NONLINEAR CONTROL OF NUCLEAR REACTORS

摘要

A model based nonlinear controller with an explicit integral action (MRNCI) is theoretically applied to a liquid metal cooled nuclear reactor for controlling neutron power and core coolant output temperature using rod position and primary pump fractional flow as manipulated variables. The performance of the MRNCI is compared with the model based nonlinear controller without any explicit integral action (MRNC) and also to that of the conventional PI controller. Under system parameters uncertainty, the performance of the MRNCI is superior to that of the MRNC. Conventional PI controllers are shown to give an inferior performance.