Plant malfunction diagnostic method

Details Plant malfunction diagnostic method Plant malfunction diagnostic method

1990-02-07

1991-06-11

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By electronic signal processing circuitry

376216, 376217, 3642749, 3642752, 364148, 364495, 364513, 3649724, G21C 736

Patent

active

050230450

ABSTRACT:
A plant malfunction diagnostic method is characterized by determining by simulation a change in a plant state variable, forming a pattern among plant state variables obtained by autoregressive analysis of the change in plant state variable, inserting the formed pattern among the plant state variables in a neural network, performing learning until a preset precision is obtained, and identifying the cause of the malfunction by inserting, in the neural network, a pattern which indicates the pattern among plant state variables formed by data gathered from the plant. This makes possible early identification of the cause of a malfunction. Plant rate of operation and safety are improved by allowing the operator to perform the appropriate recovery operation with a sufficient time margin.

REFERENCES:
patent: 4807168 (1989-02-01), Moopenn
patent: 4853175 (1989-08-01), Book
patent: 4906940 (1990-03-01), Greene
patent: 4933871 (1990-06-01), De Sieno
patent: 4947482 (1990-08-01), Brown
Hassberger et al., "A Simulation-Based Expert System for Nuclear Power Plant Diagnostics", Nuclear Science of Engineering: 102, 153-171 (1989).

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