Real time simulation of medium size gas turbines

Abstract A tool for gas turbine dynamic simulation is presented in this work. First, a thermodynamic model of the engine is presented, capable of predicting engine performance at full and part load conditions. This model considers modern features as variable geometry compressor and air cooled turbine expansion. Then, two different control techniques are assessed in order to control the engine during transient operation. After analyzing the stability and robustness of both controllers, one of them is selected due to its faster response and better stability. The complete model is validated and then applied to two different transient conditions. First, some perturbations are applied in order to see how the control system is able to compensate these abnormal situations in order to maintain the frequency of the shaft. Then, a ramp up from idle to peak load is analyzed. This last study is aimed at assessing the stability of the model for the widest possible load range. According to the results shown, the stability and robustness of the model is satisfactory.

[1]  P. Fiorini,et al.  Application of the camel® process simulator to the dynamic simulation of gas turbines , 2006 .

[2]  van Ha Harm Essen,et al.  Nonlinear Model Predictive Control Experiments on a Laboratory Gas Turbine Installation , 2000 .

[3]  R. Lindsay,et al.  Elements of gasdynamics , 1957 .

[4]  J. F. Kikstra,et al.  Dynamic Modeling of a Cogenerating Nuclear Gas Turbine Plant—Part II: Dynamic Behavior and Control , 2002 .

[5]  Silvio Simani,et al.  Fault diagnosis of a simulated industrial gas turbine via identification approach , 2007 .

[6]  Tong Seop Kim,et al.  Model Development and Simulation of Transient Behavior of Heavy Duty Gas Turbines , 2001 .

[7]  Ian Postlethwaite,et al.  Multivariable Feedback Control: Analysis and Design , 1996 .

[8]  Heba M. Lakany,et al.  An Investigation into the Application of Fuzzy Logic Control to Industrial Gas Turbines , 2003, IC-AI.

[9]  K. Tokunaga,et al.  Development of a High-Pressure-Ratio Axial Flow Compressor for a Medium-Size Gas Turbine , 1986 .

[10]  Peter J. Fleming,et al.  Multiobjective gas turbine engine controller design using genetic algorithms , 1996, IEEE Trans. Ind. Electron..

[11]  P. Kundur,et al.  Dynamics models for combines cycle plants in power system studies , 1994 .

[12]  H. I. H. Saravanamuttoo,et al.  Abstract of c.a.d. literature: Experimental verification of a digital computer simulation method for predicting gas turbine dynamic behaviour , 1972 .

[13]  S. F. Smith.  A Simple Correlation of Turbine Efficiency , 1965, The Journal of the Royal Aeronautical Society.

[14]  T. Schulenberg,et al.  Shop Test Result of the V64.3 Gas Turbine , 1992 .

[15]  M. El-Masri.  On Thermodynamics of Gas-Turbine Cycles: Part 2—A Model for Expansion in Cooled Turbines , 1986 .

[16]  Henry Cohen,et al.  Gas turbine theory , 1973 .

[17]  Bernardo Fortunato,et al.  Dynamic modelling of recuperative gas turbines , 2000 .

[18]  William F. McGreehan,et al.  Flow Characteristics of Long Orifices With Rotation and Corner Radiusing , 1987 .

[19]  T. S. Kim,et al.  Analysis of the dynamic behaviour of regenerative gas turbines , 2001 .

[20]  W. I. Rowen,et al.  Simplified Mathematical Representations of Heavy-Duty Gas Turbines , 1983 .

[21]  Bijnan Bandyopadhyay,et al.  Sliding mode control of gas turbines using multirate-output feedback , 2008 .

[22]  Tong Seop Kim,et al.  Dynamic Simulation of Full Startup Procedure of Heavy-Duty Gas Turbines , 2002 .

[23]  K. S. Ahluwalia,et al.  Dynamic Modeling of a Combined-Cycle Plant , 1990 .

[24]  Jiangjiang Wang,et al.  Adaptive PID control with BP neural network self-tuning in exhaust temperature of micro gas turbine , 2008, 2008 3rd IEEE Conference on Industrial Electronics and Applications.

[25]  Jeeyoung Shin,et al.  Analysis of the dynamic characteristics of a combined-cycle power plant , 2002 .

[26]  Earl Logan,et al.  Handbook of Turbomachinery , 1994 .

[27]  Lennart Ljung,et al.  System Identification: Theory for the User , 1987 .

[28]  Alberto Traverso,et al.  Transient Analysis of and Control System for Advanced Cycles Based on Micro Gas Turbine Technology , 2005 .

[29]  Bernardo Fortunato,et al.  Non-linear simulation model and multivariable control of a regenerative single shaft gas turbine , 1997, Proceedings of the 1997 IEEE International Conference on Control Applications.

[30]  M. A. El-Masri,et al.  GASCAN ― an interactive code for thermal analysis of gas turbine systems , 1988 .

[31]  Bernardo Fortunato,et al.  A Modular Code for Real Time Dynamic Simulation of Gas Turbines in Simulink , 2006 .

[32]  Sung Tack Ro,et al.  Dynamic behaviour analysis of a heat recovery steam generator during start-up , 2000 .