Published May 20, 1994 | Version v1
Patent Metadata-only

Reactor power control device

Creators

  • 1. Hitachi Engineering Co. Ltd., Ibaraki (Japan)

Description

The present invention concerns a method of controlling reactor power to shift it into a partial power operation upon occurrence of recycling pump tripping or loss of generator load. Operation state of a reactor is classified into a plurality of operation states based on values of the reactor core flow rate and the reactor power. Different insertion patterns for selected control rods are determined on every classified operation states. Then, an insertion pattern corresponding to the operation state upon occurrence of recycling pump tripping or loss of power generator load is carried out to shift into partial power operation. The operation is shifted to a load operation solely in the station while avoiding risks such as TPM scram. Then neutron fluxes are suppressed upon transient to increase margin of fuel integrity. Selected control rod pattern of the optimum reactivity is set to each of operation regions, thereby enabling to conduct flexible countermeasure so as to attain optimum operationability. (N.H.)

Availability note (English)

Available from JAPIO. Also available from EPO.

Additional details

Publishing Information

Imprint Pagination
4 p.
IPC:
Int. Cl. G21D3/04.
IPC
Int. Cl. G21D3/04.
Patent number
JP patent document 6-138290/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
26008493
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BOUNDARY CONDITIONS; BWR TYPE REACTORS; CONTROL ELEMENTS; FLOW RATE; OPTIMIZATION; POWER; REACTOR CONTROL SYSTEMS; REACTOR CORES; REACTOR OPERATION; REACTOR STABILITY; TRANSIENTS
Descriptors DEC
CONTROL SYSTEMS; ENRICHED URANIUM REACTORS; OPERATION; POWER REACTORS; REACTOR COMPONENTS; REACTORS; STABILITY; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Secondary number(s)
JP patent application 4-292415.