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Modeling and Supervision of Natural Gas Station in a Thermal Power Plant

This paper presents the need for structured analysis and real time (SA-RT) method of control-command applications in a thermal power plant (TPP) using a supervisory control and data acquisition systems (SCADA). Then, the architecture of a SCADA system in a TPP in Tunisia is presented. A significant example of a control-command application in a TPP in Tunisia is presented. It is about the natural gas station of the TPP. Then an application of a structured analysis method in a TPP, generally used in industry, on the basis of the SA-RT formalism is presented. In fact, different modules are presented: Context Diagram, Data Flows Diagram, Control Flows Diagram, State Transition Diagram, Timing Specifications and Requirements Dictionary. Finally, this functional and operational analysis allows us to assist the different steps of the specification, the programming and the configuration of a new tabular in a SCADA system of the natural gas station.