| 摘要 |
The present invention relates to a method of controlling a nuclear reactor shutdown system, the method comprising: detecting a parameter related to a fission rate within a core of the reactor with a sensor, the sensor providing an output signal corresponding to the fission rate; determining a measured flux signal from the output signal with a signal processing device, the measured flux signal corresponding to a percentage of a reactor power; calculating a first derivative of the measured flux signal with a rate module, the rate module outputting a rate signal related to a percentage of reactor power per unit of time; biasing the rate signal with a bias signal component to produce a biased signal; applying a gain to the biased signal to produce a rate-based signal component; summing the rate-based signal component and measured flux signal to produce a rate-assisted flux signal corresponding to a percentage of a reactor power; and comparing the rate assisted flux signal to a trip setpoint with a comparator module, the comparator module generating a trip signal if the rate assisted flux signal is greater than the trip setpoint. |
