Constrained model predictive control implementation for a heavy-duty gas turbine power plant

  • Authors:

  • Hadi Ghorbani;Ali Ghaffari;Mehdi Rahnama

  • Affiliations:

  • Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran;Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran;Islamic Azad University of Science & Research branch, Tehran, Iran

  • Venue:
  • WSEAS Transactions on Systems and Control
  • Year:
  • 2008

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Abstract

In this paper, model predictive control (MPC) strategy is implemented to a GE9001E gas turbine power plant. A linear model is developed for the gas turbine using conventional mathematical models and ARX identification procedure. Also a process control model is identified for system outputs prediction. The controller is designed in order to adjust the exhaust gas temperature and the rotor speed by compressor inlet guide vane (IGV) position and fuel signals. The proposed system is simulated under load demand disturbances. It is shown that MPC controller can maintain the rotor speed and exhaust gas temperature more accurately in comprehension with both SpeedTronic™ control system and conventional PID control.