itslimitations such as ...
Read More ...
The general configuration of a turboshaft gas turbine control systems model ispresented. The control systems included the relationships between the engine and itslimitations such as a compressor surge line limit, exhaust gases temperature, the speedof the engines spools. The control system is of Multi Input Single Output (MISO) type,where the inputs to the controller are the limitation signals and the demand whither theonly single output is the fuel valve new setting. The main parameter that the systemcontrols by is that the fuel mass flow rate and the device which is doing this job is thefuel controller. The control system changes the fuel flow according to the enginedemands by changing the fuel valve angle (θ) .The time responses of each effective parameter was predicted for a different fuelvalve angle and introduce the most effective specifications of the time response of thesystem (delay time, rise time, settling time and maximum overshoot). The behavior ofthe maximum overshoot value (if founded) is increasing with the fuel valve increasing.The value of delay, rising, and settling times decreases with the fuel valve angleincreases. The present results show a good agreement with the previous works.
