Title:
【発明の名称】制御棒駆動システムおよび制御棒位置偏差監視装置
Document Type and Number:
Japanese Patent JP2821082
Kind Code:
B2
Abstract:
PURPOSE:To prevent in advance a control rod vertical position deviation being a limit value of reactor safety analysis during gang driving by providing control rod driving system having a drive power source of an induction motor with a gang group control rod position deviation monitoring device. CONSTITUTION:A control rod position deviation monitoring device 3 is constituted of a position signal input circuit 31, for inputting the vertical position information of a control rod from a control rod drive controller 2, a drive velocity regulation judgment circuit 32 for calculating the position deviation of each control rod being driven using the position information, reducing the drive velocity of control rods which are driven in advance with position deviation over a regulated value after comparing with the regulated value and correcting the drive velocity of control rods which are driven with position deviation below regulation release value to be the set velocity at normal time and judging the drive velocity, and a drive velocity output circuit 33 for outputting information from the judgment circuit to the control drive controller 2. Therefore, as control rods are driven with a drive power source of an induction motor by keeping the position deviation between the each control rod during gang driving to be no problem in reactor safety analysis, a control rod driving system with low cost and high safety level can be provided.
Inventors:
Kohara
Seiji Takehiko
Kudo Mitsuru
Seiji Takehiko
Kudo Mitsuru
Application Number:
JP8628593A
Publication Date:
November 05, 1998
Filing Date:
April 13, 1993
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G21C7/08; G21C7/12; G21C7/18; G21C17/10; (IPC1-7): G21C7/12; G21C7/08; G21C7/18; G21C17/10
Attorney, Agent or Firm:
Takasaki Takahiro