| 摘要 |
Supervision with respect to the stability of a reactor core in a boiling water reactor plant. In a first calculating means (17), the internal state of the reactor core is determined on the basis of known operating data from the reactor plant. In dependence on sensed operating data and the calculated internal state, the behaviour of the reactor core for a number of preselected events affecting the stability of the core is continuously simulated in a simulation means (19). In a second calculating means (20), the stability of the reactor core is determined, based on the simulated behaviour of the reactor plant, and an alarm signal is generated if a predetermined stability criterion is not fulfilled. |
