List of Articles رویت‌گر غیرخطی تطبیقی

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  1 - Sliding Mode Control of Gas Turbine Based on Adaptive Nonlinear Observer
  Hamed Tabibi Mohsen Parsa
  According to the critical role of gas turbines in the industry, monitoring the performance of gas turbines is an important issue since it can prevent unexpected shutdowns and the serious consequent financial harms. One of the most important parts of a gas turbine is the More

  According to the critical role of gas turbines in the industry, monitoring the performance of gas turbines is an important issue since it can prevent unexpected shutdowns and the serious consequent financial harms. One of the most important parts of a gas turbine is the combustion chamber. Although the internal pressure and temperature of the combustion chamber can directly affect the performance and useful life of this part, however, it is not possible to measure it directly through sensors. Therefore, estimation of pressure variable is a good choice to achieve greater performance and more relative stability comparing with the methods in which there is no access to the internal pressure of the chamber. In this research, a suitable nonlinear dynamic model with produced power and exhausted gas temperature as its outputs is chosen. Thereafter, an adaptive surface sliding observer is designed in order to estimate the combustion pressure and temperature which are the state variables of the gas turbine. Afterward, utilizing a sliding mode controller and applying the estimated states, the produced power and exhaustion gas temperature of the gas turbine is controlled. In this paper, the stability of the closed-loop system in the presence of the state observer through the Lyapunov approach is guaranteed. Finally, simulation results are provided to verify the validity and efficiency of the proposed method. Manuscript profile