Definition of a sliding mode controller accounting for a reduced order model of gas turbine set

The aim of this article is that of proposing a novel approach for the control of an electric gas-generating unit for large power generation. The main objective of the control of a gas generating unit is that of controlling power production, in order to meet the requirements of grid operator, and keep the temperature of the exhaust gasses at the turbine outlet at a constant value in order to allow an optimal operation of the following heat recovery system. The focus of the paper is the definition of simplified representation of the gas turbine generator in order to evaluate the possibility of defining a control architecture based on the Sliding Mode theory that will avoid the necessity of measuring the temperature in the combustion chamber of the generator, which is an unavailable measurement.