Investigation of the IGT25 Turbo-Compressor Control Logic Behavior Coupling with a 25-MW Consumer under Dynamic Loading

Abstract

Implementing control logic in dynamic modeling of gas turbines is one of the important and effective methods in analyzing the performance of IGT25 gas turbine; because, in dynamic modeling, various results would be achieved, through different control philosophies. To do so, using behavioral analysis of the performance of IGT25 gas turbine under different ambient conditions and different fuel compositions, appropriate control logic could be extracted. In the paper, method of extraction and entering the control logic in modeling dynamic condition of IGT25 gas turbine coupled with a 25MW consumer has been studied under different ambient conditions such as various ambient temperature and pressure, relative humidity, and fuel compositions. Primarily, various scenarios existing in relation to gas turbine control have been studied; then, studying the dynamic behavior of IGT25 gas turbine under the aforementioned condition, considered control logic has been reviewed. Data obtained are at the nominal load and the condition in which the turbine’s temperature controller has been set to higher temperatures so that the maximum output load is achieved for the consumer.