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Method and system for controlling and switching computerized work station and backup disc

A backup disk and workstation technology, applied in the field of nuclear power plant control, to achieve the effect of improving safety

Active Publication Date: 2010-06-30
中广核工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The computerized workstation and backup disk switching scheme is an innovative technology in the nuclear power field. The existing nuclear power plant control field does not have this function. The switch setting and switching method are both technological innovations.

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  • Method and system for controlling and switching computerized work station and backup disc
  • Method and system for controlling and switching computerized work station and backup disc
  • Method and system for controlling and switching computerized work station and backup disc

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present invention, not to limit the present invention.

[0041] Through the selection of switching, the switching of the control authority of the computerized workstation and backup disk in the main control room of the nuclear power plant is realized. The method and system for realizing the switching of two monitoring modes is a key technology, involving three modes: the computerized workstation controls the effective backup disk and controls the invalid, the computerized workstation controls the effective backup disk test, and the computerized workstation controls the invalid backup disk to control the valid three modes. At the same time, according to the ...

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Abstract

The invention relates to a method and a system for controlling and switching a computerized work station and a backup disc. The method comprises the following steps that: a transfer switch sends a switching command; a logic processing unit judges the working modes of the computerized work station and the backup disc on the basis of the switching command, and sending a state signal to a control cabinet; and the control cabinet receives the state signal and takes corresponding interlocking and activating operations. The invention realizes the switching of control rights of the computerized work station and the backup disc of a nuclear power station main control room, guarantees the isolation of train A power supply and train B power supply in the switching process, does not cause failure of switching function when any switching fails, meets the single failure criterion, and ensures that the normal operation and accident handling of a nuclear power station unit can be maintained by the backup disc when the computer working station fails, thus improving the security and economy of the nuclear power station unit.

Description

technical field [0001] The invention relates to nuclear power plant control, more specifically, to a method and system for controlling switchover between a computerized workstation and a backup disk in a main control room of a nuclear power plant. Background technique [0002] At present, most of the nuclear power plants that adopt the digital distributed control system (DCS) control mode in the world adopt the computer-based control mode, although the DCS system adopts sufficient redundancy and has high reliability. Partial failures in the system generally do not affect the availability of the entire system, but there is still the possibility of losing computerized control means. Therefore, the main control room of the nuclear power plant that adopts the computerized workstation as the main control method is generally equipped with a backup disk. When the control method based on chemical workstations is not available, the reactor is forced to shut down immediately due to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21D3/00G21D3/06
CPCY02E30/40Y02E30/00Y02P90/02
Inventor 张黎明程波邹杰谭珂周粲张建波黄伟军梅世伯刘燕子
Owner 中广核工程有限公司
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