Proper estimation of dynamic behavior of gas turbines is essential to control of these systems. This paper investigates a thermodynamic model of two-shaft gas turbines based on thermodynamic principles, component… Click to show full abstract
Proper estimation of dynamic behavior of gas turbines is essential to control of these systems. This paper investigates a thermodynamic model of two-shaft gas turbines based on thermodynamic principles, component maps and matching equations considering the blade air cooling effects. An iterative method is applied to analyze design point condition and also to evaluate steady states and transient modes. An open loop control procedure is applied to regulate inlet guide vane position. An industrial min-max control strategy is also adopted to adjust proper fuel flow rate value considering physical limits. Moreover, an invasive weed optimization (IWO) algorithm as a proper optimization method is used to find out the optimal gain values of control structure. Finally, the results are analyzed and performance of control structure has been studied in part load conditions.
               
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