Real Time Reactor Simulation on a Hybrid Computer

Abstract

A feasibility study was made on a hybrid computer for real time simulation to be used in large systems.Both the Boiling Water Power Reactor (BWR) and the Sodium Cooled Experimental Fast Reactor (EFR) were simulated, which, when relying on pure analog simulation, requires several nonlinear elements and about 100 operational amplifiers. In the present hybrid simulation, the analog part undertakes the operations of linear transfer functions, while the digital parts take care of function generation as well as the multiplication and division of the arithmetic operations.Two problems of transients are considered, i.e., insertions of reactivity in the negligible, which attested to the validity of the above-mentioned appropriation of functions to the analog and digital parts.The present study proves that real time simulation can more easily and accurately be realized with a hybrid than with an analog computer.