Power turbine speed control of the GE T700 engine using the zero steady-state self-tuning regulator

Ozsoy C., Duyar A., Kazan R., Kilic R.

1997 IEEE International Conference on Intelligent Engineering Systems (INES 97), Budapest, Hungary, 15 - 17 September 1997, pp.371-378 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Budapest
  • Country: Hungary
  • Page Numbers: pp.371-378
  • Istanbul Technical University Affiliated: No


This paper presents a new approach to the speed control of the T700 turboshaft engine using an adaptive controller of the self-tuning type for the power turbine. For the design of the SISO-STR, a SISO time-series model describing the relationship between the fuel flow as input and power turbine speed as output is used. The unknown parameters of this model can be updated recursively on-line by the RLS estimation algorithm. An adaptive self-tuning type controller are then designed by minimizing the expected value of a quadratic criterion which also includes an integrating effect to remove the steady-state speed errors. Three linearized models characterizing turboshaft engine without and with load dynamics are used to test robustness and performance specifications of the proposed self-tuning regulator in the digital simulation studies.