Simulation of Bull Run Supercritical Generation Unit

The Bull Run supercritical unit was simulated by a linearized mathematical model based entirely on physical laws and design data, using an approach verified by comparison of an earlier simulation with field tests. A large set of differential and algebraic equations was solved to obtain transient responses. These responses were matched by transfer functions to obtain a process model which represented all significant plant inputs and outputs. In this study, appropriate use was made of a small digital computer, a large digital computer, and an analog computer. The process model of the Bull Run unit is believed to be the most detailed mathematical model which has been obtained for a supercritical electrical generation unit.