ROD MOVEMENT DIAGNOSTICS FOR NUCLEAR POWER PLANT USING ADVANCED DATA FITTING

摘要

Systems and methods of monitoring rod control systems of nuclear power plants, including: measuring a particular signal applied to at least one coil of a rod movement mechanism at one or more predetermined times relative to an initial energizing of a mechanism coil; comparing the measured signal to a reference signal parameter, and determining if the measured signal deviates from the reference signal parameter by a predetermined amount to indicate degradation of the rod control system.

主权项

1. A method of monitoring a rod control system of a nuclear power plant, comprising:
measuring an input to and/or output signal from at least one coil of a rod movement mechanism at one or more predetermined times relative to an initial energizing of a mechanism coil; calculating a signal parameter from the measured signal and comparing the measured signal to a reference signal parameter; and determining if the calculated parameter deviates from the reference signal parameter by a predetermined amount to indicate impairment of the rod control system.