A description of the thermal power system analyser structure and commands

Abstract

This report describes a system comprised of a set of interactive commands and a data base which aids in the modeling of thermal power systems with the aid of a computer. This system, named TPSA (Thermal Power System Analyser), is implemented as a subsystem within the Multics interactive system, which runs on a Honeywell 6180 computer. TPSA deals with models and data bases. A TPSA model is a program capable of computing various output parameters of a thermal power system when given the values of necessary input variables. A TPSA data base is a collection of named variables which a model can access to obtain the value of a parameter or record a result. The interactive commands facilitate setting desired values of the input variables, executing the program, and displaying the selected output variables at the end of the program run. Some special commands, generally found useful in modeling work are also included. Procedure to modify the data base or to create a new data base is described. Some typical examples are included that provide a record of the interactive session with TPSA, illustrating model execution and use of the "probe" command for debugging the program.