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Signal distribution method and signal distribution system of digital instrument control system (DCS) of nuclear power plant

A signal distribution and instrument control system technology, applied in the field of nuclear power, can solve the problems of being unable to evaluate the impact of potential risks of nuclear power plants, and cannot objectively and comprehensively evaluate the reliability, safety and economy of DCS, etc., to achieve the minimization of potential risks, Reduce the impact of correlation and optimize the effect of function allocation

Active Publication Date: 2014-12-24
中广核工程有限公司 +1
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Problems solved by technology

[0009] The purpose of the present invention is: for the above-mentioned nuclear power plant DCS signal distribution / grouping mode of the prior art, it is impossible to objectively and comprehensively evaluate the reliability, safety and economy of the entire DCS, and it is also impossible to evaluate the potential risk of the DCS reliability to the nuclear power plant. Influenced defects, providing a signal distribution method and system for a digital instrument and control system of a nuclear power plant

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  • Signal distribution method and signal distribution system of digital instrument control system (DCS) of nuclear power plant
  • Signal distribution method and signal distribution system of digital instrument control system (DCS) of nuclear power plant
  • Signal distribution method and signal distribution system of digital instrument control system (DCS) of nuclear power plant

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Embodiment Construction

[0067] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0068] The signal distribution method of the digital instrument and control system of the nuclear power plant in the embodiment of the present invention, on the basis of the qualitative evaluation method, introduces the reliability technology based on the quantitative evaluation of probability risk to detect the signal distribution / grouping of the digital instrument and control system of the nuclear power plant to guide The design of decentralized control and function allocation of the digital I&C system reduces the probability of increasing the risk of core fusion (CDF) and large radioactive leakage (LRF) accidents in nuclear power plants due to unreasonable allocation / grouping, and reduces the risk of system failure due...

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Abstract

The invention discloses a signal distribution method and a signal distribution system of a digital instrument control system (DCS) of a nuclear power plant. The signal distribution method includes: acquiring an instrument control function control demand list of the nuclear power plant; dividing the instrument system / equipment into a plurality of function groups in the instrument control function control demand list of the nuclear power plant according the main functions; distributing each function group of the function groups into a plurality of function units; distributing signals generated form the function units into different cards of different function unit cabinets; according preset distribution rules, detecting signal distribution results to acquire initial distribution modes; subjecting the initial distribution modes to reliability detection and subjecting the signal distribution results to optimization and adjustment according to detection results. By the signal distribution method and system, correlation influence among the function signals can be lowered, and security risk of the nuclear power plant due to potential failure / fault of the digital instrument control system of the nuclear power plant is lowered.

Description

technical field [0001] The invention belongs to the technical field of nuclear power, and more specifically, the invention relates to a signal distribution method and system of a digital instrument control system of a nuclear power plant. Background technique [0002] The instrumentation and control system of a nuclear power plant is an important part of the nuclear power plant. The safe, reliable and economical operation of the unit depends to a large extent on the performance level of the instrumentation and control system. The digital instrumentation and control system (DCS) of nuclear power plants currently used comprehensively applies technologies such as computer, communication, display and control, and provides advanced control and management means as the "nerve center" of the power plant to ensure the safe and reliable operation of nuclear power plants. [0003] Nuclear power plant DSC needs to meet the requirements of reliability, safety, and economy from design to ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21D3/00G21D3/08G21C17/00
CPCY02E30/00Y02E30/30
Inventor 刘爱国孙伟李悠然郭智武张龙强孙永滨王忠秋孙奇陈卫华黄伟军彭华清何大宇郭安钟立平谭珂
Owner 中广核工程有限公司
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