Dynamic simulation of a boiling water nuclear reactor

For the application of modern control theory, specifically optimal control, to the boiling water reactor, it is necessary to have a linear model that is validated. In this paper the nonlinear model of the BWR derived on the basis of physical laws and empirical relations is linearized around an operating point and the model is verified against experimental results by simulating various tests such as the pressure transient test, change in power to recirculating pump etc. The transport delay occurring in the model is approximated by various representations and the results are compared with the exact delay representation. Validation such as discussed in the paper forms the basis for devising appropriate control strategies in the presence of disturbances